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Mercury 4 HP (1 CYL. PRODUCT OF USA) (7143688 & Up) Outboard Motor Parts Diagram & Catalog – Free PDF Download

by JLM Marine 22 Apr 2025 0 Comments
Mercury 4 HP (1 CYL. PRODUCT OF USA) Outboard Motor Parts Diagram & Catalog – Free PDF Download

BOTTOM COWL ASSEMBLY

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) BOTTOM COWL ASSEMBLY:

Mercury 4 HP (1 CYL. PRODUCT OF USA) BOTTOM COWL ASSEMBLY Diagram
Position No. Part Name OEM Number Supersedes
1 BOTTOM COWL 187-7711A4
2 LEVER ASSEMBLY, CLAMPING - PORT 36187A1
3 LEVER ASSEMBLY, CLAMPING - STARBOARD 36188A1
4 FASTENER, CLAMPING LEVER 53-55891
5 STRAP ASSEMBLY, Ground 84-60871A7
6 SPRING, GROUNG STRAP 24-63399
7 BUSHING, NYLON - CLAMPING LEVER 23-26819
8 BUSHING, RUBBER - CLAMPING LEVER 23-31293
9 PIN, Roll (.164 x .750), CLAMPING LEVER 17-58997
10 SCREW, (.375-16 x .250), BOTTOM COWL FLUSHING HOLE 10-79953Q04
11 WASHER, BOTTOM COWL FLUSHING HOLE SCREW 12-191833
12 NOZZLE, TELL TALE 56712
13 SCREW, (#10-16 x .500), TELL TALE NOZZLE TO BOTTOM COWL 10-35519
14 HOSE, TELL TALE (7-1/4") 32-8M0108355 32-8M0047428, 32-830756109, 32-99127109, 32-877821
15 ELBOW, TELL TALE - HOSE TO CYLINDER BLOCK 22-996642
16 GASKET 27-89937
17 GASKET 27-55847
18 COVER, EXHAUST RELIEF 55936
19 SCREW, (#10-16 x .440) 10-69079
20 SWITCH ASSEMBLY, Stop 87-69508A31
21 COVER ASSEMBLY 87-99525A1
22 LOCKWASHER 13-69845
23 NUT, STOP SWITCH 11-69844
24 SWITCH ASSEMBLY, Stop 87-11083A9
25 RETANER 8M0032846 12044 1 TOGGLE SWITCH
26 LANYARD ASSEMBLY 15920Q54
- GASKET SET 27-78139A80

CARBURETOR ASSEMBLY(TILLOTSON)

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) CARBURETOR ASSEMBLY(TILLOTSON):

Mercury 4 HP (1 CYL. PRODUCT OF USA) CARBURETOR ASSEMBLY(TILLOTSON) Diagram
Position No. Part Name OEM Number Supersedes
1 CARBURETOR ASSEMBLY, COMPLETE 1341-8740A1
2 FLOAT ASSEMBLY 1395-8673
3 NOT SOLD SEPARATE, Pin-Float Lever Pinion NSS
4 NOT SOLD SEPARATE, Float Lever-Lower NSS
5 NOT SOLD SEPARATE, Float Lever-Upper NSS
6 NEEDLE/SEAT KIT, Inlet, SEAT AND GASKET 1395-92581
7 NOT SOLD SEPARATE, Gasket-Inlet Seat NSS
8 NOT SOLD SEPARATE, Gasket-Float Bowl Cover NSS
9 COVER, FLOAT BOWL 1399-1133
10 SCREW, FLOAT BOWL (SHORT) 10-52195
11 SCREW, FLOAT BOWL COVER (LONG) 10-52196
12 LOCKWASHER, Stainless Steel, FLOAT BOWL COVER SCREW 8,13-26995
13 NOT SOLD SEPARATE, Gasket-Strainer cover (Large) NSS
14 SCREEN, FILTER 1399-3938
15 NOT SOLD SEPARATE, Gasket, Strainer cover (Small) NSS
16 COVER, STRAINER (90 DEGREES) 1399-1135
17 NOT SOLD SEPARATE, Gasket, Strainer cover Screw NSS
18 SCREW, STRAINER COVER 10-25822
19 SCREW, THROTTLE STOP LEVER 1395-6027
20 LEVER, THROTTLE STOP 8146791
21 SHAFT 1399-1716
22 NOT SOLD SEPARATE, Idle Tube NSS
23 NOT SOLD SEPARATE, Gasket, Idle tube NSS
24 NOT SOLD SEPARATE, Screw-throttle Shutter NSS
25 SHUTTER 1399-3739
26 NOT SOLD SEPARATE, Welch Plug, Body Channel NSS
27 NOT SOLD SEPARATE, Spring, throttle shaft return NSS
28 SCREW, PLUG-BODY CHANNEL 10-28845
29 NOT SOLD SEPARATE, Main Nozzle NSS
30 SCREW, PLUG-MAIN NOZZLE 10-23178
31 JET, (.032), MAIN FUEL 1399-3252
31 JET, (.034), MAIN FUEL 1399-3251
31 JET, (.036), MAIN FUEL-STANDARD 1399-3026
31 JET, Main Fuel (.039) 1399-2407
31 JET, MAIN FUEL (.041) 1399-1896
32 NOT SOLD SEPARATE, Gasket-Main Fuel Jet NSS
33 NOT SOLD SEPARATE, Gasket, Jet Channel Plug Screw NSS
34 SCREW, PLUG-MAIN FUEL JET CHANNEL 10-28405
35 SCREW, IDLE ADJUSTMENT 1399-3740
36 NOT SOLD SEPARATE, Spring, Idle Adjustment Screw NSS
37 GASKET, CARBURETOR TO REED BLOCK 27-63309
38 WASHER, CARBURETOR MOUNTING STUD 12-20583
39 NUT, (.250-28), CARBURETOR MOUNTING STUD 11-24652
- GASKET SET 1399-1717
- REPAIR PARTS KIT 1395-92621

CARBURETOR ASSEMBLY(WALBRO)

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) CARBURETOR ASSEMBLY(WALBRO):

Mercury 4 HP (1 CYL. PRODUCT OF USA) CARBURETOR ASSEMBLY(WALBRO) Diagram
Position No. Part Name OEM Number Supersedes
1 CARBURETOR, COMPLETE 1341-8740A1
2 FLOAT ASSEMBLY 1395-8673
3 NOT SOLD SEPARATE, Pin, float lever pinion NSS
4 NOT SOLD SEPARATE, Lever, float (Lower) NSS
5 NOT SOLD SEPARATE, Lever, float (Upper) NSS
6 NEEDLE, Inlet, SEAT AND GASKET 1395-83181
7 NOT SOLD SEPARATE, Gasket, inlet seat NSS
8 NOT SOLD SEPARATE, Gasket, float bowl cover NSS
9 COVER, FLOAT BOWL 1399-1133
10 SCREW, FLOAT BOWL COVER (SHORT) 10-52195
11 SCREW, FLOAT BOWL COVER (LARGE) 10-52196
13 NOT SOLD SEPARATE, Gasket, strainer cover (Large) NSS
14 SCREEN, FILTER 1399-3938
15 NOT SOLD SEPARATE, Screen, filter NSS
16 COVER, STRAINER (90 DEGREE) 1399-1135
17 NOT SOLD SEPARATE, Gasket, strainer cover screw NSS
18 SCREW, STRAINER COVER 10-25822
19 SCREW, THROTTLE STOP LEVER 1395-6027
20 LEVER, THROTTLE STOP 8146791
21 SHAFT 1399-1716
22 NOT SOLD SEPARATE, Idle Tube NSS
23 NOT SOLD SEPARATE, Gasket, idle tube NSS
24 NOT SOLD SEPARATE, Screw, throttle shutter NSS
25 SHUTTER 1399-3739
26 NOT SOLD SEPARATE, Welch Plug, body channel NSS
27 NOT SOLD SEPARATE, Spring, throttle shaft return NSS
28 NOT SOLD SEPARATE, Screw, plug - body channel NSS
30 NOT SOLD SEPARATE, Screw, plug - main nozzle NSS
31 JET, (.032), MAIN FUEL 1399-3252
31 JET, (.034), MAIN FUEL - STANDARD 1399-3251
31 JET, (.036), MAIN FUEL 1399-3026
31 JET, Main Fuel (.039), MAIN FUEL 1399-2407
31 JET, MAIN FUEL (.041) 1399-1896
33 NOT SOLD SEPARATE, Gasket, jet channel plug screw NSS
34 NOT SOLD SEPARATE, Screw, plug - main fuel jet channel NSS
35 SCREW, IDLE ADJUSTMENT 1399-3740
36 NOT SOLD SEPARATE, Spring, idle adjustment screw NSS
37 GASKET, CARBURETOR TO REED BLOCK 27-63309
38 WASHER, CARBURETOR MOUNTING STUD 12-20583
39 NUT, (.250-28), CARBURETOR MOUNTING STUD 11-24652
- GASKET SET 1399-1717
- REPAIR PARTS KIT 1395-9019

CARBURETOR CHOKE LINKAGE

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) CARBURETOR CHOKE LINKAGE:

Mercury 4 HP (1 CYL. PRODUCT OF USA) CARBURETOR CHOKE LINKAGE Diagram
Position No. Part Name OEM Number Supersedes
1 LEVER, Throttle 59000
2 SCREW, (#8-32 x .380) 10-20597
3 SHUTTER AND SCREEN, CHOKE - CARBURETOR 79092
4 SPRING, CHOKE SHUTTER TO LEVER 24-53193
5 SPRING ASSEMBLY, CARBURETOR 24-55299A1
6 SCREW, (#10-32 x .580), SPRING TO CARBURETOR 10-55298
7 LEVER 53187
8 SPRING, TENSION - CHOKE KNOB 24-53190
9 KNOB 53189

CLAMP BRACKET ASSEMBLY

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) CLAMP BRACKET ASSEMBLY:

Mercury 4 HP (1 CYL. PRODUCT OF USA) CLAMP BRACKET ASSEMBLY Diagram
Position No. Part Name OEM Number Supersedes
1 CLAMP BRACKET ASSEMBLY (PORT) 1468-5570A3
2 CLAMP BRACKET ASSEMBLY (STARBOARD) 1467-5571A3
3 THUMB SCREW ASSEMBLY 10-77190A3
4 SCREW, THUMB SCREW 10-768042
5 WASHER, THUMB SCREW 12-73719
6 WASHER, Nylon, TILT TUBE - CLAMP TO SWIVEL BRACKET 12-71421
7 TILT TUBE, CLAMP TO SWIVEL BRACKET 96962
8 PLUG, TILT TUBE 19-39333
9 NUT, (.875), TILT TUBE FASTENING 11-93164
10 HANDLE, CARRYING 71420
11 STUD, CLAMP BRACKET 16-71417
12 LOCKWASHER, (.250) Stainless Steel, CLAMP BRACKET STUD 13-26992
13 NUT, (.250-28) Stainless Steel, CLAMP BRACKET STUD 11-29598
14 PIN ASSEMBLY, Tilt Lock 17-71418A2
15 SPRING, TILT LOCK PIN 24-62143
16 BOLT, CLAMP BRACKET TO BOAT 10-67982
17 WASHER, CLAMP BRACKET SCREW 12-67983
18 NUT, (.250-20), CLAMP BRACKET SCREW 11-8267098

CRANKSHAFT, PISTON AND CONNECTING ROD

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) CRANKSHAFT, PISTON AND CONNECTING ROD:

Mercury 4 HP (1 CYL. PRODUCT OF USA) CRANKSHAFT, PISTON AND CONNECTING ROD Diagram
Position No. Part Name OEM Number Supersedes
1 CRANKSHAFT ASSEMBLY 427-7334A2
2 CARRIER ASSEMBLY 79952A1
3 O-RING, (.362 x .103) 25-62704
4 KEY, Woodruff, CRANKSHAFT 28-20094
5 CONNECTING ROD ASSEMBLY 608-7395A2
6 SCREW, (.250-28 x 1.030), CONNECTING ROD 10-87374
7 BEARING, Needle, CRANKPIN 29-26815
8 NUT, CONNECTING ROD SCREW 11-20061
9 WASHER, NEEDLE BEARING RETAINING 12-65967
10 BEARING, Needle, PISTON PIN 29-31505
11 PISTON ASSEMBLY 719-7391T3
12 LOCK RING, PISTON PIN 40-21666
13 RING SET, Piston 39-21665A12
- GASKET SET 27-78139A80

CYLINDER BLOCK AND CRANKCASE ASSEMBLY

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) CYLINDER BLOCK AND CRANKCASE ASSEMBLY:

Mercury 4 HP (1 CYL. PRODUCT OF USA) CYLINDER BLOCK AND CRANKCASE ASSEMBLY Diagram
Position No. Part Name OEM Number Supersedes
1 CYLINDER BLOCK 843-8694A3
2 STUD 16-66021
3 PIN, Dowel (.187 x .530), CRANKCASE TO CYLINDER BLOCK 17-8M0084726 17-85500
4 FITTING, BLEED DRAIN 22-89275
5 TUBING, (36.00 Inches Bulk), BLEED DRAIN 32-9912688
6 CLAMP, BLEED HOSE ATTACHING 54-68424
7 ELBOW, Tell-Tale Tubing, BLEED DRAIN 22-887801
8 SCREW, CRANKCASE TO CYLINDER BLOCK (1-1/2") 10-73280
9 SCREW, CRANKCASE TO CYLINDER BLOCK (1") 10-76621
10 REED BLOCK 70726
11 REED, INLET VALVE 34-35836
12 RETAINER, REED 34-22215
13 SCREW, (#6-32 x .25) 10-28430
14 GASKET, REED BLOCK TO CRANKCASE 27-357391
15 BEARING, Ball, CRANKCASE (LOWER) 30-72961
16 SEAL, Oil, CRANKCASE (LOWER) 26-56397
17 SHIM 15-31412A1
18 HOUSING ASSEMBLY, Bearing, UPPER 1132-6352A1
19 BEARING, Ball, UPPER BEARING HOUSING 30-72961
20 BEARING, Roller, UPPER BEARING HOUSING 31-31410
21 SEAL, Oil, UPPER BEARING HOUSING 26-66301
22 O-RING, UPPER BEARING HOUSING 25-20863
23 CLAMP, HOLD DOWN 54-34598
24 SCREW, (#10-24 x .563) 10-36205
25 SPRING, HOLD DOWN RING CLAMP 24-34731
26 SCREW (1/2") 10-39002
27 COVER, TRANSFER COVER 35658
28 GASKET, TRANSFER PORT COVER 27-35657
29 SCREW, (.190-24 x .62) 10-20720
30 COVER ASSEMBLY, CYLINDER BLOCK 1016-7070A1
31 MOUNT, RUBBER - COVER TO TOP COWL 66019
32 LOCKWASHER, RUBBER MOUNT 13-20202
33 NUT, (.312-24), RUBBER MOUNT TO COVER 11-22053
34 GASKET, COVER TO CYLINDER BLOCK 27-416151
35 SCREW, (.250-20 x 1.00) 10-8M0214943
36 GASKET, CYLINDER BLOCK TO BAFFLE PLATE 27-416141
37 PLATE, BAFFLE - EXHAUST MANIFOLD 46234
38 GASKET 27-416141
39 COVER, EXHAUST MANIFOLD 46171
40 SCREW, (.250-20 x .750) 10-49668
- GASKET SET 27-78139A80
- POWERHEAD ASSEMBLY 87096A79

DRIVESHAFT HOUSING ASSEMBLY

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) DRIVESHAFT HOUSING ASSEMBLY:

Mercury 4 HP (1 CYL. PRODUCT OF USA) DRIVESHAFT HOUSING ASSEMBLY Diagram
Position No. Part Name OEM Number Supersedes
1 HOUSING ASSEMBLY, Driveshaft 1538-8456A1
1 HOUSING ASSEMBLY, Driveshaft 1542-8452A1
2 STUD, DRIVE SHAFT HOUSING TO GEAR HOUSING 16-66373
3 NUT, (.312-24) Stainless Steel, DRIVE SHAFT HOUSING STUD 11-82670911
4 NUT, (.375-24), GEAR HOUSING STUD 11-8M0204726
5 SADDLE 1539-8450A1
6 BUMPER, THRUST - SADDLE 64076
7 MOUNT, LOWER 79896A1
7 MOUNT, LOWER 79896A1
8 MOUNT ASSEMBLY, UPPER 79985A1
8 MOUNT, UPPER 79896A1
9 RING, UPPER AND LOWER MOUNT 53-26406
10 COVER, UPPER AND LOWER MOUNT 79907
11 GASKET 27-59079
12 NUT, (.250-28) 11-24652
13 TUBE, WATER OUTLET 32-31940
13 TUBE, WATER OUTLET 32-32077
14 SEAL, (.500 Inch Outside Diameter), RUBBER - WATER OUTLET TUBE 26-36556
15 SPACER, NYLON - OUTLET TUBE SEAL 23-13127
16 LINK ROD, REVERSE LOCK 71057
17 SCREW 10-65414
18 CAM, REVERSE LOCK 65216
19 RETAINER, REVERSE LOCK CAM 72007
20 BLOCK, DRIVESHAFT 93145
- GASKET SET 27-78139A80

FLYWHEEL AND IGNITION COMPONENTS

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) FLYWHEEL AND IGNITION COMPONENTS:

Mercury 4 HP (1 CYL. PRODUCT OF USA) FLYWHEEL AND IGNITION COMPONENTS Diagram
Position No. Part Name OEM Number Supersedes
1 FLYWHEEL ASSEMBLY 236-4475A1
2 WASHER, FLYWHEEL NUT 12-36245
3 NUT, FLYWHEEL 11-20696
4 WASHER, WAVE-CAM TENSION 13-35629
5 CAM 336-4465
6 COVER ASSEMBLY 336-4524A1
7 SCREW, (#8-32 x .620), COVER TO MODULE 10-60491
8 IGNITION MODULE ASSEMBLY 336-4516A2
9 SCREW, MODULE TO STATOR (9/16") 10-59800
10 SCREW, MODULE-COIL LEAD (1/4") 10-36046
11 LOCKWASHER, Stainless Steel, MODUEL TERMINALS 10,13-26996
12 NUT, Brass, MODULE TERMINALS 10-32,11-45076
13 COIL ASSEMBLY 336-4470A1
13 COIL ASSEMBLY 336-4469A1
14 CLIP, COIL RETAINING 54-59538
15 CLIP, COIL RETAINING 54-59539
16 CONDENSER ASSEMBLY 336-4463
17 SCREW, (#10-32 x .437), CONDENSER ATTACHING 10-62269
18 STATOR ASSEMBLY 336-4476A6
19 PLATE, STATOR HOLD DOWN 336-4458
20 SCREW, HOLD DOWN PLATE TO STATOR (7/16") 10-35400
21 SHIM, STATOR PLATE TO UPPER END CAP 15-33910015
22 WICK, CAM WIPER 336-3989
23 MAKER ASSEMBLY, STATOR HOUSING 336-4318A2
24 SCREW, MAKER TO STATOR HOUSING (3/8") 10-56266
25 CAM 56520
26 SCREW, (.250-20 x .620), THROTTLE CAM TO CONTACT HOUSING 10-69054
27 WASHER, THROTTLE CAM ATTACHING SCREW 12-37998
28 WIRE ASSEMBLY, Jumper (BLACK-4-1/4") 56757A5
29 LEAD ASSEMBLY (GREEN-12-1/4") 56318A11
30 BOOT, LEAD ASSEMBLY 38938
31 CABLE ASSEMBLY, STATOR HOUSING (WHITE-103/4") 56316A4
32 BOOT, CABLE 38938
33 INSULATOR, CABLE TO CONTACT HOUSING 336-4460
34 NUT, CABLE INSULATOR 11-56325
35 COIL ASSEMBLY, Ignition 336-4528T2
36 LOCKWASHER, Stainless Steel, IGNITION COIL TERMINAL 10,13-26996
37 NUT, Brass, IGNITION COIL TERMINAL 10-32,11-45076
38 COVER 66355
39 SCREW 10-61530
40 NUT AND LOCKWASHER, , COIL COVER SCREW 10-32,11-27164
41 LEAD ASSEMBLY, HIGH TENSION 84-813715A1
42 BOOT, IGNITION COIL 332-2854T01
43 BOOT/TERMINAL KIT, SPARK PLUG 85-63709A1
44 SPARK PLUG (NGK #BUHW-2) 33-896329833 33-833C
44 SPARK PLUG 33-14103Q

FUEL PUMP AND FUEL LINES

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) FUEL PUMP AND FUEL LINES:

Mercury 4 HP (1 CYL. PRODUCT OF USA) FUEL PUMP AND FUEL LINES Diagram
Position No. Part Name OEM Number Supersedes
1 PUMP ASSEMBLY, Fuel 89977A1
2 LINE, (57.00 Inches Bulk) 32-8M0108355 32-8M0047428, 32-830756109, 32-99127109, 32-877821
3 CLAMP, FUEL LINE 54-68424
4 FITTING, FUEL LINE TO CARBURETOR 22-19688
5 FITTING, FUEL LINE TO ADAPTOR 22-98750
6 TUBING, FUEL PUMP TO CYLINDER BLOCK 32-9912878
7 ELBOW, HOSE TO CYLINDER BLOCK (90 DEGREE) 22-33373001
8 CLAMP, FUEL PUMP HOSE TO ELBOWS 54-68424
9 WASHER, ADAPTOR 30188
10 SPRING, ADAPTOR STEM 24-23067T
11 O-RING, ADAPTOR STEM 25-16524
12 STEM, CHECK UNIT ADAPTOR 23069
13 ADAPTOR, CHECK UNIT 22833
14 SCREW, (.250-28 x 1.250) 10-37923
15 NUT, (.250-28), ADAPTOR SCREW 11-24652
- GASKET SET 27-78139A80

GEAR HOUSING(DRIVESHAFT)

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) GEAR HOUSING(DRIVESHAFT):

Mercury 4 HP (1 CYL. PRODUCT OF USA) GEAR HOUSING(DRIVESHAFT) Diagram
Position No. Part Name OEM Number Supersedes
- GEAR HOUSING ASSEMBLY, COMPLETE 1630-7360A29
- GEAR HOUSING ASSEMBLY, COMPLETE 1630-7360A30
1 GEAR HOUSING ASSEMBLY 1630-7360A11
2 STUD, GEAR HOUSING (3-1/2") 16-58138
3 STUD, WATER PUMP HOUSING (2-3/4") 16-58136
4 BEARING, Roller, DRIVE SHAFT 31-22756
5 PIN, Dowel, LOCATING 17-20032
6 SEAL, RUBBER - WATER INTAKE TUBE 26-33613
7 BEARING, NYLON - INTAKE TUBE SEAL 23-86215
8 SCREEN, WATER INTAKE 35-33425
9 SCREW, WATER INTAKE SCREEN 10-25612
10 GEAR, Pinion 43-98696
11 TAB WASHER, PINION GEAR SCREW 14-30377
12 SCREW, (#12-28 x .750), PINION GEAR TO DRIVE SHAFT 10-30376
13 DRIVESHAFT 45-95873A1
13 DRIVESHAFT 45-95874A1
14 SHIM ASSEMBLY, BALL BEARING (.002-3-5-10) 15-30527A1
15 BEARING, Ball, DRIVE SHAFT 30-70944
16 RING, Retaining, BALL BEARING 53-30523
17 SHIM ASSEMBLY, BALL BEARING (.002-3-5-10) 15-30527A1
18 HOUSING ASSEMBLY, Water Pump 46-70941T01
18 HOUSING ASSEMBLY, Water Pump 46-92970A1
19 O-RING 25-29439
20 SEAL, Oil 26-30900T
20 SEAL, Oil 26-897153 26-96063 (USE WITH 47-89980 IMPELLER)
21 INSERT 70977T
22 SEAL, WATER INTAKE TUBE 26-33613
23 TUBE, WATER INTAKE 32-34293
24 KEY, IMPELLER DRIVE 28-8M0032835 28-56655
25 IMPELLER 47-89981
25 IMPELLER 47-89980
26 FACE PLATE, WATER PUMP 46895
27 COVER ASSEMBLY, Water Pump 93224A1
28 SEAL, WATER PUMP COVER 26-36558
30 SEAL, Oil, WATER PUMP COVER 26-30913
31 WASHER 12-20533
32 NUT, (.250-28), WATER PUMP HOUSING STUD 11-8267119
33 RING, RUBBER - CENTRIFUGAL SLINGER 25-30526
34 SLEEVE, GUIDE - INLET TUBE 23-31792T
- GASKET SET 27-78139A80
- REPAIR KIT, Water Pump 46-70941A3
- REPAIR KIT, Water Pump 46-92970A5
- SEAL KIT, Water Pump 26-77066A1

GEAR HOUSING(PROPELLER SHAFT)

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) GEAR HOUSING(PROPELLER SHAFT):

Mercury 4 HP (1 CYL. PRODUCT OF USA) GEAR HOUSING(PROPELLER SHAFT) Diagram
Position No. Part Name OEM Number Supersedes
- GEAR HOUSING ASSEMBLY, COMPLETE 1630-7360A29
- GEAR HOUSING ASSEMBLY, COMPLETE 1630-7360A30
1 GEAR HOUSING ASSEMBLY 1630-7360A11
36 SCREW, (.375-16 x .250), GREASE FILLER HOLE 10-79953Q04
37 WASHER, GREASE FILLER HOLE SCREW 12-191833
38 SCREW, (#10-32 x 0.25), GREASE VENT HOLE 10-28653
39 WASHER, GREASE VENT HOLE SCREW 19643
40 SHIFT SHAFT ASSEMLBY, SHIFT 71659A1
40 SHIFT SHAFT ASSEMBLY, SHIFT 71658A1
41 RING, Retaining, SHIFT SHAFT 53-22899
42 BUSHING ASSEMBLY, SHIFT SHAFT 23-30676A1
43 O-RING, (.424 x .103), SHIFT SHAFT BUSHING 25-26802
44 SEAL, Oil, SHIFT SHAFT BUSHING 26-30696
45 SCREW, (#10-24 x .500) 10-39149
46 CAM 44434
47 SHIM ASSEMBLY (.002-3-5-10) 15-30522A1
48 BEARING, Ball, FORWARD GEAR 30-21889
49 GEAR ASSEMBLY, Forward 43-48577A3
50 BEARING, Roller, FORWARD GEAR 31-22458
51 RATCHET, SLIDING CLUTCH 52-63314
52 PIN, Cross, RATCHET TO PROPELLER SHAFT 17-30535
53 RING, Retaining, CROSS PIN 53-32449
54 FOLLOWER 31334
55 SPRING, COMPRESSION - CAM FOLLOWER 24-76298
56 PROELLER SHAFT ASSEMBLY 44-75667A2
57 GEAR, Reverse 43-63316
58 SLEEVE, THRUST - REVERSE GEAR 71479
59 SHIM ASSEMBLY (.002-3-5-10) 15-30532A1
60 BEARING, Ball, REVERSE GEAR 30-21889
61 O-RING, (1.925 x .103), BEARING CARRIER 25-30529
62 CARRIER ASSEMBLY, Bearing 72673T1
63 BEARING, Roller, BEARING CARRIER 31-22458
64 SEAL, Oil, BEARING CARRIER 26-66022
65 COVER, GEAR HOUSING 86236
66 COLLAR, PROPELLER 86665A1
67 PROPELLER ASSEMBLY 48-63494A10
67 PROPELLER ASSEMBLY 48-63494A10
68 SPACER, SPLINED - PROPELLER NUT 11-64075A1
69 NUT 11-64075A1
- GASKET SET 27-78139A80

MISCELLANEOUS PARTS/ACCESSORIES

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) MISCELLANEOUS PARTS/ACCESSORIES:

Mercury 4 HP (1 CYL. PRODUCT OF USA) MISCELLANEOUS PARTS/ACCESSORIES Diagram
Position No. Part Name OEM Number Supersedes
- PARTS MANUAL, 4/4.5 Hp 90-90694
- OPERATOR MANUAL 90-11085870
- GASKET SET 27-78139A80
- DECAL SET 37-43154A84
- DECAL SET 37-43154A84
- DECAL SET 37-13477A86
- DECAL SET 37-86667A86

SHIFT CONTROL LINKAGE

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) SHIFT CONTROL LINKAGE:

Mercury 4 HP (1 CYL. PRODUCT OF USA) SHIFT CONTROL LINKAGE Diagram
Position No. Part Name OEM Number Supersedes
1 HANDLE, SHIFT CONTROL 93730T
2 SHAFT, CONTROL HANDLE 66378
3 BUSHING, NYLON - SHIFT CONTROL HANDLE 23-66375
4 CAM, SHIFT SHAFT 66414
5 SECTOR GEAR, SHIFT CONTROL HANDLE 43-66377
6 WASHER, (.281 x .500 x .060) Stainless Steel 12-8M0204649
7 NUT 11-826709109 11-33825, 11-35045
8 PIN, DETENT CAM TO SHIFT SHAFT 17-25905
9 WASHER, (.281 x .500 x .060) Stainless Steel 12-8M0204649
10 NUT, (.250-28) 11-8267089
11 SPRING, DETENT - CRANKCASE 24-39627
12 PLATE, DETENT SPRING 39601
13 SCREW, (.190-32 x .50) 10-25764
14 SHIFT SHAFT, UPPER 71660
15 BUSHING, NYLON - SHIFT CONTROL SHAFT 23-30677
16 SECTOR GEAR, SHIFT SHAFT 43-86686A1

STEERING HANDLE ASSEMBLY

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) STEERING HANDLE ASSEMBLY:

Mercury 4 HP (1 CYL. PRODUCT OF USA) STEERING HANDLE ASSEMBLY Diagram
Position No. Part Name OEM Number Supersedes
- HANDLE ASSEMBLY, Steering, COMPLETE 60850A6
1 GRIP, HANDLE - THROTTLE 60854
2 CAP, HANDLE THROTTLE 62251
3 SHAFT 66393
4 HANDLE ASSEMBLY, THROTTLE SHAFT 66394A1
5 PIN, THROTTLE HANDLE 17-46152
6 WASHER, THROTTLE HANDLE TO STEERING ARM 12-62252
7 ARM, STEERING HANDLE 60850
8 GEAR, THROTTLE SHAFT 43-60852
9 PIN, BALL GEAR TO THROTTLE SHAFT 17-27088
10 PIVOT, STEEIRNG HANDLE TO BRACKET 48003
11 SHIM, HANDLE PIVOT TO BRACKET (.015) 15-48002015
12 SCREW, (.250-28 x .620), HANDLE TO ARM BRACKET 10-96138
13 UNIVERSAL JOINT ASSEMBLY 60857A2
14 GEAR, UNIVERSAL JOINT 43-60852
15 PIN, BALL GEAR TO UNIVERSAL JOINT 17-27088
16 BRACKET, STEERING ARM 96130A1
17 SCREW, (#10-16 x .625), DETENT SPRING TO BRACKET 10-62233
18 SPRING, DETENT - STEERING HANDLE 24-72847
19 WASHER, (.192 x .375 x .0312) Stainless Steel, DETENT SPRING SCREW 12-30164

SWIVEL BRACKET ASSEMBLY

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) SWIVEL BRACKET ASSEMBLY:

Mercury 4 HP (1 CYL. PRODUCT OF USA) SWIVEL BRACKET ASSEMBLY Diagram
Position No. Part Name OEM Number Supersedes
1 SWIVEL BRACKET ASSEMBLY 1471-7324A1
2 FITTING, Grease, SWIVEL BRACKET 22-8M0169589
3 BUSHING, SWIVEL BRACKET 23-64028
4 PLATE, CO-PILOT 77334
5 SCREW, (.250-20 x 1.75), CO-PILOT DISC TO SADDLE 10-78038
6 PLATE ASSEMBLY, CLAMP - CO-PILOT 72845A1
7 DISC, FRICTION 20203
8 SCREW, (.250-28 x 1.380), CLAMP PLATE ADJUSTING 10-36154
9 WASHER, (.2656 x .625 x .0625) Stainless Steel 12-35462
10 PIN, (.125 x 0.75 Inches), SPRING GUIDE 17-25319
11 LEVER ASSEMBLY, TILT STOP 879841
11 LEVER ASSEMBLY, TILT STOP 87984A1
12 SCREW, (.250-28 x 1.00), TILT STOP LEVER 10-41433
13 WAVE WASHER, LEVER ANCHOR SCREW 13-31030
14 NUT, (.250-28) Stainless Steel, TILT STOP LEVER SCREW 11-35888
15 STOP, REVERSE LOCK 72794
16 SCREW, (.250-28 x .560), REVERSE STOP TO SWIVEL BRACKET 10-71056
17 LOCKWASHER, (.250) Stainless Steel, REVERSE STOP SCREW 13-26992
18 WASHER, REVERSE STOP SCREW 12-71055
19 GUIDE, SPRING 63554
20 LEVER, CONTROL - TROLL BRACKET 79744
21 WAVE WASHER, TROLL BRACKET LEVER 13-63631
22 ROD, REVERSE LOCK TO SWITCH BRACKET 71419
23 BUSHING, NYLON - REVERSE LOCK LEVER ROD 23-26841
24 COTTER PIN, REVERSE LOCK LEVER TO ROD 18-45882
25 LEVER, REVERSE LOCK 63628T
26 RETAINER, ROD - REVERSE LOCK 61007
27 BRACKET, TROLL 63559T
28 SPRING, EXTENSION - TROLL BRACKET 24-63630
29 TUBE, SWIVEL BRACKET TO SADDLE 66559

THROTTLE CONTROL LINKAGE

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) THROTTLE CONTROL LINKAGE:

Mercury 4 HP (1 CYL. PRODUCT OF USA) THROTTLE CONTROL LINKAGE Diagram
Position No. Part Name OEM Number Supersedes
1 GEAR, THROTTLE CONTROL 43-60856
2 HOUSING, HORIZONTAL GEAR 60885T
3 SCREW, (1/4-28 x 5/8) 10-96138
4 SHIM ASSEMBLY, PINION GEAR TO BOTTOM COWL 15-64653A1
5 GEAR AND SHAFT ASSEMBLY 42666A3
6 BRACKET, THROTTLE CONTROL LEVER 62099T
7 SCREW, (.190-32 x 1.00), ADJUSTING - THROTTLE 10-23015
8 NUT, Stainless Steel 10-32,11-68219
9 PIN, Roll, LEVER TO VERTICAL SHAFT 17-69745
10 LINK, THROTTLE LEVER TO STATOR PLATE 60920
11 SCREW, (#8-32 x .750) 10-34696
12 WASHER 12-34392
13 WAVE WASHER 13-29720
14 NUT 11-28656
15 SCREW 10-56027

TOP COWL AND STARTER ASSEMBLY

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Below is the parts list for Mercury 4 HP (1 CYL. PRODUCT OF USA) TOP COWL AND STARTER ASSEMBLY:

Mercury 4 HP (1 CYL. PRODUCT OF USA) TOP COWL AND STARTER ASSEMBLY Diagram
Position No. Part Name OEM Number Supersedes
1 TOP COWL ASSEMBLY 191-7668A2
2 STRIP, SOUND SEAL-REAR 39538
3 STRIP, SOUND SEAL-FORWARD 39537
4 MOUNT, RUBBER-TOP COWL 66018
5 TRIM COVER, TOP COWL 89096
6 SCREW, TRIM COVER TO TOP COWL 10-64652
7 TAB WASHER, SHEAVE SHAFT NUT 14-20165
8 NUT, SHEAVE SHAFT (LEFT HAND THREAD) 11-20166
9 COVER, VENT-TOP COWL 64601
10 SCREW, (#10-16 x .500), VENT SCREEN TO TOP COWL 10-35519
11 BRACKET, TOP COWL FASTENING 39257
11 BRACKET, TOP COWL FASTENING 39258
12 SCREW, BRACKET TO TOP COWL (1-1/8") 10-39514
13 WASHER, (.253 x .625 x .0937), BRACKET SCREW 12-39143
14 RETAINER, STARTER SPRING 20155
15 SPRING, STARTER REWIND 24-29340T02
16 BUSHING, SPRING GUIDE 23-28912
17 SHEAVE ASSEMBLY, Starter 50-93696A2
18 PIN, RETAINER, STARTER CABLE 17-22896
19 PAWL, STARTER 30596
20 WAVE WASHER, STARTER PAWL 13-36206
21 BUSHING, NYLON-SHEAVE SHAFT SPACER 23-28919
22 SPACER, SHEAVE SHAFT 23-61005
23 RETAINER, SHEAVE SHAFT TO STARTER SHEAVE 26179
24 WASHER, SHEAVE SHAFT RETAINER 12-35559
25 WAVE WASHER, RETAINER TENSION 13-20160
26 PLATE, RETAINER-STARTER PAWL 30595
27 SHAFT, Sheave 35558
28 PULLEY, STARTER CABLE 93695
29 SPACER, CALBE PULLEY 23-309772
30 WASHER, PULLEY FASTENING SCREW 12-22887
31 SCREW, (.190-24 x .750), PULLEY TO TOP COWL 10-28789
32 ROPE 50-12066Q10
33 RETAINER KIT, Rope 79470A1

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For Mercury Owners:

To assist you in maintaining and repairing your marine engines, we hope the following resources may be of use:

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.

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