Mercury 450 (4 CYL.) (1476510 THRU 1531568) Outboard Motor Parts Diagram & Catalog – Free PDF Download

by JLM Marine 30 Apr 2025 0 Comments

Mercury 450 (4 CYL.) Outboard Motor Parts Diagram & Catalog – Free PDF Download

BOTTOM COWL ASSEMBLY

Below is the parts list for Mercury 450 (4 CYL.) BOTTOM COWL ASSEMBLY:

Position No.	Part Name	OEM Number	Supersedes
1	BOTTOM COWL ASSEMBLY	103-2354A2
1	BOTTOM COWL ASSEMBLY	103-2354A3
2	COVER, PLUG-BOTTOM COWL HARNESS HOLE	29206
3	SCREW, PLUG COVER TO BOTTOM COWL	10-45893
4	LOCKWASHER, PLUG COVER FASTENING SCREW	13-26995
5	NUT, PLUG COVER FASTENING SCREW	11-26419
6	BAFFLE, BOTTOM COWL	23760
7	SCREW, BAFFLE TO BOTTOM COWL	10-21106
8	TRIM MOULDING ASSEMBLY (CHROME)	29229A1
9	SCREW, DECORATIVE-MOULDING TO BOTTOM COWL	10-29226
10	WASHER, FIBRE-MOULDING FASTENING SCREW	12-24671
11	NUT, NYLON CAP-MOULDING FASTENTING SCREW	11-29225
12	LOCKWASHER, MOULDING FASTENING SCREW	13-26995
13	NUT, BRASS-MOULDING FASTENING SCREW	11-26419
14	GASKET, POWERHEAD TO BOTTOM COWL	27-20390
15	GROUND STRAP, CYLINDER BLOCK TO BOTTOM COWL	30109
16	BRACKET, CABLE END ANCHOR	20557
17	SCREW, ANCHOR BRACKET TO BOTTOM COWL	10-29200
18	LEVER, THROTTLE CONTROL	29532
19	LEVER, SHIFT CONTROL	30612
20	BUSHING, THROTTLE AND SHIFT LEVER	23-29529
21	WASHER, THROTTLLE AND SHIFT LEVER FASTENING SCREW	12-8M0042641	12-29395
22	SCREW, THROTTLE AND SHIFT LEVER FASTENING	10-37612
23	PIN ASSEMBLY, CLEVIS YOKE	17-30978A1
24	ROLL PIN, CLEVIS YOKE PIN	17-239281
25	SCREW, CLEVIS YOKE PIN TO LEVER	10-20584
26	WASHER, WAVE-CLEVIS PIN FASTENING SCREW	13-29402
27	NUT, CLEVIS PIN FASTENING SCREW	11-8M0204718
28	SHIFT SHAFT ASSEMBLY, UPPER	25180
29	ROD (SLEEVE), SHIFT CONTROL END	27714
30	NUT, ADJUSTING-SHIFT SHAFT END	11-25168
31	ROD, LINK-SHIFT SHAFT END	25134
32	COTTER PIN, LINK ROD TO SHIFT SHAFT	18-25191
33	WASHER, SHIFT CONTROL END ROD	12-20583
34	SPRING, DETENT-SHIFT SHAFT	24-25065
35	SCREW, DETENT SPRING TO BOTTOM COWL	10-98256
36	WASHER, DETENT SPRING SCREW	12-69057
37	NUT, DETENT SPRING FASTENING SCREW	11-20013
38	TUBE, VENT-MAGNETO OUTLET (10 1/2")	32-8M0108355	32-8M0047428, 32-830756109, 32-99127109, 32-877821
39	ELBOW, MAGNETO VENT TUBE	22-996642
40	NIPPLE, MAGNETO VENT TUBE	22-291112
41	CONNECTOR BASE ASSEMBLY	21104A2
42	LOCKWASHER, CONNECTOR BASE	13-21972
43	NUT, CONNECTOR BASE TO BOTTOM COWL	11-21971
44	CLIP, CONNECTOR BASE LEAD WIRE	54-25231
45	SCREW, LEAD WIRE CLIP TO BOTTOM COWL	10-21106
46	BRACKET, LOCK KNOB-COWL FRONT COVER	30999
47	SCREW, BRACKET TO BOTTOM COWL (1 1/8")	10-21091
47	SCREW, BRACKET TO BOTTOM COWL (1 1/8")	10-21091
47	SCREW, BRACKET TO BOTTOM COWL (7/8")	10-22956
48	SCREW, BRACKET TO BOTTOM COWL (1 1/4")	10-56500
48	SCREW, BRACKET TO BOTTOM COWL (1 1/8")	10-21091
49	NUT, BRACKET FASTENING SCREW	11-8M0207775
49	NUT, BRACKET FASTENING SCREW	11-24652
50	SUPPORT, EXTERNAL WIRING HARNESS	26552
50	SUPPORT, EXTERNAL WIRING HARNESS	26552
51	SCREW, HARNESS SUPPORT TO BOTTOM COWL	10-20639
51	SCREW, HARNESS SUPPORT TO BOTTOM COWL	10-20639
52	WASHER, HARNESS SUPPORT FASTENING SCREW	12-20084
52	WASHER, HARNESS SUPPORT FASTENING SCREW	12-20084
53	NUT, HARNESS SUPPORT FASTENING SCREW	11-29250
53	NUT, HARNESS SUPPORT FASTENING SCREW	11-29250
54	PLUG, BOTTOM COWL	19-31469

CABURETOR LINKAGE AND CHOKE SOLENOID

Below is the parts list for Mercury 450 (4 CYL.) CABURETOR LINKAGE AND CHOKE SOLENOID:

Position No.	Part Name	OEM Number	Supersedes
1	CHOKE SOLENOID, TOP COWL	31593
2	DISCONNECT, KNIFE SPLICE - CHOKE SOLENOID	22647
3	SCREW, CHOKE SOLENOID TO TOP COWL	10-20540
4	LOCKWASHER, CHOKE SOLENOID SCREW	13-26992
5	SCREW, CHOKE SOLENOID TO TOP COWL	10-24773
6	LOCKWASHER, CHOKE SOLENOID SCREW	13-26991
7	GROUND STRAP ASSEMBLY, SOLENOID TO ADAPTOR	26716A1
8	SLEEVE, CHOKE SOLENOID WIRE AND HARNESS WIRE	32-26693A1
9	CLAMP, CHOKE WIRE TO STARTER SOLENOID	54-24836
-	D WASHER, CHOKE WIRE CLAMP SCREW	8M0084613	69205
10	PLUNGER ASSEMBLY, CHOKE SOLENOID	27031A1
11	ADAPTOR PLATE, CHOKE PLUNGER	27710
12	GROMMET, ADAPTOR PLATE	25-26633
13	SCREW, ADAPTOR PLATE TO CHOKE ROD BRACKET	10-30097
14	WASHER, CHOKE SOLENOID LINK	12-26014
15	COTTER PIN, CHOKE SOLENOID LINK FASTENING	18-26953
16	CARBUERTOR ASSEMBLY, COMPLETE	1333-2001
16	CARBUERTOR ASSEMBLY, COMPLETE	1333-1867
16	CARBUERTOR ASSEMBLY, COMPLETE	1333-2002
17	CLUSTER, THROTTLE LEVER ( UPPER CARBURETOR )	27917
18	SCREW, SET - CLUSTER TO THROTTLE LEVER	1395-6027
19	KNOB, CHOKE ROD	20663
19	KNOB, CHOKE ROD	90242A1
20	GROMMET, CHOKE ROD	25-20116
21	U LINK, CHOKE KNOB TO CHOKE ROD	22462
22	SCREW, U LINK TO CHOKE KNOB	10-69022
23	LOCKWASHER, U LINK FASTENING SCREW	13-26996
24	COTTER PIN, CHOKE LEVER AND ROD FASTENING	18-210711
25	CHOKE ROD - UPPER	28977
25A	CHOKE ROD AND BRACKET ASSEMBLY - UPPER	28972A1
26	SCREW, UPPER CHOKE ROD TO LOWER CHOKE ROD	10-30096
27	CHOKE ROD - LOWER	27918
--	WASHER, CHOKE ROD FASTENING SCREW	12-27882
28	RIVET, CHOKE ROD TO THROTTLE SHAFT	17-25391
29	SPRING, CHOKE ROD TO RETAINER	24-20649
29	SPRING, CHOKE ROD TO RETAINER	24-28965
30	RETAINER, CHOKE ROD SPRING	28651
30	RETAINER, CHOKE ROD SPRING	31479
31	SCREW, RETAINER TO LOWER CARBURETOR	10-28713
32	CLAMP, THROTTLE PICKUP BRACKET	27870
33	SCREW, CLAMP TO THROTTLE PICKUP BRACKET	10-69022
--	WASHER, THROTTLE PICKUP BRACKET CLAMP SCREW	12-30164
34	BRACKET ASSMEBLY, THROTTLE PICKUP	28007A1
34	BRACKET ASSMEBLY, THROTTLE PICKUP (NOT AS SHOWN)	53719A2
35	SCREW, THROTTLE BRACKET MOUNTING	10-29239

CARBURETOR ASSEMBLY

Below is the parts list for Mercury 450 (4 CYL.) CARBURETOR ASSEMBLY:

Position No.	Part Name	OEM Number
1	CARBURETOR ASSEMBLY, COMPLETE (KA-17A)	1333-2001
1	CARBURETOR ASSEMBLY, CMPLETE (KA-13A)	1333-1867
1	CARBURETOR ASSEMBLY, COMPLETE (KA-18A)	1333-2002
2	SHUTTER, CHOKE	1399-1470
3	SCREW AND LOCKWASHER, CHOKE SHUTTER	10-23035
4	SCREW, IDLE ADJUSTMENT	1399-1713
5	SPRING, IDLE ADJUSTMENT SCREW	24-27160
6	CHOKE SHAFT AND LEVER	1399-1469
7	CLIP, SHOKE SHAFT RETAINING	54-28407
8	SCREW, RETAINING CLIP TO CARBURETOR	10-28408
9	LOCKWASHER, RETAINING CLIP SCREW	13-26995
10	FLOAT ASSEMBLY	1395-8673
11	LEVER, FLOAT (LOWER)	1399-102
12	LEVER, FLOAT (UPPER)	1399-101
13	PIN, FLOAT LEVER PINION	17-20853
14	INLET NEEDLE, SEAT AND GASKET	1395-92581
15	GASKET, INLET SEAT	27-25033
16	GASKET, FLOAT BOWL COVER	1399-99
17	COVER, FLOAT BOWL	1399-1133
18	SCREW, FLOAT BOWL COVER (SHORT)	10-22625
19	SCREW, FLOAT BOWL COVER (LONG)	10-25850
20	GASKET, STRAINER COVER (LARGE)	27-25851
21	SCREE, FILTER	1399-3938
22	GASKET, STRAINER COVER (SMALL)	27-25849
23	COVER, STRAINER	1399-1135
24	GASKET, STRAINER COVER SCREW	27-25848
25	SCREW, STRAINER COVER FASTENING	10-25822
26	LEVER, THROTTLE STOP (SEE NOTE BELOW)	8146791
27	SCREW, THROTTLE STOP LEVER	1395-6027
28	TUBE, IDLE	1399-1710
29	GASKET, IDLE TUBE	27-23180
30	SHAFT, THROTTLE	1399-2012
31	SPRING, THROTTLE SHAFT RETURN (UPPER CARBURETOR)	24-20869
31	SPRING, THROTTLE SHAFT RETURN (LOWER CARBURETOR)	24-26890
32	SHUTTER, THROTTLE	1399-1711
33	SCREW AND LOCKWASHER, THROTTLE SHUTTER	10-23035
34	WELCH PLUG, BODY CHANNEL	19-20011
35	SCREW, PLUG - BODY CHANNEL	10-28845
35	SCREW, PLUG - BODY CHANNEL	10-23030
36	NOZZLE, MAIN	1399-2018
36	NOZZLE, MAIN	1399-1888
37	SCREW, PLUG - MAIN NOZZLE	10-23178
38	JET, MAIN FUEL (.053)	1399-1653
38	JET, MAIN FUEL (.055)	1399-1655
38	JET, MAIN FUEL (.057)	1399-1457
38	JET, MAIN FUEL (.059) -STANDARD	1399-1459
38	JET, MAIN FUEL (.061)	1399-1461
39	GASKET, MAIN FUEL JET	27-28409
40	SCREW, PLUG - MAIN FUEL JET CHANNEL	10-28405
41	GASKET, JET CHANNEL PLUG SCREW	27-28406
--	GASKET AND PACKING SET (1 PER CARBURETOR)	1399-2015
--	REPAIR PARTS KIT (1 PER CARBURETOR)	1395-92621
--	REPAIR PARTS KIT (1 PER CARBURETOR)	1395-92621
42	GASKET, CARUBRETOR FLANGE	27-757911
43	NUT, CARBURETOR MOUNTING STUD	11-29250
1	CARBURETOR ASSEMBLE, COMPLETE (KA-19A)	1333-2099
2	FLOAT ASSEMBLY	1395-8673
3	PIN, FLOAT LEVER PINION	17-20853
4	LEVER, FLOAT (LOWER)	1399-102
5	LEVER, FLOAT (UPPER)	1399-101
6	INLET NEEDLE, SEAT AND GASKET	1395-92581
7	GASKET, INLET SEAT	27-25033
8	GASKET, FLOAT BOWL COVER	1399-99
9	COVER, FLOAT BOWL	1399-1133
10	SCREW, FLOAT BOWL COVER (SHORT)	10-22625
11	SCREW, FLOAT BOWL COVER (LONG)	10-25850
12	GASKET, STRAINER COVER (LARGE)	27-25851
13	SCREEN, FILTER	1399-3938
14	GASKET, STRAINER COVER SCREW	27-25849
15	COVER, STRAINER	1399-1135
15	GASKET, STRAINER COVER SCREW	27-25848
16	GASKET, STRAINER COVER SCREW	27-25848
17	SCREW, STRAINER COVER FASTENING	10-25822
18	SCREW, THORTTLE STOP LEVER	1395-6027
19	LEVER, THORTTLE STOP (SEE NOTE BELOW)	8146791
20	SAHFT, THORTTLE	1399-2012
21	TUBE, IDLE	1399-1710
22	GAKET, IDLE TUBE	27-23180
23	SCREW AND LOCKWASHER, THORTTLE SHUTTER	10-23035
24	SHUTTER, THROTTLE	1399-1711
25	SPRING, IDLE ADJUSTMENT SCREW	24-27160
26	SCREW, IDLE ADJUSTMENT	1399-1713
27	SCREW, PLUG - MAIN FUEL JET CHANNEL	10-28405
28	GASKET, JET CHANNEL PLUG SCREW	27-28406
29	JET, MAIN FUEL (.061)	1399-1461
29	JET, MAIN FUEL (.059) - STANDARD	1399-1459
29	JET, MAIN FUEL (.057)	1399-1457
29	JET, MAIN FUEL (.055)	1399-1655
30	GASKET, MAIN FUEL JET	27-28409
31	NOZZLE, MAIN	1399-1888
32	SCREW, PLUG - MAIN NOZZLE	10-23178
33	SPRING, THROTTLE SHAFT RETURN (LOWER CARBURETOR)	24-26890
33	SPRING, THROTTLE SHAFT RETURN (UPPER CARBURETOR)	24-20869
34	SCREW, PLUG - BODY CHANNEL	10-23030
35	WELCH PLUG, BODY CHANNEL	19-20011
--	GASKET AND PACKING SET (1 PER CARBURETOR)	1399-2015
--	REPAIR PARTS KIT (1 PER CARBURETOR)	1395-92621
36	GASKET, CARBURETOR FLANGE	27-757911
37	NUT, CARUBRETOR MOUNTING STUD	11-29250

CARBURETOR LINKAGE AND CHOKE SOLENOID

Below is the parts list for Mercury 450 (4 CYL.) CARBURETOR LINKAGE AND CHOKE SOLENOID:

Position No.	Part Name	OEM Number
1	CHOKE SOLENOID, TOP COWL Comment: SERIAL 00000000-01570353	31593
1	CHOKE SOLENOID, TOP COWL Comment: SERIAL 01598788-09999999	31593
2	DISCONNECT, KNIFT - CHOKE SOLENOID LEAD	22647
3	SCREW, CHOKE SOLENOID TO TOP COWL	10-20540
4	LOCKWASHER, CHOKE SOLENOID SCREW	13-26992
5	GROUND STRAP ASSEMBLY, SOLENOID TO ADAPTOR	26716A1
6	SCREW, CHOKE SOLENOID TO TOP COWL	10-24773
7	LOCKWASHER, CHOKE SOLENOID SCREW	13-26991
8	SLEEVE, CHOKE SOLENOID LEAD	32-26693A1
9	S CLIP, CHOKE SOLENOID LEAD TO TOP COWL	23-27783
10	KNOB, CHOKE ROD	90242A1
11	GROMMET, CHOKE ROD	25-20116
12	U LINK, CHOKE ROD TO CHOKE KNOB	22462
13	LOCKWASHER, U LINK SCREW	13-26996
14	SCREW, U LINKM TO CHOKE KNOB	10-69022
15	COTTER PIN, U LINK TO CHOKE ROD	18-210711
16	SHUTTER, CHOKE - CARBURETOR	38604
16	SHUTTER, CHOKE - CARBURETOR	38604
16	SHUTTER, CHOKE - CARBURETOR (UPPER)	38604
17	BUSHING, NYLON - UPPER CHOKE SHUTTER	23-30438
18	ROD, CHOKE	13520
18	ROD, CHOKE	31519
19	RIVET, CHOKE SHUTTER TO CHOKE ROD	17-25391
20	STUD, CARBURETOR - CHOKE SHUTTER PIVOT	16-30172
21	WASHER, CHOKE SHUTTER CARBURETOR STUD	12-30164
22	NUT, CHOKE SHUTTER TO CARBURETOR STUD	11-20110
23	SPRING, TENSION - CHOKE ROD	24-28965
24	SCREW, RETAINER TO LOWER CARBURETOR	10-28713
25	RETAINER, CHOKE ROD SPRING TO CARBURETOR	27711
26	CARBURETOR ASSEMBLY, COMPLETE	1333-2099
27	THROTTLE PICK-UP BRACKET ASSMEBLY	53719A2
28	SCREW, THROTTLE PICK-UP BRAKCET MOUNTING	10-29239
29	CLUSTER, THROTTLE LEVER ( UPPER CABURETOR )	27917
30	SCREW, CLUSTER TO THROTTLE LEVER	1395-6027
31	PLUGER AND LINK ASSEMBLY, CHOKE SOLENOID	48315A4
32	WASHER, PLUNGER AND LINK	12-30164
33	COTTER PIN, LINK TO UPPER CHOKE SHUTTER	18-26953

CLAMP AND SWIVEL BRACKET (MERC 500)

Below is the parts list for Mercury 450 (4 CYL.) CLAMP AND SWIVEL BRACKET (MERC 500):

Position No.	Part Name	OEM Number	Supersedes
1	CLAMP BRACKET ASEMBLY	1440-1795A1
2	THUMB SCREW ASSEMBLY	28403A3
3	WASHER, THUMB SCREW	12-28404
4	TUBE, TILT -CLAMP BRACKET TO SWIVEL BRACKET	8M0041936	8M0035074, 883067, 30664 2, 74528
5	SHIM, CLAMP BRACKET TO SWIVEL BRACKET	12-52864
6	NUT, TILT TUBE	11-858869	11-30499
7	CAP, PALSTIC - TILT TUBE	53078
8	STUD, CLAMP BRACKET	16-59625
9	SPACER, CLAMP B RACKET STUD	23-59624
10	LOCKWASHER, CLAMP BRACKET STUD	13-8M0204647
11	NUT, CLAMP BRACKET STUD	11-22053
12	TILT LOCK PIN ASSEMBLY	17-8M0026068	17-49930A 1
13	SLEEVE, RUBBER - TILT LOCK PIN BUMPER	32-28052
14	TILT STOP LEVER ASSEMBLY	30200A1
15	SCREW, TILT STOP LEVER ANCH OR	10-28339
16	WASHER, WAVE - LEVER ANCHOR SCREW	13-20846
17	NUT, LEVER ANCHOR SCREW	11-24652
18	REVERSE LOCK ASSEMBLY	26903A3
19	COTTER PIN, REVERSE LOCK TO SHAFT	18-45882
20	SPRING, REVERSE LOCK TENSION	24-29821
21	PIN, REVERSE LOCK SPRING ATTACHING	17-25598
22	SHAFT, REVERSE LOCK TO SWIVEL BRACKET	56349
23	SWIVEL BRACKET ASSEMBLY	1444-1801A1
24	FITTING, GREASE - SWIVEL BRACKET	22-69059
25	OIL SEAL	26-32911
26	LUBRICAP, SWIVEL BRACKET GREASE FITTING	19-77633Q
27	PIN, UPPER SHOCK MOUNTING	55-28415
28	SPACER, UPPER BUSHING TO CLAMP BRACKET	23-28024
29	WASHER, UPPER BUSHING RETAINER (INNER)	12-28025
30	WASHER, UPPER BUSHING RETAINER (OUTER)	12-28420
31	BOLT, NYLOCK - UPPER SHOCK MOUNTING PIN	10-28449
32	PIN, LOWER SHOCK MOUNTING	55-28413
33	SPACER, LOWER BUSHING TO SWIVEL BRACKET	23-28032
34	WASHER, LOWER BUSHING RETAINER (OUTER)	12-28420
35	BOLT, NYLOCK - LOWER SHOCK MOUNTING PIN	10-28449
36	SHOCK ABSORBER	55-28054
37	BUSHING, RUBBER - SHOCK ABSORBER	23-28055
38	SWIVEL PIN AND TOP YOKE ASSEMBLY	17-28418A4
39	NUT, SWIVEL PIN RETAINING	11-71956
40	BOLT, UPPER MOUNT TO SWIVEL PIN	10-33986
41	BUMPER, TOP YOKE	30711
42	WASHER, LOWER - SWIVEL PIN	12-26837
43	BOTTOM YOKE	30462
44	WASHER, SWIVEL PIN TO BOTTOM YOKE	12-25176
45	SERIAL PLATE	38-56267
46	SCREW, DRIVE - SERIAL PLATE TO SWIVEL BRACKET	10-25612
47	BOLT, CARRIAGE - CLAMP BRACKET TO BOAT TRANSOM	10-68298
48	WASHER, CARRIAGE BOLT	12-68410
49	NUT, CARRIAGE BOLT	11-82670912

CLAMP AND SWIVEL BRACKET ASSEMBLY

Below is the parts list for Mercury 450 (4 CYL.) CLAMP AND SWIVEL BRACKET ASSEMBLY:

Position No.	Part Name	OEM Number	Supersedes
1	CLAMP BRACKET ASSEMBLY (NOT AS SHOWN)	1427-1810A1
1	CLAMP BRACKET ASSEMBLY	1440-1797A1
2	THUMB SCREW ASSEMBLY	22477A4
2	THUMB SCREW ASSEMBLY	28403A3
3	WASHER, THUMB SCREW	12-26227
3	WASHER, THUMB SCREW	12-28404
4	TUBE, TILT - CLAMP BRACKET TO SWIVEL BRACKET	8M0041936	8M0035074, 883067, 30664 2, 74528
5	SHIM, CLAMP BRACKET TO SWIVEL BRACKET (.010)	12-52864
6	NUT, TILT TUBE FASTENING	11-858869	11-30499
7	CAP, PLASTIC - TILT TUBE ENDS	53078
8	STUD, CLAMP BRACKET	16-59625
9	SPACER, CLAMP BRACKET STUD	23-59624
10	LOCKWASHER, CLAMP BRACKET STUD	13-8M0204647
11	NUT, STUD TO CLAMP BRACKETS	11-22053
12	TILT LOCK PIN ASSEMBLY	17-8M0026068	17-49930A 1
13	REVERSE LOCK ASSEMBLY	26903A3
14	COTTER PIN, REVERSE LOCK TO SHAFT	18-45882
15	SPRING, TENSION - REVERSE LOCK	24-29821
16	ROLL PIN, REVERSE LOCK SPRING ATTACHING	17-25598
17	SHAFT, REVERSE LOCK TO SWIVEL BRACKET	56349
18	SWIVEL BRACKET ASSEMBLY Comment: SERIAL 00000(1)-01507833	1401-1977A1
18	SWIVEL BRACKET ASSEMBLY Comment: SERIAL )1507834-09999999	1401-1822A1
18	SWIVEL BRACKET ASSEMBLY	1442-2501A1
19	FITTING, GREASE - SWIVEL BRACKET	22-69059
20	OIL SEAL, SWIVEL BRACKET Comment: SERIAL 00000(1)-01507833	26-32911
20	OIL SEAL, SWIVEL BRACKET Comment: SERIAL )1507834-09999999	26-32911
21	LUBRICAP, SWIVEL BRACKET GREASE FITTING	19-77633Q
22	LEVER, TILT STOP - STARBOARD SIDE	20215
23	LEVER, TILT STOP - PORT SIDE	26864
22	LEVER, TILT STOP - STARBOARD SIDE	29057
23	LEVER, TILT STOP - PORT SIDE	29056
24	SCREW, ANCHOR - TILT STOP LEVER	10-20217
24	SCREW, ANCHOR - TILT STOP LEVER	10-27791
25	SPACER, TILT STOP LEVER	23-20216
25	SPACER, TILT STOP LEVER ANCHOR SCREW	23-29055
26	SCREW, RETAINING - TILT STOP LEVER	10-29237
26	SCREW, RETAINING - TILT STOP LEVER	10-27790
27	SHIM, RETAINING SCREW - PORT SIDE	15-20473
28	WASHER, WAVE - RETAINING SCREW - PORT SIDE	13-20846
29	NUT, ANCHOR AND RETAINING SCREW	11-24652
30	WASHER, SWIVEL PIN TO BOTTOM YOKE (.060)	12-27964
30	WASHER, SWIVEL PIN TO BOTTOM YOKE (.065)	12-25176
30	WASHER, SWIVEL PIN TO BOTTOM YOKE (.065)	12-26837
31	BOTTOM YOKE ASSEMBLY (NOT AS SHOWN)	30462A1
31	YOKE, BOTTOM	30462
32	SWIVEL PIN AND TOP YOKE ASSEMBLY Comment: SERIAL 00000(1)-01507833	17-27739A3
32	SWIVEL PIN AND TOP YOKE ASSEMBLY Comment: SERIAL )1507834-09999999	17-28418A4
33	BUMPER, TOP YOKE	30711
34	BOLT, UPPER MOUNT TO SWIVEL PIN	10-33986
--	RING, RETAINING - SWIVEL PIN Comment: SERIAL 00000(1)-01507833	53-27743
35	NUT, RETAINING - SWIVEL PIN Comment: SERIAL )1507834-09999999	11-71956
36	SERIAL PLATE	38-56267
37	SCREW, DRIVE - SERIAL PLATE TO SWIVEL BRACKET	10-25612
38	BOLT, CLAMP BRACKET TO BOAT TRANSOM	10-26483
38	BOLT, BLAMP BRACKET TO BOAT TRANSOM	10-68298
39	WASHER, CLAMP BRACKET BOLT	12-67981
39	WASHER, CLAMP BRACKET BOLT	12-68410
40	NUT, CLAMP BRACKET BOLT	11-8M0204646
40	NUT, CLAMP BRACKET BOLT	11-82670912

COWLING AND FRONT COVER

Below is the parts list for Mercury 450 (4 CYL.) COWLING AND FRONT COVER:

Position No.	Part Name	OEM Number
1	COWL FRONT COVER ASSEMBLY (NOT AS SHOWN)	2104-2654A5
1	COWL FRONT COVER ASSEMBLY	2104-2654A5
1	COWL FRONT COVER ASSEMBLY	2104-2654A5
2	EMBLEM, FRONT COVER	26183A5
3	SCREW, BRACKET TO FRONT COVER	10-29226
4	LOCKWASHER, BRACKET FASTENING SCREW	13-26995
5	NUT, BRACKET FASTENING SCREW	11-26419
6	BUMPER, RUBBER - FRONT COVER BRACKET	29345
7	KNOB, COWL FRONT COVER FASTENING	56848
8	WASHER, COVER FASTENING KNOB (RUBBER) - EARLY 50G MODELS	12-30771
8	WASHER, COVER FASTENING KNOB (NYLON) - LATE 500 MODELS	12-26702
9	WASHER, COVER FASTENING KNOB (STEEL)	12-26825
10	SPRING, TENSION - FASTENING KNOB	24-31353
11	ROLL PIN, TENSION SPRING TO KNOB	17-29077
12	BLANKET, SOUND ABSORBING - FRONT COVER - EARLY 500 MODELS	29343
12A	STRIP, RUBBER - COWL FRONT COVER - LATE 500 MODELS	31095
13	WRAP AROUND COWL ASSEMBLY (NOT AS SHOWN)	195-1961A2
13	WRAP AROUND COWL ASSEMBLY	2106-2353A2
13	WRAP AROUND COWL ASSEMBLY	2106-2353A2
13	WRAP AROUND COWL ASSEMBLY	2106-2353A2
14	HANDLE, COWL LATCH	21060
15	"E" RING, COWL LATCH HINGE PIN	53-21058
16	PIN, HINGE - COWL LATCH HANDLE	17-21057
17	SWIVEL, COWL LATCH	25690
18	HOOK, COWL LATCH FASTENING	25691
19	BLANKET, SOUND ABSORBING - WRAP AROUND COWL	24825
20	DECAL, WRAP AROUND COWL - STARBOARD	37-43198A84
21	DECAL, WRAP AROUND COWL - PORT	37-43198A84
20	DECAL, WRAP AROUND COWL - STARBOARD	37-43198A84
21	DECAL, WRAP AROUND COWL - PORT	37-43198A84
22	DECAL, WRAP AROUND COWL - REAR	37-31883
20	DECAL, WRAP AROUND COWL - STARBOARD	37-43198A84
21	DECAL, WRAP AROUND COWL - PORT	37-43198A84
--	GLUE, ADHESIVE - BLANKET FASTENING	92-86166Q1
--	ADHESIVE COMPOUND (3 1/2 OUNCE KIT) EMBLEM FASTENING	92-271091

CRANKSHAFT, PISTON AND CONNECTING ROD

Below is the parts list for Mercury 450 (4 CYL.) CRANKSHAFT, PISTON AND CONNECTING ROD:

Position No.	Part Name	OEM Number
1	NUT, FLYWHEEL	11-8M0214915
2	WASHER, FLYWHEEL NUT	12-26617
3	KEY, FLYWHEEL DRIVE	28-20094
4	CRANKSHAFT	400-2976A2
5	"O" RING, DRIVE SHAFT SPLINE	25-29619
6	CENTER MAIN BEARING ASSEMBLY	500-5345A4
7	DOWEL PIN, CENTER MAIN BEARING	17-20032
8	BEARING, NEEDLE	29-20046T
9	RACE, OUTER	20047
10	RING, SNAP - OUTER RACE CLAMPING	53-20048
11	SCREW, CENTER MAIN BEARING CLAMPING	10-28666
12	DOWEL PIN (STEPPED)	17-20379
13	MAIN BEARING ASSEMBLY (VALVE TYPE)	527-1619A4
14	DOWEL PIN, MAIN BEARING	17-20032
15	SCREW, MAIN BEARING CLAMPING (3/8")	10-22654
15	SCREW, MAIN BEARING CLAMPING (1/2")	10-25313
16	NUT, MAIN BEARING CLAMPING SCREW	11-29469
17	REED SET, MATCHED - MAIN BEARING	34-88498A1
18	REED STOP,, MAIN BEARING REED VALVES	34-20053
--	WASHER, REED STOP MOUNTING SCREW	12-26014
19	SCREW, REED STOP MOUNTING (3/8")	10-20055
19	SCREW, REED STOP MOUNTING (1/2")	10-77280
20	NUT, REED STOP MOUNTING SCREW	11-29469
21	PISTON AND PISTON PIN ASSEMBLY	724-2537A2
22	LOCK RING, PISTON PIN	40-20057
23	RING, PISTON	39-27841A12
24	CONNECTING ROD AND CAP ASSEMBLY (SEE NOTE BELOW)	600-2748A2
25	SCREW, CAP TO CONNECTING ROD	10-45379
26	NUT, CONNECTING ROD SCREW	11-20061
27	BEARING, NEEDLE - CRANKPIN	29-20046T
28	BEARING, NEEDLE - PISTON PIN	29-20063
29	WASHER, NEEDLE LOCATION (#)
--	PISTON AND PISTON PIN ASSEMBLY (OVERSIZED .015)	724-2553A2
--	RING, PISTON (OVERSIZED .015)	39-28616A12

CYLINDER BLOCK AND CRANKCASE ASSEMBLY

Below is the parts list for Mercury 450 (4 CYL.) CYLINDER BLOCK AND CRANKCASE ASSEMBLY:

Position No.	Part Name	OEM Number	Supersedes
1	END CAP ASSEMBLY, UPPER	1100-339A1
2	OIL SEAL	26-41953
3	"O" RING, UPPER END CAP	25-20081
4	BALL BEARING, UPPER END CAP	30-63742T
5	SHIM, UPPER END CAP TO CRANKCASE AND BLOCK (.002-3-5-10)	15-20082
6	SCREW, UPPER END CAP MOUNTING	10-29198
7	CYLINDER BLOCK AND CRANKCASE ASSEMBLY	831-2414A2
7	CYLINDER BLOCK AND CRANKCASE ASSEMBLY	831-2414A2
8	BUSHING, CRANKCASE	23-26348
9	DOWEL PIN, CYLINDER BLOCK TO MAIN BEARING	17-20032
10	DOWEL PIN, CYLINDER BLOCK TO CENTER MAIN BEARING	17-20323
11	PLUG, PIPE - WATER PRESSURE AND BALANCE TUBE HOLES	22-328022
12	STUD, CARBURETOR MOUNTING (1 1/4")	16-21831
13	STUD, CRANKCASE TO DRIVE SHAFT HOUSING (1 5/8")	16-33111
14	DOWEL PIN, CRANKCASE TO CYLINDER BLOCK	17-43044
15	STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (3 7/16")	16-8M0034463	16-56297 2
16	STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (1 15/16")	16-29989
17	EXTENSION, EXHAUST - CYLINDER BLOCK	36157
18	SCREW, EXHAUST EXTENSION TO CYLINDER BLOCK	10-31096
18	SCREW, EXHAUST EXTENSION TO CYLINDER BLOCK	10-31096
18	SCREW, EXHAUST EXTENSION TO CYLINDER BLOCK	10-32079
18	SCREW, EXHAUST EXTENSION TO CYLINDER BLOCK	10-32079
19	WASHER, EXHAUST EXTENSION FASTENING SCREW	12-20028
20	SCREW, CRANKCASE TO CYLINDER BLOCK (1 1/2")	10-78841
21	SCREW, CRANKCASE TO CYLINDER BLOCK (2 3/4")	10-22039
22	NUT, CRANKCASE FASTENING SCREW	11-29250
23	SCREW, MAIN BEARING LOCKING	10-20089
23	SCREW, MAIN BEARING LOCKING	10-98260
24	TAB WASHER, BEARING LOCKING SCREW	14-20091
25	SCREW, CENTER MAIN BEARING LOCKING	10-20359
26	END CAP ASSEMBLY, LOWER	1102-4181A3
27	CHECK VALVE ASSEMBLY, LOWER END CAP	21-28481A1
28	OIL SEAL, LOWER	26-29477
29	OIL SEAL, UPPER	26-41953
30	"O" RING, LOWER END CAP	25-20081
31	BALL BEARING, LOWER END CAP	30-63742T
32	SHIM, LOWER END CAP TO CRANKCASE AND BLOCK (.002-3-5-10)	15-20085
33	SCREW. LOWER END CAP MOUNTING	10-29198
34	TUBE, BALANCE - MAIN BEARING	32-8M0108355	32-8M0047428, 32-830756109, 32-99127109, 32-877821
35	CONNECTOR, BALANCE TUBE TO CYLINDER BLOCK	22-291112
36	CLAMP, BALANCE TUBE TO CONNECTORS	54-20386
37	GASKET, CYLINDER BLOCK TO MANIFOLD PLATE	27-26923
38	PLATE, EXHAUST MANIFOLD	26922
37	GASKET, EXHAUST PLATE TO EXHAUST COVER	27-26923
39	COVER, EXHAUST MANIFOLD	28240
40	SCREW, MANIFOLD COVER TO CYLINDER BLOCK	10-28668
40	SCREW, MAINFOLD COVER AND HIGH TENSION LEAD MOUNTING	10-28666
41	WASHER, MANIFOLD COVER AND HIGH TENSION LEAD CLIP SCREWS	12-20028
42	SWITCH, MERCURY - EXHAUST MANIFOLD COVER	58124A1
43	CLAMP, MERCURY SWITCH TO MANIFOLD COVER	54-22875
44	SCREW, MERCURY SWITCH CLAMP FASTENING	10-20401
45	"D" WASHER, CLAMP AND CLIP FASTENING SCREW	8M0084613	69205
46	CLIP, MERCURY SWITCH LEAD WIRE TO MAGNETO	54-25231
47	SCREW, LEAD WIRE CLIP FASTENING	10-20401
48	GASKET, CYLINDER BLOCK COVER	27-22333
49	CYLINDER BLOCK CCOVER ASSEMBLY	1000-1A1
50	BUSHING, CYLINDER BLOCK COVER	23-26348
50	BUSHING, CYLINDER BLOCK COVER	23-26348
51	SCREW, CYLINDER BLOCK COVER MOUNTING	10-20653
52	NUT, COVER MOUNTING SCREW	11-24652
53	GASKET, TRANSFER PORT COVER	27-279361
54	COVER, TRANSFER PORT	27935
55	SCREW, TRANSFER PORT COVER MOUNTING	10-20540
56	CHECK VALVE ASSEMBLY, BLLD HOSE (UPPER)	22-62365A1
57	CHECK VALVE ASSEMBLY, BLLED HOSE VALVE	21-28481A1
58	HOSE, CYLINDER BLEED (6 1/2")	32-9912688
59	CONNECTOR, CYLINDER BLEED HOSE (LOWER)	22-67902
60	CLAMP, BLEED HOSE TO CHECK VALVE AND CONNECTOR	54-20387

DRIVE SHAFT HOUSING ASSEMBLY

Below is the parts list for Mercury 450 (4 CYL.) DRIVE SHAFT HOUSING ASSEMBLY:

Position No.	Part Name	OEM Number	Supersedes
1	DRIVE SHAFT HOUSING	1545-2337A4
2	TUBE, WATER INLET	32-31998
3	RING, RUBBER - WATER INLET TUBE	25-24961
4	SEAL, WATER INLET TUBE	26-25192
5	SLEEVE, WATER INLET TUBE	23-23651
6	COVER, TRIM - DRIVE SHAFT HOUSING	35394A1
7	SCREW, TRIM COVER TO DRIVE SHAFT HOUSING	10-30742
8	DECAL, "FULL GEAR SH IFT" - STARBOARD	37-32109
9	DECAL, "FULL GEAR SHIFT" - PORT	37-32110
10	BAFFLE, EXHAUST RELIEF	32016
11	SCREW, RELIEF BAFFLE TO DRIVE SHAFT HOUSING	10-25255
12	GASKET, DRIVE SHAFT HOUSING TO BOTTOM COWL	27-31995
13	NUT, POWERHEAD STUDS	11-862902	11-25594
14	PLUG, PLASTIC - WATER PICK-UP SCREW HOLE	19-29850
15	STUD, DRIVE SHAFT HOUSING TO GEAR HOUSING (1 3/4")	16-8M0022145	16-57932
16	STUD, DRIVE SHAFT HOUSING TO GEAR HOUSING (3")	16-57935
17	NUT, GEAR HSG, TO DRIVE SHAFT HOUSING STUDS (7/16)	11-8M0204653
18	COTTER PIN, PUSH ROD TO REVERSE LOCK	18-25191
19	ROD, PUSH - REVERSE LOCK	32102
19	ROD, PUSH - REVERSE LOCK	28470
20	PIN, REVERSE LOCK LEVER	17-24887
21	SPRING, TENSION - PUSH ROD	24-25122
22	LEVER, REVERSE LOCK	52920
23	CAP, RUBBER - UPPER MOUNT BOLT NUT	25305
24	NUT, UPPER MOUNT BOLT	11-23161
25	WASHER, UPPER MOUNT BOLT (3/8 ID)	12-30519
26	WASHER, RUBBER - UPPER MOUNT BOLT	12-30521
27	WASHER, UPPER MOUNT BOLT (37/64 ID)	12-30520
28	COVER, UPPER MOUNT - OUTSIDE HALF	79680A1
29	COVER, UPPER MOUNT - INSIDE HALF	79680A1
30	MOUNT, RUBBER - UPPER	75305
31	PACKING, "U" CUP - UPPER MOUNT COVERS	24929
32	SCREW, UPPER MOUNT COVER - REAR (1 3/4")	10-37941
33	SCREW, UPPER MOUNT COVER - FRONT (1 1/2")	10-28772
34	WASHER, MOUNT COVER FASTENING SCREW	12-8M0204649
35	NUT, UPPER MOUNT COVER FASTENING SCREW	11-35888
36	BUMPER, RUBBER - LOWER MOUNT SCREW	25067
37	SCREW, LOWER MOUNT (5 1/2")	10-75284
38	WASHER, LOWER MOUNT SCREW	12-28051
39	WASHER, RUBBER - LOWER MOUNT SCREW	12-28053
40	MOUNT, RUBBER - LOWER	75304T1
41	WASHER, LOWER MOUNT SCRW (1/8")	12-30119
42	NUT, LOWR MOUNT SCREW	11-25096
43	COVER, LOWER MOUNT (PORT SIDE)	28241
43	COVER, LOWER MOUNT (STARBOARD SIDE)	28242
44	SCREW, LOWER MOUNT COVER TO DRIVE SHAFT HOUSING	10-29256
45	PLUG, GREASE - REVERSE LOCK HOLE	22-390721
1	DRIVE SHAFT HOUSING	1522-1567
2	TUBE, WATER INLET	32-31117
3	SEAL, WATER INLET TUBE	26-25192
4	SLEEVE, WATER INLET TUBE	23-23651
5	GASKET, DRIVE SHAFT HOUSING TO BOTTOM COWL	27-24899
6	NUT, POWERHEAD STUDS	11-862902	11-25594
7	SCREW, GEAR HOUSING TO DRIVE SHAFT HOUSING	10-25093
8	STUD, DRIVE SHAFT HOUSING TO GEAR HOUSING	16-29103
9	NUT, GEAR HOUSING AND DRIVE SHAFT HOUSING STUDS	11-8M0204653
10	ROD, PUSH-REVERSE LOCK	28470
11	PIN, REVERSE LOCK LEVER	17-24887
12	COTTER PIN, PUSH ROD	18-25191
13	SPRING, TENSION-PUSH ROD	24-25122
14	LEVER, REVERSE LOCK	52920
15	MOUNT, RUBBER-UPPER	24926A1
16	COVER, UPPER MOUNT-OUTSIDE HALF	79680A1
17	COVER, UPPER MOUNT-INSIDE HALF	79680A1
18	PACKING, "U" CUP	24929
19	WASHER, UPPER MOUNT BOLT (17/32 ID)	12-24889
20	WASHER, RUBBER-UPPER MOUNT BOLT	12-24891
21	SPACER, UPPER MOUNT BOLT	23-30474
22	WASHER, UPPER MOUNT BOLT (25/64 ID)	12-11367
23	NUT, UPPER MOUNT BOLT	11-23161
24	CAP, RUBBER-UPPER MOUNT BOLT NUT	25305
25	SCREW, UPPER MOUNT COVER (1 1/2")	10-28772
26	SCREW, UPPER MOUNT COVER (1 3/4")	10-37941
27	WASHER, MOUNTING COVER SCREW	12-8M0204649
28	NUT, MOUNTING COVER SCREW	11-35888
29	MOUNT, RUBBER-LOWER	75304T1
30	WASHER, RUBBER-LOWER MOUNT	12-28053
31	WASHER, LOWER MOUNT	12-28051
32	WASHER, MOUNTING SCREW (1/8")	12-30119
33	NUT, MOUNTING SCREW	11-25096
34	SCREW, LOWER MOUNT (5 1/2")	10-75284
35	BUMPER, RUBBER-MOUNTING SCREW	25067
36	COVER, LOWER MOUNT (PORT SIDE)	28241
36	COVER, LOWER MOUNT (STARBOARD SIDE)	28242
37	SCREW, LOWER MOUNT COVER FASTENING	10-29256
38	PLUG,GREASE-REVERSE LOCK HOLE	22-390721

FLYWHEEL ASSEMBLY AND STATOR

Below is the parts list for Mercury 450 (4 CYL.) FLYWHEEL ASSEMBLY AND STATOR:

Position No.	Part Name	OEM Number
1	NUT, FLYWHEEL	11-8M0214915
2	WASHER, FLYWHEEL NUT	12-26617
3	KEY, FLYWHEEL DRIVE	28-20094
4	FLYWHEEL ASSEMBLY - NOT AS SHOWN	223-2402A7
4	FLYWHEEL ASSEMBLY	215-3289A1
4	FLYWHEEL ASSEMBLY Comment: SERIAL )1477910-01480087	215-1850A4
4	FLYWHEEL ASSEMBLY Comment: SERIAL )1480088-01480159	215-2026A2
5	FLANGE, FLYWHEEL PULLEY	29788
6	PULLEY, FLYWHEEL	30306
7	HUB, FLANGE - FLYWHEEL PULLEY	29787
8	DOWEL PIN, FLYWHEEL PULLEY	17-26618
9	RATCHET, FLYWHEEL LATER FLYWHEELS HAVE CAST ON RATCHET	50-25263
10	SCRW,RATCHET TO FLYWHL LATER FLYWHEELS HAVE CAST ON RATCHET	10-29238
11	STATOR, ALTERNATOR - FLYWHEEL Comment: SERIAL )1477910-01480087	398-1455
11	STATOR, ALTERNATOR - FLYWHEEL Comment: SERIAL )1480088-01480159	398-2085A1
11	STATOR, ALTERNATOR - FLYWHEEL	398-2085A1
12	DISCONNECT, KNIFE SPLICE - STATOR LEAD WIRE	22647
13	SLEEVE, RUBBER - STATOR LEAD WIRE	32-61115
14	SCREW, STATOR TO UPPER END CAP Comment: SERIAL )1477910-01480087	10-68918
14	SCREW, STATOR TO UPPER END CAP Comment: SERIAL )1480088-01480159	10-57021
15	CLIP, STATOR LEAD TO CRANKCASE FLANGE	54-24836
16	SCREW, STATOR LEAD CLIP FASTENING	10-8M0113176

FUEL PUMP ASSEMBLY

Below is the parts list for Mercury 450 (4 CYL.) FUEL PUMP ASSEMBLY:

Position No.	Part Name	OEM Number	Supersedes
1	FUEL PUMP ASSEMBLY	30269A2
2	GASKET, CHECK VALVE TO HOUSING	27-23005
3	VALVE, CHECK	21-8M0082362	21-30430, 21-F177330, F84330-1
4	RETAINER, CHECK VALVE	23004
5	SCREW, RETAINER TO HOUSING	10-43725
6	GASKET, FUEL PUMP	27-24863
7	DIAPHRAGM, FUEL PUMP	23014
8	COVER, FUEL PUMP	23008
9	GASKET, FUEL PUMP COVER	27-30276
10	SCREW, FUEL PUMP MOUNTING (1 3/4")	10-29126
11	SCREW, FUEL PUMP MOUNTING (1 1/2")	10-29029
12	CONNECTOR, PUMP INLET TO FUEL LINE	22-22949
13	SLEEVE, RUBBER - CONNECTOR	22-22946
14	NUT, CONNECTOR TO FUEL LINE	22-22948
15	FUEL LINE, FUEL PUMP TO LOWER FILTER	32-30035
16	ELBOW, FUEL PUMP INLET	22-22995
17	SLEEVE, RUBBER	22-22946
18	NUT, ELBOW	22-22948
19	FUEL LINE, FUEL PUMP TO ADAPTOR	32-30036
20	ADAPTOR, CHECK UNIT ( FUEL LINE )	22833
20	ADAPTOR, CHECK UNIT ( FUEL LINE )	30186
21	STEM, CHECK UNIT ADAPTOR	23069
21	STEM, CHECK UNIT ADAPTOR	30187
22	O RING, ADAPTOR STEM	25-16524
23	SPRING, ADAPTOR STEM	24-23067T
23	SPRING, ADAPTOR STEM	24-30189
24	CUP WASHER, ADAPTOR	30188
25	SCREW, ADAPTOR TO BOTTOM COWL	10-20784
26	NUT, ADAPTOR SCREW	11-24652
27	FUEL LINE, UPPER TO LOWER FILTER	32-38527
27A	FUEL LINE, FUEL PUMP TO FILTER TO FILTER	32-32094
28	TEE ASSEMBLY, LOWER FILTER	22-25956

GEAR HOUSING ASSEMBLY, COMPLETE(MERC 450M & 500E-1) (PAGE 1)

Below is the parts list for Mercury 450 (4 CYL.) GEAR HOUSING ASSEMBLY, COMPLETE(MERC 450M & 500E-1) (PAGE 1):

Position No.	Part Name	OEM Number	Supersedes
-	GEAR HOUSING ASSEMBLY, COMPLETE (STANDARD) - SEE NOTE BELOW	1626-1972A3
1	GEAR HOUSING ASSEMBLY	1626-1972A1
2	STUD, WATER PUMP BODY AND BASE TO GEAR HOUSING	16-32027
3	STUD, GEAR HOUSING TO DRIVE SHAFT HOUSING	16-32017
4	BEARING, ROLLER - DRIVE SHAFT	31-62091T
5	SHAFT, SHIFT - LOWER	56622A1
6	CLIP, RETAINING - SHIFT SHAFT	53-29641
7	"O" RING, SHIFT SHAFT BUSHING	25-25439
8	BUSHING ASSEMBLY, SHIFT SHAFT	23-46284A1
9	OIL SEAL, SHIFT SHAFT BUSHING	26-892361
10	CAM, LOWER - REVERSE LOCKING	52918
11	CAM, UPPER - REVERSE LOCKING	52919
12	DRIVE SHAFT (STANDARD)	45-38466
13	SHIM, DRIVE SHAFT BEARING TO GEAR HOUSING	15-20929A1
14	BEARING, BALL - DRIVE SHAFT	30-72961
15	RING, SNAP - BALL BEARING RETAINING	53-29116
16	SHIM, BEARING TO WATER PUMP BASE	15-20929A1
17	GEAR, PINOIN - DRIVE SHAFT	43-20834
18	TAB WASHER, PINOIN GEAR FASTENING SCREW	14-29163
19	SCREW, PINOIN GEAR TO DRIVE SHAFT	10-20925
20	"O" RING, WATER PUMP BASE	25-26855
21	WATER PUMP BASE ASSEMBLY	46-32012A1
22	OIL SEA, WATER PUMP BASE	26-90562
23	DOWELL PIN, WATER PUMP BASE TO WATER PUMP BODY	17-29596T
24	STUD, WATER PUMP BASE	16-20990
25	SEAL, WATER PUMP BODY TO WATER INTAKE TUBE	26-32005
26	TUBE, WATER INTAKE - GEAR HOUSING	32-31994
27	SEAL, WATER INTAKE TUBE TO GEAR HOUSING	26-38970
28	SLEEVE, WATER INTAKE TUBE	23-32052
29	GASKET, LOWER - WATER PUMP BASE TO FACE PLATE	27-32011
30	PLATE, FACE - WATER PUMP BASE TO WATER PUMP BODY	32009
31	GASKET, UPPER - FACE PLATE TO WATER PUMP BODY	27-32010
32	IMPELLER, WATER PUMP	47-89983T
33	PIN, IMPELLER DRIVE	28-8M0032837	28-56662
34	WATER PUMP BODY ASSEMBLY	46-32013A1
35	INSERT, WATER PUMP BODY	32001
36	OIL SEA, WATER PUMP BODY	26-32121
37	LOCKWASHER, WATER PUMP BODY AND BASE STUDS	13-26992
38	NUT, WATER PUMP BODY AND BASE FASTENING STUDS	11-29598
39	SEAL, WATER PUMP BODY TO WATER INLET TUBE	26-25192
40	RING, RUBBER - CENTRIFUGAL SLINGER (DRIVE SHAFT)	25-20273
41	"O" RING, UPPER - DRIVE SHAFT	25-29619
42	SCREW, GEAR HOUSING FLUSHING HOLE	10-29608
43	GASKET, GEAR HOUSING FLUSHING HOLE SCREW	16-68202
44	SEAL, GEAR HOUSING FLUSHING HOLE	26-8M0214917
45	SCREW, GREASE FILLER AND VENT HOLE	10-79953Q04
46	WASHER, GREASE FILLER AND VENT HOLE SCREW	12-191833

GEAR HOUSING ASSEMBLY, COMPLETE(MERC 450M & 500E-1) (PAGE 2)

Below is the parts list for Mercury 450 (4 CYL.) GEAR HOUSING ASSEMBLY, COMPLETE(MERC 450M & 500E-1) (PAGE 2):

Position No.	Part Name	OEM Number
-	GEAR HOUSING ASSEMBLY, COMPLETE (STANDARD) - SEE NOTE BELOW	1626-1972A3
1	GEAR HOUSING ASSEMBLY (SEE PAGE FOR PARTS BREAKDOWN)	1626-1972A1
47	CAM, SHIFT	760394
48	FOLLOWER, CAM	20930
49	SLIDE, CROSS PIN	20843
50	SPRING, COMPRESSION - CAM FOLLOWER	24-20254
51	SHIM, BEARING CUP TO GEAR HOUSING	15-31154A1
--	FORWARD GEAR ASSEMBLY, COMPLETE	43-20975A5
52	FORWARD GEAR ASSEMBLY	43-20975A5
53	BEARING, ROLLER - FORWARD GEAR ASSEMBLY	31-20249
54	TAPERED ROLLER BEARING ASSEMBLY	31-31215A1
55	CUP, TAPERED ROLLER BEARING	31-31216
56	RATCHET, SLIDING CLUTCH	52-32189
57	PIN, CROSS - RATCHET TO PROPELLER SHAFT	17-20841
58	RING, RETAINING - CROSS PIN	53-20842
59	SHAFT, PROPELLER	44-32000
--	REVERSE GEAR ASSEMBLY, COMPLETE	43-20975A5
60	REVERSE GEAR ASSEMBLY	43-20975A5
61	WASHER, THRUST - REVERSE GEAR	12-32004
62	BEARING, BALL - REVERSE GEAR	30-20839T
63	SHIM, THRUST WASHER TO GEAR HOUSING	15-20927A1
64	"O" RING, BEARING CARRIER	25-31986
65	BEARING CARRIER ASSEMBLY	53014T1
66	BEARING, ROLLER - BEARING CARRIER	31-20249
67	OIL SEAL, BEARING CARRIER	26-90562
68	KEY, LOCATING - BEARING CARRIER	28-30281
69	WASHER, GEAR HOUSING COVER	12-31993
70	COVER, GEAR HOUSING	11-87763
71	WASHER, BACKING - PROPELLER SHAFT (1/8)	12-25251
72	THRUST HUB AND WASHER ASSEMBLY	38859A1
73	WASHER, CUPPED - THRUST HIB	12-31992
74	WASHER, SPLINED - PROPELLER SHAFT	12-32007
75	NUT, PROPELLER	11-82671120
76	WATER PICKUP, GEAR HOUSING	31237
77	GASKET, WATER PICKUP TO GEAR HOUSING	27-30557
78	SCREW, WATER PICKUP TO GEAR HOUSING	10-30559
79	LOCKWASHER, WATER PICKUP FASTENING SCREW	13-8M0204647
80	NUT, DRIVE SHAFT HOUSING TO GEAR HOUSING STUD (7/16)	11-8M0204653
81	NUT, DRIVE SHAFT HOUSING TO GEAR HOUSING STUD (3/8)	11-23161

GEAR HOUSING ASSEMBLY, COMPLETE(MERC 500M & E) (PAGE 1)

Below is the parts list for Mercury 450 (4 CYL.) GEAR HOUSING ASSEMBLY, COMPLETE(MERC 500M & E) (PAGE 1):

Position No.	Part Name	OEM Number	Supersedes
-	GEAR HOUSING ASSEMBLY, COMPLETE Comment: SEE NOTE BELOW	1603-1868A2
1	GEAR HOUSING ASSEMBLY	1603-1868A1
2	STUD, GEAR HOUSING TO DRIVE SHAFT HOUSING	16-8M0133358
3	BEARING, ROLLER - DRIVE SHAFT	31-62091T
4	SHAFT, SHIFT - LOWER	25136
5	CLIP, RETAINING - SHIFT SHAFT	53-29641
6	BUSHING ASSEMBLY, SHIFT SHAFT	23-46284A1
7	OIL SEAL	26-892361
8	"OIL" RING, SHIFT SHAFT BUSHING	25-25439
9	CAM, LOWER - REVERSE LOCKING	52918
10	CAM, UPPER - REVERSE LOCKING	52919
11	DRIVE SHAFT ASSEMBLY	45-29617A1
12	RING, RETAINING - BALL BEARING	53-29116
13	GEAR, PINION	43-20834
14	TAB WASHER, PINION GEAR SCREW	14-29163
15	SCREW, PINION GEAR TO DRIVE SHAFT	10-20925
16	SHIM, DRIVE SHAFT BEARING TO HSG.	15-20929A1
17	BEARING, BALL - DRIVE SHAFT	30-72961
18	"O"RING, WATER PUMP CARTRIDGE	25-26722
19	WATER PUMP CARTRIDGE ASSEMBLY	46-29117A1
20	OIL SEAL	26-90562
21	INSERT, WATER PUMP CARTRIDGE	28091
22	KEY, WATER PUMP CARTRIDGE	28-28657
23	IMPELLER, WATER PUMP	47-89983T
24	PIN, IMPELLER DRIVE	28-8M0032837	28-56662
25	PLATE, OUTLET - WATER PUMP COVER	20272
26	WATER PUMP COVER ASSEMBLY	20270A2
27	OIL SEAL	26-23517
28	RING, RUBBER - CENTRIFUGAL SLINGER	25-20273
29	"O"RING, UPPER - DRIVE SHAFT	25-29619
30	SCREW, GREASE FILLER AND FLUSHING HOLE	10-79953Q04
31	WASHER, GREASE FILLER AND FLUSHING HOLE SCREW	12-191833
32	SCREW, GEAR HOUSING VENT	10-28653
33	WASHER, GEAR HOUSING VENT SCREW	19643

GEAR HOUSING ASSEMBLY, COMPLETE(MERC 500M & E) (PAGE 2)

Below is the parts list for Mercury 450 (4 CYL.) GEAR HOUSING ASSEMBLY, COMPLETE(MERC 500M & E) (PAGE 2):

Position No.	Part Name	OEM Number
-	GEAR HOUSING ASSEMBLY, COMPLETE Comment: SEE NOTE BELOW	1603-1868A2
1	GEAR HOUSING ASSEMBLY Comment: SEE PAGE 34 FOR PARTS BREAKDOWN	1603-1868A1
34	TUBE, WATER INLET - LOWER	32-23652
35	SLEEVE, WATER INLET TUBE	23-23651
36	SEAL, WATER TUBE	26-20232
37	SCREEN, WATER INTAKE - GEAR HOUSING	35-23654
--	GASKET, WATER INTAKE SCREEN TO GEAR HOUSING Comment: SERIAL 01448240-01460498	27-31367
38	CAM, SHIFT	760394
39	FOLLOWER, CAM	20930
40	SLIDE, CROSS PIN	20843
41	SPRING, CAM FOLLOWER PIN	24-20254
42	SHIM, TAPERED BEARING CUP TO HOUSING	15-31154A1
--	FORWARD GEAR ASSEMBLY, COMPLETE	43-20975A5
43	TAPERED ROLLER BEARING ASSEMBLY	31-31215A1
44	CUP, TAPERED ROLLER BEARING	31-31216
45	FORWARD GEAR ASSEMBLY	43-20975A5
46	BEARING, ROLLER - FORWARD GEAR	31-20249
47	RATCHET, SLIDING CLUTCH	52-32189
48	PIN, CROSS - RATCHET TO PROPELLER SHAFT	17-20841
49	RING, RETAINING - CROSS PIN	53-20842
50	SHAFT, PROPELLER	44-25254
--	REVERSE GEAR ASSEMBLY, COMPLETE	43-20975A5
51	REVERSE GEAR ASSEMBLY	43-20975A5
52	RING, ADAPTOR - BALL BEARING	20864
53	BEARING, BALL - REVERSE GEAR	30-20839T
54	SHIM, ADAPTOR RING TO GEAR HOUSING	15-20927A1
55	"O"RING, BEARING CARRIER	25-20863
56	BEARING CARRIER ASSEMBLY	20862A1
57	BEARING, ROLLER	31-20249
58	OIL SEAL	26-90562
59	WASHER, GEAR HOUSING COVER	12-22970
60	COVER, GEAR HOUSING	20865
61	WASHER, BACKING (1/8)	12-25251
62	PROPELLER ASSEMBLY, COMPLETE (2 BLADE - ALUMINUM)	48-22914A2
63	WASHER, BACKING (1/32)	12-25252
64	TAB WASHER, PROPELLER NUT	14-25250
65	NUT, PROPELLER (ALUMINUM)	11-29825
65	NUT, PROPELLER (NYLON)	11-29825

GEAR HOUSING ASSEMBLY, COMPLETE(MERC 500M-2 & 500E-2) (P. 1)

Below is the parts list for Mercury 450 (4 CYL.) GEAR HOUSING ASSEMBLY, COMPLETE(MERC 500M-2 & 500E-2) (P. 1):

Position No.	Part Name	OEM Number	Supersedes
-	GEAR HOUSING ASSEMBLY, COMPLETE (STANDARD) -SEE NOTE BELOW	1626-2040A3
1	GEAR HOUSING ASSEMBLY	1626-2040A1
2	STUD,WATER PUMP BODY AND BASE TO GEAR HOUSING	16-32027
3	STUD,GEAR HOUSING TO DRIVE SHAFT HOUSING	16-32017
4	BEARING, ROLLER - DRIVE SHAFT	31-62091T
5	SHAFT,SHIFT - LOWER	56622A1
6	CLIP,RETAINING - SHIFT SHAFT	53-29641
7	"O"RING,SHIFT SHAFT BUSHING	25-25439
8	BUSHING ASSEMBLY,SHIFT SHAFT	23-46284A1
9	OIL SEAL,SHIFT SHAF BUSHING	26-892361
10	CAM,LOWER - REVERSE LOCKING	52918
11	CAM,UPPER - REVERSE LOCKING	52919
12	DRIVE SHAFT(STANDARD)	45-38466
13	SHIM,BEARING TO GEAR HOUSING	15-20929A1
14	BEARING,BALL - DRIVE SHAFT	30-72961
15	RING,SNAP - BALL BEARING RETAINING	53-29116
16	SHIM,BEARING TO WATER PUMP BASE	15-20929A1
17	GEAR,PINION - DRIVE SHAFT	43-20834
18	TAB WATER,PINION GEAR FASTENING SCREW	14-29163
19	SCREW, PINION GEAR TO DRIVE SHAFT	10-20925
20	GASKET,WATER PUMP BASE TO GEAR HOUSING	27-32771
21	"O"RING,WATER PUMP BASE	25-26855
22	WATER PUMP BASE ASSEMBLY	46-39531A1
23	OIL SEAL,WATER PUMP BASE	26-90562
24	DOWEL PIN,WATER PUMP BASE TO WATER PUMP BODY	17-29596T
25	GASKET,LOWER - WATER PUMP BASE TO FACE PLATE	27-19553
26	PLATE,FACE - WATER PUMP BASE TO WATER PUMP BODY	32768
27	GASKET,UPPER - FACE PLATE TO WATER PUMP BODY	27-19551
28	IMPELLER,WATER PUMP	47-89983T
29	PIN,IMPELLER DRIVE	28-8M0032837	28-56662
30	WATER PUMP BODY ASSEMBLY	46-60366Q1
31	INSERT,WATER PUMP BODY	32001
32	OIL SEAL,WATER PUMP BODY	26-32121
33	LOCKWASHER,WATER PUMP BODY AND BASE STUDS	13-26992
34	NUT,WATER PUMP BODY AND BASE FASTENING STUDS	11-29598
35	SEAL,WATER PUMP BODY TO WATER INLET TUBE	26-25192
36	RING,RUBBER - CENTRIFUGAL SLINGER(DRIVE SHAFT)	25-20273
37	"O"RING,UPPER - DRIVE SHAFT	25-29619
38	SCREW,GEAR HOUSING FLUSHING HOLE	10-29608
39	GASKET,GEAR HOUSING FLUSHING HOLE SCREW	27-8M0214916
40	SEAL,GEAR HOUSING FLUSHING HOLE	26-8M0214917
41	SCREW,GREASE FILLER AND VENT HOLE	10-79953Q04
42	WASHER,GREASE FILLER AND VENT HOLE SCREW	12-191833

GEAR HOUSING ASSEMBLY, COMPLETE(MERC 500M-2 & 500E-2) (P. 2)

Below is the parts list for Mercury 450 (4 CYL.) GEAR HOUSING ASSEMBLY, COMPLETE(MERC 500M-2 & 500E-2) (P. 2):

Position No.	Part Name	OEM Number
-	GEAR HOUSING ASSY.COMP.(STANDARD)-SEE NOTE BELOW	1626-2040A3
1	GEAR HOUSING ASSEMBLY(SEE PAGE 42 FOR PARTS BREAKDOWN)	1626-2040A1
43	CAM,SHIFT	760394
44	FOLLOWER,CAM	20930
45	SLIDEE,CROSS PIN	20843
46	SPRING,COMPRESSION - CAM FOLLOWER	24-20254
47	SHIM,BEARING CUP TO GEAR HOUSING	15-31154A1
48	FORWARD GEAR ASSEMBLY	43-20975A5
49	BEARING,ROLLER - FORWARD GEAR ASSEMBLY	31-20249
50	TAPARED ROLLER BEARING ASSEMBLY	31-31215A1
51	CUP,TAPERED ROLLER BEARING	31-31216
52	RATCHET,SLIDING CLUTCH	52-32189
53	PIN,CROSS - RATCHET TO PROPELLER SHAFT	17-20841
54	RING,RETAINING - CROSS PIN	53-20842
55	SHAFT,PROPELLER	44-32000
56	REEVERSE GEAR ASSEMBLY	43-20975A5
57	WASHER,THRUST - REVERSE GEAR	12-32004
58	BEARING,BALL - REVERSE GEAR	30-20839T
59	SHIM,THRUSTT WASHER TO GEAR HSG.	15-20927A1
60	"O"RING,BEARING CARRIER	25-31986
61	BEARING CARRIER ASSEMBLY	53014T1
62	BEARING,ROLLER - BEARING CARRIER	31-20249
63	OIL SEAL,BEARING CARRIER	26-90562
64	KEY,LOCATING - BEARING CARRIER	28-30281
65	WASHER,GEAR HOUSING COVER	12-31993
66	COVER,GEAR HOUSING	11-87763
67	WASHER,BACKING - PROPELLER SHAFT(1/8)	12-25251
68	THRUSTT HUB AND WAHSER ASSEMBLY	38859A1
69	WASHER,CUPPED - THRUST HUB	12-31992
70	WASHER,SPLINED - PROPELLER SHAFT	12-32007
71	NUT,PROPELLER	11-82671120
72	TRIM TAB,GEAR HOUSING	97-31640Q4
73	SCREW,TRIM TAB TO GEAR HOUSING	10-32470
74	NUT,DRIVE SHAFT HOUSING TO GEAR HOUSING ST(7/16)	11-8M0204653
75	NUT,DRIVE SHAFT HOUSING TO GEAR HOUSING STUD(3/8)	11-23161

MAGNETO ADAPTOR AND PILOT ASSEMBLY

Below is the parts list for Mercury 450 (4 CYL.) MAGNETO ADAPTOR AND PILOT ASSEMBLY:

Position No.	Part Name	OEM Number	Supersedes
1	MAGNETO ASSEMBLY, COMPLETE (4D-3)	394-2271A2
2	SHAFT, MAGNETO DRIVE	45-27951
-	MAGNETO ADAPTOR AND PILOT ASSEMBLY, COMPLETE	29321A7
3	MAGNETO PILOT ASSEMBLY	39560A1
4	BEARING, BALL-MAGNETO PILOT	30-20066
5	SPRING, HORSESHOE-MAGNETO PILOT	24-27944
6	PIN, ANCHOR- HORSESHOE SPRING TO PILOT	17-27962
7	WASHER, HORSESHOE SPRING TO ANCHOR PIN	12-8M0204649
8	ECONOMISER COLLAR AND PIN ASSEMBLY	27946A1
9	PIN, ECONOMISER COLLAR-SPRING RETAINER	17-27961
10	FITTING, GREASE-ECONOMISER COLLAR	22-25094
11	THROTTLE ACTUATOR ASSEMBLY	38230A1
12	BUSHING, NYLON-THROTTLE ACTUATOR	23-26602
13	SCREW, THROTTLE ACTUATOR TO ECONOMISER COLLAR	10-20665
14	WASHER, THROTTLE ACTUATOR SCREW	12-847883	12-20128
13	SCREW, THROTTLE ACTUATOR TO ECONOMISER COLLAR	10-31009
15	SWIVEL, LINKAGE-ECONMISER COLLAR	27947
16	SWIVEL AND LINK ROD ASSEMBLY	25996A1
17	ADAPTOR, MAGNETO	66856A1
18	FITTING, GREASE-MAGNETO ADAPTOR	22-25094
19	WASHER, MAGNETO PILOT	12-27939
20	TAB WASHER, ADAPTOR CAP FASTENING	14-27960
21	WASHER, WAVE-MAGNETO BALL BEARING TENSION	13-27959
22	CAP, MAGNETO ADAPTOR AND PILOT FASTENING	27955
23	SCREW, ADAPTOR AND PILOT TO MAGNETO	10-30110
24	SCREW, ADAPTOR AND PILOT TO CRANKCASE	10-78841
25	WASHER, ADAPTOR AND PILOT TO CRANKCASE SCREW	12-20084
26	NUT, ADAPTOR AND PILOT TO CRANKCASE SCREW	11-22053
27	PLATE, THROTTLE STOP	53458
28	DECAL, THROTTLE STOP PLATE (STOP ADJUSTMENTS)	37-29315
29	SCREW, THROTTLE STOP ADJUSTING	10-24933
30	NUT, THROTTLE STOP ADJUSTING SCREW	11-20088
31	CAP, NYLON-ADJUSTING SCREW	26852
32	SCREW, THROTTLE STOP PLATE TO ADAPTOR	10-69035
33	KEY, MAGNETO DRIVING	28-28657
34	HUB, DRIVEN PULLEY	29784
35	DRIVEN PULLEY ASSEMBLY	29783A1
36	ROLL PIN. FLANGE LOCATING	17-24873
37	FLANGE, DRIVEN PULLEY	29785
38	WASHER, PULLEY CLAMPING SCREW	12-20138
39	SCREW, PULLEY CLAMPING	10-32228
40	BELT, TIMING	20140
41	ROD, LINK-UPPER	27949
42	NUT, UPPER LINK ROD ADJUSTING	11-25168
43	SWIVEL, UPPER AND LOWER LINKS RODS	27948
44	LEVER, LINKAGE-UPPER	28061
45	LEVER, LINKAGE-LOWER	27941
46	ROD, LINK-LOWER	27950
47	SHAFT, VERTICAL	27940
48	BUSHING, NYLON-VERTICAL SHAFT	23-22981
49	ROLL PIN, VERTICAL SHAFT AND LINKAGE LEVERS	17-25870
50	WASHER, UPPER AND LOWER SWIVEL	12-8M0204649
51	NUT, UPPER AND LOWER SWIVEL TO LEVER AND BRACKET	11-8267089
52	SCREW, SET-LINKAGE LEVER	10-25781
53	WASHER, VERTICAL SHAFT-CENTER	12-25866
54	SPARK PLUG	33-813416
55	PROTECTOR, SPARK PLUG	85-63709A1
56	CABLE, HIGH TENSION LEAD-SPARK PLUG	84-821945A46	84-813706A46, 52615A 1
57	"O" RING, HIGH TENSION HEAD CABLE TO END CAP COVER	25-25429
58	CLIP, HIGH TENSION LEAD CABLE FASTENING	54-29425
59	CLIP, MERCURY SWITCH AND HARNESS LEADS TO MAGNETO	54-25231
60	SCREW, LEAD CLIP TO MAGNETO	10-20401
61	"D" WASHER, CLIP FASTENING SCREW	8M0084613	69205
62	GROUND STRAP ASSEMBLY, MAGNETO TO CRANKCASE	394-1134A1

MAGNETO ASSEMBLY (INTERNAL PARTS)

Below is the parts list for Mercury 450 (4 CYL.) MAGNETO ASSEMBLY (INTERNAL PARTS):

Position No.	Part Name	OEM Number
-	MAGNETO ASSEMBLY, COMPLETE (4D-3)	394-2271A2
1	FRAME, MAGNETO HOUSING	394-1570
2	SCREW, SET- COIL BRIDGE	10-25510
3	LOCKWIRE, COIL BRIDGE SET SCREW	394-1051
4	BEARING, BALL (DRIVE END)	30-24998
5	MAGNETO ROTOR AND SHAFT	394-1067A1
6	BEARING, BALL (OPPOSITE DRIVE END)	30-49090
7	SUPPORT, BALL BEARING	394-1637
8	SCREW AND LOCKWASHER, SUPPORT FRAME	10-25509
9	WIRE ASSEMBLY, PRIMARY GROUNG LEAD	84-60466A13
10	SCREW, PRIMARY GROUND	10,10-29182
11	WASHER, PRIMARY GROUND TERMINAL HOLDING	12-30267
12	INSULATOR, PRIMARY GORUND TERMINAL	394-1579
13	WASHER, INSULATING - PRIMARY GROUNG SCREW	12-29099
14	BUSHING, INSULATING - HOUSING FRAME	23-62769
15	WASHER, PRIMARY GROUND SCREW	12-26014
16	NUT, LOCK - PRIMARY GROUND SCREW	11-24656
17	NUT, PRIMARY GROUND SCREW	11-68219
18	COIL ASSEMBLY	394-1128A1
19	CLIP, COIL - HIGH TENSION	394-1050
20	LOCKWASHER, COIL TERMINAL	13-23836
21	NUT, COIL CLIP FASTENING	394-1131
22	BREAKER ASSEMBLY	393-1504A11
23	GROMMET, PLASTIC - BREAKER BRACKET	393-1586
24	STUD, PRIMARY LEAD AND TENSION SPRING	16-29230
25	NUT, PRIMARY LEAD FASTENING	11-29236
26	HOLDER AND CAM WICK ASSEMBLY	394-1106A1
27	WASHER, BREAKER PIVOT PIN	12-26439
28	COTTER PIN, BREAKER TO PIVOT PIN	18-26953
29	SCREW, BREAKER HOLDER TO HOUSING	10-20597
30	CONDENSER	394-1130A1
31	SCREW AND LOCKWASHER, CONDENSER FASTENING	10-25509
32	GASKET, MAGNETO COVER	27-29166
33	COVER, MAGNETO	394-1577A2
34	SCREW, COVER TO FRAME	10-29418
35	TAB WASHER, COVER FASTENING SCREW	14-29157
36	MAGNETO ROTOR ASEMBLY	394-2602A1
37	CLIP, SPRING	394-1110
38	GASKET, END CAP COVER	27-25725
39	END CAP COVER ASSEMBLY	394-1561A2
40	BRUSH AND SPRING ASSEMBLY	394-1056A1
41	SCREW, HIGH TENSION CABLE FASTENING	10-25517
42	PIPE PLUG, END CAP COVER	29121
43	SCREW, END CAP COVER TO MAGNETO COVER	10-29418
44	TAB WASHER, COVER FASTENING SCREW	14-29157
45	ELBOW, PLASTIC - MAGNETO COVER VENT	22-996642

STARTER MOTOR, STARTER SOLENOID, RECTIFIER AND WIRING HARNES

Below is the parts list for Mercury 450 (4 CYL.) STARTER MOTOR, STARTER SOLENOID, RECTIFIER AND WIRING HARNES:

Position No.	Part Name	OEM Number	Supersedes
1	RECTIFIER ASSEMBLY	32177A2	29691
2	LOCKWASHER, RECTIFIER MOUNTING SCREW	13-8M0204647
3	NUT, RECTIFIER MOUNTING SCREW	11-21929
4	SLEEVE, RECTIFIER LEADS	32-28373
5	SCREW, HARNESS AND STATOR LEADS TO RECTIFER	10-35400
6	NUT, HARNESS AND STATOR LEAD FASTENING SCREW	11-8M0204718
7	RECTIFIER ASSEMBLY	32177A2	29691
8	SLEEVE, RECTIFIER ( RED LEAD WIRE )	32-61115
9	DISCONNECT, KNIFE - RECTIFIER LEAD WIRE	22647
10	BLOCKWASHER, RECTIFIER MOUNTING SCREW	13-8M0204647
11	NUT, RECTIFIER MOUNTING SCREW	11-21929
12	BRACKET, RECTIFIER MOUNTING	28597
13	SCREW, RECTIFIER BRACKET TO BOTTOM COWL	10-21091
14	NUT, BRACKET MOUNTING SCREW	11-24652
15	STARTER MOTOR (DELCO-REMY) SEE NOT BELOW	50-32411
15	STARTER MOTOR (DELCO-REMY) SEE NOT BELOW	50-55601A2
16	SCREW, STARTER MOTOR TO CRANKCASE FLANGE	10-22698
17	LOCKWASHER, STARTER MOTOR MOUNTING SCREW	13-8M0204647
18	WIRE, STARTER MOTOR TO STARTER SOLENOID	84-93389A12
19	SCREW, GROUND WIRE TO STARTER MOTOR	10-69035
20	LOCKWASHER, GROUND WIRE FASRENING SCREW	13-26992
21	GROUND STRAP ASSEMBLY	28016A1
22	STARTER SOLENOID	32445A1
22	STARTER SOLENOID	32445A1
23	LOCKWASHER, SOLENOID TERMINAL	10,13-26996
24	NUT, SOLENOID TERMINAL	10,11-68219
25	LOCKWASHER, SOLENOID (5/16)	13-8M0204647
26	NUT, SOLENOID TERMINAL - INSIDE (5/16)	11-22053
27	NUT, CAP - SOLENOID TERMINAL - OUTSIDE (5/16)	11-26062
28	SCREW, STARTER SOLENOID TO STARTER MOTOR	10-29238
29	CLAMP, HARNESS LEAD WIRE (1/4)	54-24836
30	CLAMP, HARNESS LEAD WIRE (3/8)	54-22740
30	CLAMP, HARNESS LEAD LEAD WIRE (1/8)	54-25231
31	"D" WASHER, CLAMP FASTENING SCREW	8M0084613	69205
32	SCREW, HARNESS LEAD WIRE FASTENING	10-8M0113176
33	WIRING HARNESS ( INTERNAL )	33401
33	WIRING HARNESS (INTERNAL)	33401
34	PLATE, BACKING - WIRING HARNESS	26079A2
35	SCREW. BACKING PLATE TO BOTTOM COWL	10-45893
36	SPRING, GARTER - INTERNAL WIRING HARNESS	24-28975
37	"S" CLIP, WIRING HARNING LEAD TO BOTTOM COWL	54-22783

TOP COWL AND STARTER ASSEMBLY

Below is the parts list for Mercury 450 (4 CYL.) TOP COWL AND STARTER ASSEMBLY:

Position No.	Part Name	OEM Number
1	TOP COWL ASSEMBLY	177-2355A3
1	TOP COWL ASSEMBLY	177-2355A4
2	STUD, REAR - TOP COWL TO COVER	16-20500
3	STUD, FRONT - TOP COWL TO CRANKCASE	16-20353
4	GROMMET, CHOKE KNOB	25-20116
5	SCREEN, VENT - TOP COWL	28967
6	SCREW, VENT SCREEN TO TOP COWL	10-26668
7	TRIM MOULDING ASSEMBLY, TOP COWL	29228A1
8	SCREW, DECORATIVE - MOULDING TO TOP COWL	10-29226
9	SCREW, BRASS - MOULDING TO TOP COWL	10-29227
10	LOCKWASHER, MOULDING FASTENING SCREW	13-26995
11	NUT, MOULDING FASTENING SCREW	11-26419
--	DECAL SET, TOP COWL	37-46023A1
12	SPACER, TOP COWL STUD	23-20326
13	WASHER, TOP COWL STUD (1/16")	12-20028
14	WASHER, TOP COWL STUD (3/4" OD)	12-69057
14	WASHER, TOP COWL STUD (3/4" OD)	12-69057
15	WASHER, TOP COWL STUD (1/32")	12-20583
16	NUT, TOP COWL FASTENING	11-8267089
17	RETAINER, STARTER SPRING	20155
18	SPRING, STARTER REWIND	24-29340T02
19	BUSHING, SPRING GUIDE	23-28912
20	SHEAVE ASSEMBLY	50-28908
21	PAWL, STARTER	20162
22	WASHER, WAVE - STARTER PAWL	13-29402
20	SHEAVE ASSEMBLY Comment: SEE NOTE BELOW	50-30994
21	PAWL, STARTER Comment: SEE NOTE BELOW	30596
22	WASHER, WAVE - STARTER PAWL Comment: SEE NOTE BELOW	13-36206
23	BUSHING, NYLON - SHEAVE SHAFT SPACER	23-28919
24	SPACER, SHEAVE SHAFT	45477A1
25	RETAINER, WAVE WASHER	26179
26	WASHER, WAVE WASHER RETAINER	12-26180
27	WASHER, WAVE - RETAINER TENSION	13-20160
28	PLATE, RETAINER - STARTER PAWL	20164
28	PLATE, RETAINER - STARTER PAWL Comment: SEE NOTE BELOW	30595
29	SHAFT, SHEAVE	45477A1
30	STARTER CABLE ASSEMBLY	50-12066Q10
31	HANDLE, STARTER CABLE	28747
32	RETAINER, STARTER CABLE AND HANDLE	79470A1
33	PLATE, ROPE GUIDE	30045
34	SCREW, DRIVE, ROPE GUIDE PLATE TO TOP COWL	10-28642
35	TAB WASHER, SHEAVE SHAFT NUT	14-20165
36	NUT, SHEAVE SHAFT (LEFT HAND THREAD)	11-20166
37	HANDLE, CHROME - TOP COWL	31875
37	HANDLE, CHROME - TOP COWL	31875
38	HANDLE, INSIDE - TOP COWL	31003
39	PAD, BUMPER - TOP COWL HANDLE	31119
40	WASHER, LOWER HANDLE STUD (3/4" OD)	12-69057
41	WASHER, CENTER HANDLE STUD (1/2" OD)	12-8M0204649
42	NUT, INSIDE HANDLE TO CHROME HANDLE STUDS	11-21825
43	SCREW, FRONT - HANDLE TO TOP COWL (1 1/4")	10-56500
44	NUT, FRONT HANDLE FASTENING SCREW	11-8267089
45	SCREW, CENTER - HANDLE TO TOP COWL (1")	10-29199
46	SPACER, REAR HANDLE STUD	23-29561
47	LOCKWASHER, REAR HANDLE STUD	13-26992
48	NUT, REAR HANDLE STUD	11-21825

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Mercury / Mercruiser / Mariner Parts from JLM Marine

About JLM Marine

Founded in 2002, JLM Marine has established itself as a dedicated manufacturer of high-quality marine parts, based in China. Our commitment to excellence in manufacturing has earned us the trust of top marine brands globally.

As a direct supplier, we bypass intermediaries, which allows us to offer competitive prices without compromising on quality. This approach not only supports cost-efficiency but also ensures that our customers receive the best value directly from the source.

We are excited to expand our reach through retail channels, bringing our expertise and commitment to quality directly to boat owners and enthusiasts worldwide.