Mercury 1250 (2314956 THRU 2839368) Parts & Diagrams

🔎 Mercury 1250 Reference Library — Exploded parts diagrams (19 diagrams), specifications, common issues, and maintenance checklist.

The Mercury 1250 is a 2-Stroke DFI, Inline 3-Cylinder outboard motor. Powers center-console boats, larger pontoons, and offshore-capable fishing craft.

Quick Reference Specifications

Specification	Value
Engine Type	2-Stroke DFI, Inline 3-Cylinder
Horsepower	125 HP
Displacement	1526 cc (1.5L)
Bore x Stroke	92 mm x 76 mm
Spark Plug (Type & Gap)	NGK IZFR5J
Engine Oil Capacity	—
Recommended Engine Oil	Mercury OptiMax/DFI Oil
Gear Case Oil Capacity	828 mL (28 oz)
Idle Speed (in gear)	650–700 RPM (in gear)
Full Throttle RPM Range	5000-5750
Fuel	Unleaded Gasoline, 87 Octane min.

Always verify specifications against your owner's manual for your specific serial number range.

Common Issues & Recommended Parts

Below are common maintenance scenarios for the Mercury 1250:

Water Pump / Overheating: If the tell-tale stream is weak or absent, the water pump impeller likely needs replacement. Inspect annually or every 100 hours. → Recommended: Water Pump Impeller Kit
Engine Oil / Maintenance Light: 4-stroke engines require regular oil and filter changes. Use marine-grade oil rated for your engine. Change every 100 hours or annually. → Recommended: Oil Filter, Engine Oil
Fuel Injector Issues (EFI models): Rough idle or misfires may indicate clogged fuel injectors. Use fuel stabilizer and clean injectors periodically. → Recommended: Fuel Injector, Fuel Filter
Gear Case Oil Leak: Check lower unit seals if gear oil appears milky (water contamination). Replace seals and gaskets during lower unit service. → Recommended: Lower Unit Seal Kit, Drain Plug Gaskets
Anode Corrosion: Inspect sacrificial anodes regularly, especially in saltwater. Replace when 50% depleted to protect against galvanic corrosion. → Recommended: Zinc/Aluminum Anode Kit

Parts Diagrams & OEM Part Numbers

Expand the sections below to view detailed exploded parts diagrams and find the exact OEM replacement components for your Mercury 1250.

▶BOTTOM COWL AND SHIFT LINKAGE (54 parts)

Ref	OEM Part #	Part Name
1	2115-3807	COWL, BOTTOM
2	52862A2	CRIP TRAY ASSEMBLY, BOTTOM COWL
3	37940	PAD, SOUND - DRIP TRAY
4	10-41228	SCREW, DRIP TRAY TO BOTTOM COWL (1/2")
5	32-8M0108355	HOSE, DRIP TRAY TO BOTTOM COWL (8")
6	37638	BOOT, CONTROL CABLES - BOTTOM COWL
7	76369	SPACER, BOTTOM COWL (COWL FRONT COVER)
8	10-48591	SCREW, SPACER TO BOTTOM COWL (1/2")
9	37637	BOOT, FUEL CONNECTOR - BOTTOM COWL
10	23760	BAFFLE, BOTTOM COWL
11	10-52867	SCREW, BAFFLE TO BOTTOM COWL
12	37445	SUPPORT, WIRING HARNESS - BOTTOM COWL
13	10-37561	SCREW, WIRING HARNESS SUPPORT TO BOTTOM COWL (2 1/2")
14	11-8M0207775	NUT, WIRING HARNESS SUPPORT SCREW
15	32-8M0108355	HOSE, TELL TALE - EXHAUST COVER TO BOTTOM COWL (16")
16	22-291112	CONNECTOR, TELL TALE HOSE TO BOTTOM COWL
16A	52889	NOZZLE, TELL TALE HOSE TO BOTTOM COWL
17	10-41228	SCREW, TELL TALE NOZZLE TO BOTTOM COWL (1/2")
18	22-996642	ELBOW, TELL TALE HOSE TO EXHAUST COVER
19	54-48123	CLAMP, TELL TALE HOSE TO CONNECTOR AND ELBOW
20	27-56304	GASKET, POWERHEAD TO EXHAUST EXTENSION PLATE
21	56306A2	PLATE ASSEMBLY, EXHAUST EXTENSION
22	26-38970	SEAL, RUBBER - WATER INLET TUBE
23	38448	RETAINER, WATER TUBE SEAL
24	10-69069	SCREW, RETAINER TO EXHAUST EXTENSION PLATE (3/4")
25	10-24226	SCREW, EXHAUST EXTENSION PLATE TO DRIVE SHAFT HOUSING
26	11-8M0207775	NUT, EXHAUST EXTENSION PLATE SCREW
27	27-48801	GASKET, EXHAUST EXTENSION PLATE TO DRIVE SHAFT HOUSING
28	37918	SEAL, EXHAUST EXTENSION PLATE
29	99358	STRIP, RETAINING - EXHAUST EXTENSION PLATE SEAL
30	10-37571	SCREW, SEAL AND RETAINING STRIP TO EXTENSION PLATE (1/2")
31	60304A54	SHIFT SHAFT ASSEMBLY, UPPER (LONG SHAFT) Comment: SERIAL 02653880-09999999
32	23-26600	BUSHING, SHIFT SHAFT Comment: SERIAL 02653880-09999999
33	93960A1	COUPLING, SHIFT SHAFT Comment: SERIAL 02653880-09999999
34	73402	LINK ROD ASSEMBLY
35	12-24664	WASHER, LINK ROD
36	13-29720	WASHER, WAVE - LINK ROD
37	52732A6	BRACKET ASSEMBLY, ANCHOR CONTROL CABLES
38	49935	CAP, BRASS BARREL TO THROTTLE CABLE
39	10-35386	SCREW, ANCHOR BRACKET TO CYLINDER BLOCK (1")
40	24-20099	SPRING, LINK ROD TO GUIDE BLOCK
41	37896	GUIDE BLOCK, LINK ROD
42	52100	WEAR PLATE, LINK ROD (NOT AS SHOWN)
43	8M0036768	LATCH, CONTROL CABLE FASTENING - ANCHOR BRACKET
44	12-69056	WASHER, PLAIN - LINK ROD
45	11-826709109	NUT, LINK ROD
46	49932A1	LEVER ASSEMBLY, CONTROL CABLE LOCKING - ANCHOR BRACKET
47	24-37911	SPRING, CONTROL CABLE LOCKING LEVER
48	17-239281	PIN, ROLL - CONTROL CABLE LOCKING LEVER
49	24-38472	SPRING, CONTROL CABLE TENSION - ANCHOR BRACKET
50	46933A1	GROUND STRAP ASSEMBLY, CRANKCASE TO COWL (3 5/8")
51	46933A2	GROUND STRAP ASSEMBLY, HOUSING TO COWL (3 3/8")
52	10-62568	SCREW, GROUND STRAP FASTENING
53	13-69432	LOCKWASHER, GROUND STRAP SCREW

▶CARBURETOR ASSEMBLY (23 parts)

Ref	OEM Part #	Part Name
--	1395-92621	REPAIR PARTS KIT (1 PER CARBURETOR)
1	1348-3718	CARBURETOR ASSEMBLY, COMPLETE (KD-2A) SEE NOTE ON PG 14
2	1395-8673	FLOAT ASSEMBLY SEE NOTE ON PG 14
6	1395-92581	INLET NEEDLE, SEAT AND GASKET
9	1399-1133	COVER, FLOAT BOWL
10	10-52195	SCREW, FLOAT BOWL COVER (SHORT)
11	10-52196	SCREW, FLOAT BOWL COVER (LONG)
12	13-26995	LOCKWASHER, FLOAT BOWL COVER SCREW
14	1399-3938	SCREEN, FILTER
16	1399-4791A1	COVER, STRAINER
18	10-25822	SCREW, STRAINER COVER FASTENING
19	1395-6027	SCREW, THROTTLE STOP LEVER
20	8146791	LEVER, THROTTLE STOP (SEE NOTE BELOW)
21	1395-7942	SHAFT, THROTTLE
23	10-23178	SCREW, BODY (IDLE TUBE)
26	1395-9017	SHUTTER, THROTTLE
28	1399-3515	SCREW, IDLE ADJUSTMENT
29	10-28405	SCREW, PLUG - MAIN FUEL JET CHANNEL
31	1395-6207	JET, MAIN FUEL (.072)
33	1399-3522	SCREW, PLUG - MAIN NOZZLE
36	10-23030	SCREW, BODY CHANNEL
37	27-481641	GASKET, CARBURETOR FLANGE
38	11-29250	NUT, CARBURETOR MOUNTING STUD

▶CARBURETOR LINKAGE AND CHOKE SOLENOID (35 parts)

Ref	OEM Part #	Part Name
--	28-89694	INSERT, THROTTLE COUPLING Comment: SERIAL 02654513-09999999
1	48187	CHOKE SOLENOID
2	13-26996	LOCKWASHER, SOLENOID TERMINAL
3	11-68219	NUT, SOLENOID TERMINAL
4	10-25299	SCREW, CHOKE SOLENOID (3/4")
5	13-8M0204647	LOCKWASHER, CHOKE SOLENOID SCREW
6	48315A2	PLUNGER AND LINK ASSEMBLY, CHOKE SOLENOID
7	52518	CLUSTER, THROTTLE LEVER (UPPER CARBURETOR)
8	1395-6027	SCREW, CLUSTER TO THROTTLE LEVER
9	1348-3718	CARBURETOR ASSEMBLY, COMPLETE (KD-2)
10	53720A2	THROTTLE PICK-UP BRACKET ASSEMBLY Comment: SERIAL 02654513-09999999
11	10-53651	SCREW, THROTTLE BRACKET MOUNTING Comment: SERIAL 02654513-09999999
12	59757	BRACKET, COIL LEAD RETAINER
13	10-64278	SCREW, COIL BRACKET (1")
14	12-8M0204649	WASHER, COIL BRACKET SCREW
15	11-8M0207775	NUT, COIL BRACKET SCREW
16	90242A1	KNOB, CHOKE ROD
17	25-20116	GROMMET, CHOKE ROD
18	49589	STRAP, CHOKE KNOB TO CHOKE ROD
19	10-48591	SCREW, STRAP TO CHOKE KNOB (1/2")
20	13-26996	LOCKWASHER, STRAP SCREW
21	48203	ROD, CHOKE
22	10-48591	SCREW, STRAP TO CHOKE ROD (1/2")
23	11-46438	NUT, STRAP TO CHOKE ROD SCREW
24	48152	SHUTTER, CHOKE - CARBURETOR
25	16-69037	STUD, CARBURETOR - CHOKE SHUTTER PIVOT
26	11-20110	NUT, CHOKE SHUTTER TO CARBURETOR STUD
27	35-57819A1	SCREEN, FILTER - CARBURETOR (MIDDLE AND TOP)
28	10-22523	SCREW, CARBURETOR FILTER SCREEN STO CARBURETOR (5/8")
29	11-20110	NUT, CARBURETOR FILTER SCREEN FASTENING SCREW
30	35-48406	SCREEN, FILTER - CARBURETOR (LOWER)
31	24-48230	SPRING, CHOKE ROD TENSION
32	10-657461	STUD, CHOKE ROD SPRING TO CARBURETOR
33	23-32427	SPACER, CHOKE ROD SPRING STUD
34	11-8M0207775	NUT, CHOKE ROD SPRING TO CARBURETOR STUD

▶CLAMP AND SWIVEL BRACKET ASSEMBLY (61 parts)

Ref	OEM Part #	Part Name
--	11-8M0207775	NUT, LOWER SHOCK PIN SCREW (LONG SHAFT
1	1440-8394A1	CLAMP BRACKET ASSEMBLY
2	28403A3	THUMB SCREW ASSEMBLY
3	12-28404	WAHSER, THUMB SCREW
4	8M0041936	TUBE, TILT - CLAMP BRACKET TO SWIVEL BRACKET
5	12-52864	WASHER, CLAMP BRACKET TILT TUBE
6	11-858869	NUT, TILT TUBE FASTENING
7	53078	CAP, PLASTIC - TILT TUBE
8	23-59624	SPACER, CLAMP BRACKET STUD
10	13-8M0204647	LOCKWASHER, CLAMP BRACKET STUD
11	11-22053	NUT, CLAMP BRACKET STUD
12	17-8M0026068	TILT LOCK PIN ASSEMBLY
13	32-28052	SLEEVE, RUBBER - TILT PIN BUMPER
14	1482-6386A4	SWIVEL BRACKET ASSEMBLY (LONG SHAFT)
15	26-37448	OIL SEAL, SWIVEL BRACKET
16	10-47828	SCREW, DRIVE - SWIVEL BRACKET
17	22-69059	FITTING, GREASE - SWIVEL BRACKET
18	19-77633Q	LUBRICAP, SWIVEL BRACKET GREASE FITTING
19	24-94891	SPRING, COIL - SWIVEL BRACKET
20	17-38311	PIN, COIL SPRING MOUNTING
21	76386	TILT LOCK ASEMBLY, STARBOARD
22	76385T	TILT LOCK ASSEMBLY, PORT
23	47802	TUBE, TILT LOCK
24	18-47959	COTTER PIN, TILT LOCK TUBE
25	23-47803	BUSHING, TILT LOCK TUBE
26	13-69150	WASHER, WAVE - TILT LOCK TUBE
27	17-49840A1	SWIVEL PIN AND STEERING ARM ASSEMBLY (LONG SHAFT)
28	28203	BUMPER, STEERING ARM
29	10-49554	BOLT, STEERING ARM TO UPPER MOUNT (5 7/8")
30	11-8M0204653	NUT, STEERING ARM BOLT FASTENING
31	10-31830	SCREW, RIDE-GUIDE ATTACHING
32	11-8M0204726	NUT, RIDE-GUIDE ATTACHING SCREW
33	12-37429	WASHER, SWIVEL PIN - LOWER
34	73984T	YOKE, BOTTOM
35	11-37424	NUT, SWIVEL PIN RETAINING
36	28205T	STRAP STOP, DRIVE SHAFT HOUSING TO SWIVEL BRACKET
37	10-28200	SCREW, STRAP STOP TO DRIVE SHAFT HOUSING (2 7/8")
38	11-25269	NUT, STRAP STOP FASTENING SCREW
39	23-28688	SPACER, RUBBER - COIL SPRING POSITIONING
40	55-28416	PIN, UPPER SHOCK MOUNTING
41	10-68299	BOLT, CLAMP BRACKET TO BOAT TRANSOM (UPPER)
42	12-68300	WASHER, CLAMP BRACKET BOLT (UPPER)
43	11-82670912	NUT, CLAMP BRACKET BOLT
44	38-56267	SERIAL PLATE
45	10-25612	SCREW, DRIVE - SERIAL PLATE TO SWIVEL BRACKET
46	17-25598	PIN, REVERSE LOCK SPRING ATTACHING
47	24-29821	SPRING, REVERSE LOCK TENSION
48	87431	REVERSE LOCK ASSEMBLY
49	56349	SHAFT, REVERSE LOCK PIVOT
50	18-45882	COTTER PIN, REVERSE LOCK TO SHAFT
51	55-28414	PIN, LOWER SHOCK MOUNTING (LONG SHAFT
52	23-28199	SPACER, UPPER SHOCK BUSHING TO CLAMP BRACKET
53	12-28196	WASHER, UPPER BUSHING RETAINER (INNER)
54	12-8M0204695	WASHER, LOWER BUSHING RETAINER (INNER)
55	55-58780A7	SHOCK ABSORBER
56	23-32171	BUSHING, RUBBER - SHOCK ABSORBER (UPPER)
57	23-28198	BUSHING, RUBBER - SHOCK ABSORBER (LOWER)
58	12-8M0204648	WASHER, UPPER AND LOWER BUSHING RETAINER (OUTER)
59	10-69375A1	SCREW, UPPER AND LOWER SHOCK MOUNTING PIN
60	70679	COVER, UPPER AND LOWER SHOCK MOUNTING PIN
61	10-37655	SCREW, COVER TO SHOCK MOUNTING SCREW

▶COWLING AND FRONT COVER (16 parts)

Ref	OEM Part #	Part Name
--	92-271091	ADHESIVE COMPOUND, EMBLEM FASTENING
1	2183-7928A3	COWL FRONT COVER ASSEMBLY
2	37-64413	EMBLEM, FRONT COVER
3	56849	KNOB, COWL FRONT COVER FASTENING
4	12-30771	WASHER, COVER FASTENING KNOB (RUBBER)
5	12-26825	WASHER, COVER FASTENING KNOB (STEEL)
6	24-30772	SPRING, TENSION - FASTENING KNOB
7	17-29077	ROLL PIN, TENSION SPRING TO KNOB
8	31089	STRIP, SOUND ABSORBING
9	38675	BLANKET, SOUND ABSORBING
10	35769	SEAL, SOUND ABSORBING - UPPER
11	53334	SEAL, SOUND ABSORBING - TOP
12	2136-4660A4	WRAP AROUND COWL ASSEMBLY
13	46785A1	COWL LATCH ASSEMBLY
14	30413	HOOK, COWL LATCH FASTENING
15	30021	BLANKET, SOUND ABSORBING

▶CRANKSHAFT, PISTONS AND CONNECTING RODS (28 parts)

Ref	OEM Part #	Part Name
1	436-9072A1	CRANKSHAFT ASSEMBLY (NOT AS SHOWN)
2	11-52901	NUT, FLYWHEEL TO CRANKSHAFT
3	30-62567T	BEARING, BALL - UPPER
4	30-63742T	BEARING, BALL - LOWER Comment: SERIAL 02709828-09999999
5	535-3190A2	CENTER MAIN BEARING ASSEMBLY
6	17-20032	DOWEL PIN, CENTER MAIN BEARING
7	29-714221	BEARING, NEEDLE - OUTER RACE
8	26113T	RACE, OUTER (PAIR)
9	53-26933	RING, SMAP - OUTER RACE
10	17-47246	DOWEL PIN, STEPPED
11	10-22968	SCREW, CENTER MAIN BEARING CLAMPING
12	11-8M0207775	NUT, BEARING CLAMPING SCREW
13	540-7238A2	MAIN BEARING ASSEMBLY, VALVE TYPE
14	17-20032	DOWEL PIN, MAIN BEARING
15	10-45775	SCREW, MAIN BEARING CLAMPING
16	11-45774	NUT, MAIN BEARING CLAMPING SCREW
17	34-56007A1	REED SET, MATCHED - MAIN BEARING
18	34-48081	REED STOP, MAIN BEARING REED VALVES
19	10-20597	SCREW, REED STOP MOUNTING
20	742-3512A2	PISTON AND PISTON PIN ASSEMBLY "C" TYPE LOCK RING Comment: SEE DRAWING BELOW
21	53-857196	LOCK RING, PISTON PIN "C" TYPE LOCK RING Comment: SEE DRAWING BELOW
22	39-78816A12	RING, PISTON (1/16" THICK) "C" TYPE LOCK RING Comment: SEE DRAWING BELOW
23	624-8101A3	CONNECTING ROD AND CAP ASSEMBLY
24	31-62596A1	BEARING ASSEMBLY, CRANKPIN
25	10-54803	SCREW, CONNECTING ROD
26	11-49091	NUT, CONNECTING ROD SCREW
27	29-8M0214934	BEARING NEEDLE - PISTON PIN
28	12-8M0032839	WASHER, NEEDLE LOCATING

▶CYLINDER BLOCK AND CRANKCASE ASSEMBLY (64 parts)

Ref	OEM Part #	Part Name
--	12-22753	WASHER CRANKCASE TO CYLINDER BLOCK SCREW
1	1134-3197A1	END CAP ASSEMBLY, UPPER
2	26-41953	OIL SEAL
3	25-47254	"O" RING
4	15-47248A1	SHIM, END CAP TO CRANKCASE (.002-3-5-10)
5	10-30225	SCREW, END CAP MOUNTING (A")
6	846-3181A7	CYLINDER BLOCK AND CRANKCASE ASSEMBLY (NOT AS SHOWN)
7	27-53862	GASKET, CRANKCASE TO CYLINDER BLOCK
8	22-328022	PLUG, PIPE - WATER PRESSURE HOSE
9	16-64936	STUD, CARBURETOR MOUNTING (1 3/16")
10	16-64281	STUD, CRANKCASE TO DRIVE SHAFT HOUSING (1 7/8")
11	17-43044	PIN, DOWEL - CRANKCASE TO CYLINDER BLOCK
12	17-20323	PIN, DOWEL - CYLINDER BLOCK TO MAIN BEARING
13	16-26134	STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (4 1/16")
14	16-48770	STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (3 9/16")
15	16-26324	STUD, CYLINDER BLOCK TO DRIVE SHAFT HOUSING (2 7/8")
16	10-53460	SCREW, CRANKCASE TO CYLINDER BLOCK (2 1/2") Comment: SERIAL 00270982-09999999
17	10-69091	SCREW, CRANKCASE TO CYLINDER BLOCK (1 5/8")
18	11-29250	NUT, CRANKCASE FASTENING SCREW
19	10-20359	SCREW, CENTER MAIN BEARING LOCKING
20	14-20091	TAB WASHER, BEARING LOCKING SCREW
21	1126-3196A3	END CAP ASSEMBLY, LOWER
22	21-28481A1	CHECK VALVE ASSEMBLY, END CAP
23	26-29478	OIL SEAL, LOWER
24	26-41953	OIL SEAL, UPPER
25	25-20081	"O" RING
26	15-20085A1	SHIM, END CAP TO CRANKCASE (.002-3-5-10)
27	10-30225	SCREW, END CAP MOUNTING (1")
28	66696A1	COVER, WATER JACKET - CYLINDER BLOCK Comment: PART OF A-846-3181A7 CYLINDER BLOCK AND CRANKCASE ASSEMBLY
29	27-47228	GASKET, WATER JACKET COVER Comment: PART OF A-846-3181A7 CYLINDER BLOCK AND CRANKCASE ASSEMBLY
30	10-53167T	SCREW, WATER JACKET COVER TO CYLINDER BLOCK (7/8") Comment: PART OF A-846-3181A7 CYLINDER BLOCK AND CRANKCASE ASSEMBLY
31	13-53166	LOCKWASHER, WATER JACKET COVER FASTENING SCREW Comment: PART OF A-846-3181A7 CYLINDER BLOCK AND CRANKCASE ASSEMBLY
32	27-47229	GASKET, CYLINDER BLOCK TO BAFFLE PLATE
33	62277A1	PLATE, BAFFLE - EXHAUST MANIFOLD
34	27-47227	GASKET, BAFFLE PLATE TO EXHAUST MANIFOLD COVER
35	47253	COVER, EXHAUST MANIFOLD
36	10-38837	SCREW, MANIFOLD COVER MOUNTING (1 1/8")
37	58124A4	SWITCH, MERCURY
38	10-28708	SCREW, MERCURY SWITCH TO FRONT MOUNTING BRACKET (1/2")
39	17-30496	PIN, ROLL - MERCURY SWITCH
40	10-62568	SCREW, MERCURY SWITCH LEAD
41	1011-3208	COVER, CYLINDER BLOCK
42	27-47226	GASKET, CYLINDER BLOCK COVER
43	10-21091	SCREW, CYLINDER BLOCK COVER MOUNTING (1 1/8")
44	11-8M0207775	NUT, COVER MOUNTING SCREW
45	22-328022	PLUG, PIPE - CYLINDER BLOCK COVER
46	37440	BRACKET, MOUNT SUPPORT - CYLINDER BLOCK
47	10-35386	SCREW, BRACKET TO CYLINDER BLOCK (1")
48	47236	COVER, TRANSFER PORT
49	27-472511	GASKET, TRANSFER PORT COVER
50	10-28635	SCREW, TRANSFER PORT COVER MOUNTING (5/8")
51	22-67902	CONNECTOR, CYLINDER BLEED HOSE - LOWER AND UPPER
52	32-9912688	HOSE, UPPER AND LOWER CYLINDER BLEED (9 1/2")
53	22-62365A1	CHECK VALVE ASSEMBLY, BLEED HOSE
54	21-28481A1	CHECK VALVE ASSEMBLY
55	54-20387	CLAMP, BLEED HOSE TO CONNECTOR
56	22-432881	TEE, BLEED HOSE TO CYLINDER BLOCK - CENTER
57	32-9912688	HOSE, CENTER CYLINDER BLEED (9 1/2")
58	32-8M0108355	TUBE, BALANCE - MAIN BEARING
59	22-53491	TEE, BLEED HOSE TO CYLINDER BLOCK - LOWER
60	32-9912688	HOSE, CYLINDER BLEED - LOWER (8 1/2")
61	22-20781	ELBOW, BALANCE TUBE TO MAIN BEARING SCREW
62	22-8585531	TEE, BALANCE TUBE TO MAIN BEARING SCREW
63	54-20386	CLAMP, BALANCE TUBE TO ELBOW AND TEE

▶DISTRIBUTOR ADAPTOR AND PILOT ASSEMBLY (58 parts)

Ref	OEM Part #	Part Name
1	45-47982	DRIVE SHAFT, DISTRIBUTOR
2	48667	PILOT, DISTRIBUTOR MOUNTING
3	24-54639	SPRING, DISTRIBUTOR PILOT TO THROTTLE LEVER (3 17/32") Comment: WHEN ORDERING REPLACEMENT PART, MEASURE LENGTH OF SPRING TO INSURE RECEIVING CORRECT PART.
4	30109	GROUND STRAP, DISTRIBUTOR ADAPTOR CRANKCASE
5	10-62568	SCREW, GROUND STRAP TO CRANKCASE (3/8")
6	10-69067	SCREW, DISTRIBUTOR PILOT TO DISTRIBUTOR (1 3/8") USE WITH 3 Comment: USE WITH 3 17\32" SPRING SEE REF. #3
7	13-26992	LOCKWASHER, DISTRIBUTOR PILOT SCREW
8	48676	LINK, DISTRIBUTOR PILOT TO DISTRIBUTOR ADVANCE ARM
9	23-26856	BUSHING, NYLON - DISTRIBUTOR PILOT
10	12-20583	WASHER, DISTRIBUTOR PILOT LINK
11	18-210711	COTTER PIN, LINK TO DISTRIBUTOR PILOT
12	53635	SWIVEL, LINK TO DISTRIBUTOR ADVANCE ARM
13	11-30506	NUT, JAM - LINK TO SWIVEL
14	12-46246	WASHER, DISTRIBUTOR TO PILOT
15	30-20066	BEARING, BALL - DISTRIBUTOR PILOT
16	48691	CAM, DISTRIBUTOR
17	10-48673	SCREW, CAM FOLLOWER TO DISTRIBUTOR ADVANCE ARM
18	48678	CAM FOLLOWER, DISTRIBUTOR ADVANCE ARM
19	48690	COLLAR, ECONOMIZER
20	10-49990	SCREW, DISTRIBUTOR CAM TO ECONOMIZER COLLAR (1")
21	12-847883	WASHER, DISTRIBUTOR CAM SCREW
22	22-25094	FITTING, GREASE - ECONOMIZER COLLAR
23	48692	COLLAR, THROTTLE ACTUATOR
24	10-48675	SCREW, ADJUSTING - THROTTLE ACTUATOR COLLAR (1 1/2")
25	11-20890	NUT, ADJUSTING SCREW
26	52023	CAP, NYLON - ADJUSTING SCREW
27	48671	PLATE, THROTTLE ACTUATOR
28	54239	CAM, THROTTLE ACTUATOR PLATE
29	10-37892	SCREW, ACTUATOR PLATE TO ECONOMIZER COLLAR (1")
30	13-26996	LOCKWASHER, ACTUATOR PLATE SCREW
31	12-847883	WASHER, ACTUATOR PLATE SCREW
32	23-48674	SPACER, ACTUATOR PLATE SCREW
33	66165A2	ADAPTOR ASSEMBLY, DISTRIBUTOR
34	22-25094	FITTING, GREASE - DISTRIBUTOR ADAPTOR
35	10-78841	SCREW, DISTRIBUTOR ADAPTOR TO CRANKCASE FLANGE (1 1/2")
36	12-20084	WASHER, DISTRIBUTOR ADAPTOR SCREW
37	11-22053	NUT, DISTRIBUTOR ADAPTOR SCREW
38	12-27939	WASHER, THRUST - DISTRIBUTOR ADAPTOR
39	14-27960	TAB WASHER, CAP LOCKING
40	13-27959	WASHER, WAVE - TAB WASHER TENSION
41	27955	CAP, DISTRIBUTOR ADAPTOR AND PILOT
42	23-47250	SPACER, DRIVEN PULLEY
43	29906A1	DRIVEN PULLEY ASSEMBLY
44	17-29908	PIN, DRIVEN PULLEY
45	29907	FLANGE, DRIVEN PULLEY
46	10-64652	SCREW, PULLEY CLAMPING (5/8")
47	28-29910	KEY, DISTRIBUTOR DRIVING
48	20140	BELT, TIMING
49	48670	BRACKET, STOP
50	10-31983	SCREW, STOP BRACKET TO DISTRIBUTOR ADAPTOR (3/4")
51	12-20533	WASHER, STOP BRACKET SCREW
52	10-24228	SCREW, STOP BRACKET ADJUSTING (1 7/8")
53	11-20890	NUT, STOP BRACKET ADJUSTING SCREW
54	26852	CAP, NYLON - ADJUSTING SCREW
55	48668A1	ARM ASSEMBLY, DISTRIBUTOR ADVANCE
56	23-49537	BUSHING, DISTRIBUTOR ADVANCE ARM
57	10-49285	BOLT, DISTRIBUTOR ADVANCE ARM TO STOP BRACKET
58	12-26825	WASHER, DISTRIBUTOR ADVANCE ARM BOLT

▶DISTRIBUTOR ASSEMBLY, COMPLETE (32 parts)

Ref	OEM Part #	Part Name
-	393-2799A11	DISTRIBUTOR ASSEMBLY, COMPLETE
--	8M0084600	CONNECTOR, SPARK PLUG LEAD
1	393-2799A21	HOUSING ASSEMBLY, PRIMARY
2	10-45218	SCREW, TRIGGER HOUSING TO PRIMARY HOUSING
3	13-26917	WASHER, WAVE - PRIMARY HOUSING
4	30-26379	BEARING, BALL - ROTOR SHAFT
5	53-45906	RING, RETAINER - ROTOR SHAFT BALL BEARING
6	393-3269A6	ROTOR SHAFT ASSEMBLY
7	393-2795	SHIM, TRIGGER HOUSING TO PRIMARY HOUSING
8	393-2918A6	TRIGGER HOUSING ASSEMBLY
9	393-3014A2	ADAPTOR ASSEMBLY, HOUSING TO DISTRIBUTOR CAP
10	27-46351	GASKET, ADAPTOR TO PRIMARY HOUSING
11	17-20032	DOWEL PIN, ADAPTOR TO PRIMARY HOUSING
12	10-32627	SCREW, ADAPTOR TO HOUSING (1 1/2")
13	11-46438	NUT, ADAPTOR TO HOUSING SCREW
14	22-31521A1	ELBOW ASSEMBLY, VENT HOSE - ADAPTOR HOUSING
15	27-36268	GASKET, DISTRIBUTOR TO ADAPTOR
16	393-1927A9	DISTRIBUTOR CAP ASSEMBLY
17	393-1293A1	BRUSH AND SPRING ASSEMBLY
18	22-31521	ELBOW, VENT HOSE - DISTRIBUTOR CAP
19	10-60464	SCREW, DISTRIBUTOR CAP TO ADAPTOR TO HOUSING (2")
20	12-89302	WASHER, DISTRIBUTOR CAP FASTENING SCREW
21	11-46438	NUT, DISTRIBUTOR CAP FASTENING SCREW
22	393-2725	COVER, SIDE INLET - DISTRIBUTOR
23	27-26447	GASKET, SIDE INLET COVER TO DISTRIBUTOR CAP
24	10-35400	SCREW, SIDE INLET COVER TO DISTRIBUTOR CAP (7/16")
25	84-821945A8	HIGH TENSION CABLE ASSEMBLY - DISTRIBUTOR TO COIL
26	85-94589	SLEEVE, TERMINAL END COVER
27	25-26547	GROMMET, SPARK PLUG LEAD
28	332-2854T01	BOOT, HIGH TENSION CABLE TO COIL
29	84-813715A1	SPARK PLUG LEAD ASSEMBLY
30	85-63709A1	PROTECTOR, SPARK PLUG LEAD

▶DISTRIBUTOR VERTICAL LINKAGE AND IGNITION COILS (40 parts)

Ref	OEM Part #	Part Name
1	27947	SWIVEL, LINKAGE - ECONOMIZER COLLAR
2	25996A1	SWIVEL AND LINK ROD ASSEMBLY
3	11-25168	NUT, UPPER LINK ROD ADJUSTING
4	37700	ROD, LINK - UPPER
5	27948	SWIVEL, UPPER LINK ROD TO THROTTLE CONTROL LEVER
6	48856	LEVER, THROTTLE CONTROL
7	12-8M0204649	WASHER, THROTTLE CONTROL LEVER SWIVEL
8	13-25806	WASHER, WAVE - THROTTLE CONTROL LEVER SWIVEL
9	11-8267089	NUT, UPPER LINK ROD SWIVEL TO THROTTLE CONTROL
10	10-31830	SCREW, THROTTLE LEVER TO EXHAUST MANIFOLD COVER (1 3/4")
11	12-8M0042641	WASHER, THROTTLE CONTROL LEVER SCREW
12	23-45818	BUSHING, THROTTLE CONTROL LEVER
13	11-8M0204726	NUT, THROTTLE CONTROL LEVER SCREW
14	37587	SWIVEL, LOWER - THROTTLE CONTROL LEVER TO THROTTLE CABLE
15	11-8267089	NUT, THROTTLE CABLE TO LOWER SWIVEL
16	393-2799A11	DISTRIBUTOR ASSEMBLY, COMPLETE
17	45409	WIRE RETAINER, HIGH TENSION LEADS
18	45392	BRACKET, FRONT - WIRE RETAINER
19	47398	BRACKET, REAR - WIRE RETAINER
20	10-62568	SCREW, FRONT AND REAR BRACKET ATTACHING
21	45391	SPACER, RUBBER - HIGH TENSION LEADS
22	33-896329827	SPARK PLUG (CHAMPION - L19V)
23	32-8M0108355	HOSE, VENT - DISTRIBUTOR TO ELBOW (13")
24	32-8M0108355	HOSE, VENT - DISTRIBUTOR TO ELBOW (16")
25	22-31521	ELBOW, VENT HOSE TO BOTTOM COWL
26	54-22875	CLAMP, VENT HOSE TO BOTTOM COWL
27	10-48591	SCREW, VENT HOSE CLAMP TO BOTTOM COWL (1/2")
28	8M0084613	"D" WASHER, VENT HOSE CLAMP SCREW
29	11-24656	NUT, VENT HOSE CLAMP SCREW
30	332-4895A5	IGNITION COIL ASSEMBLY, COMPLETE
31	10-46367	SCREW, IGNITION COIL CLAMPING - CLIP ATTACHING (2 1/2")
32	11-68219	NUT, IGNITION COIL CLAMPING SCREW
33	12-8M0204666	WASHER, IGNITION COIL CLAMPING SCREW
34	54-22740	CLIP, LEAD WIRE TO IGNITION COIL
35	8M0084613	"D" WASHER, IGNITION COIL CLAMPING SCREW
36	11-8267086	NUT, IGNITION COIL CLAMPING SCREW
37	10-69026	SCREW, COIL MOUNTING BRACKET (7/8")
38	13-26992	LOCKWASHER, COIL MOUNTING BRACKET
39	10-37561	SCREW, COIL MOUNTING BRACKET (2 1/2")
40	11-8M0207775	NUT, COIL MOUNTING BRACKET SCREW

▶DRIVE SHAFT HOUSING ASSEMBLY (53 parts)

Ref	OEM Part #	Part Name
1	1551-3918A3	DRIVE SHAFT HOUSING ASSEMBLY (LONG SHAFT)
2	16-56295	STUD, DRIVE SHAFT HOUSING TO GEAR HOUSING
3	19-47579	PLUG, PLASTIC - TRIM TAB SCREW HOLE Comment: PART OF A-1552-3670A3 AND A-151-3669A4 DRIVE SHAFT HOUSING ASSEMBLIES
4	10-48409	SCREW, RETAINING STRIP TO DRIVE SHAFT HOUSING (5/8") Comment: PART OF A-1552-3670A3 AND A-151-3669A4 DRIVE SHAFT HOUSING ASSEMBLIES
5	10-48408	SCREW, RETAINING STRIP TO DRIVE SHAFT HOUSING (1/2") Comment: PART OF A-1552-3670A3 AND A-151-3669A4 DRIVE SHAFT HOUSING ASSEMBLIES
6	37417	COVER, TRIM - DRIVE SHAFT HOUSING
7	10-37571	SCREW, TRIM COVER TO BOTTOM COWL
8	37919	SEAL, TRIM COVER TO DRIVE SHAFT HOUSING
9	37665	STRIP, RETAINING - COVER SEAL (SIDE)
10	38052	STRIP, RETAINING - TRIM COVER SEAL (REAR)
11	32-37438	TUBE, WATER INLET (LONG SHAFT)
12	23-29591	SLEEVE, RUBBER - WATER INLET TUBE
13	38470	TUBE, EXHAUST (LONG SHAFT)
14	10-38601	SCREW, EXHAUST TUBE TO EXHAUST EXTENSION PLATE (5/8")
15	11-35888	NUT, EXHAUST TUBE SCREW
16	11-82670911	NUT, POWERHEAD STUDS (5/16-24)
17	11-23161	NUT, POWERHEAD STUDS (3/8-24)
18	12-20086	WASHER, POWERHEAD STUDS
19	27-48801	GASKET, EXHAUST EXTENSION PLATE TO DRIVE SHAFT HOUSING
20	52887	GUIDE, PUSH ROD - REVERSE LOCKING
21	47558	ROD, PUSH - REVERSE LOCK (LONG SHAFT)
22	11-69254	NUT, JAM - PUSH ROD
23	47559	YOKE, PUSH ROD
24	24-78203A2	PIN, PUSH ROD TO REVERSE LOCK
25	18-25191	COTTER PIN, PUSH ROD PIN
26	75297	MOUNT, RUBBER - UPPER (HEAVY DUTY)
27	49239	COVER, UPPER MOUNT - OUTSIDE HALF
28	53141	COVER, UPPER MOUNT - INSIDE HALF
29	24929	PACKING, "U" CUP
30	10-20012	SCREW, UPPER MOUNT COVER (1 5/8")
31	10-28775	SCREW, UPPER MOUNT COVER (2 1/8")
32	12-8M0204649	WASHER, UPPER MOUNT COVER SCREW
33	11-35888	NUT, UPPER MOUNT COVER SCREW
34	12-31262	WASHER, UPPER MOUNT BOLT
35	12-47840	WASHER, RUBBER - UPPER MOUNT BOLT
36	12-31263	WASHER, UPPER MOUNT BOLT
37	11-8M0204653	NUT, UPPER MOUNT BOLT
38	31264	CAP, RUBBER - UPPER MOUNT BOLT
39	75300	MOUNT, RUBBER - LOWER (HEAVY DUTY)
40	10-75284	SCREW, LOWER MOUNT (5 1/2")
41	12-49339	WASHER, LOWER MOUNT SCREW
42	11-25096	NUT, LOWER MOUNT SCREW
43	25067	BUMPER, RUBBER - LOWER MOUNTING SCREW
44	11-8M0204653	NUT, GEAR HOUSING AND DRIVE SHAFT HOUSING STUDS
45	12-45176	WASHER, GEAR HOUSING TO DRIVE SHAFT HOUSING STUDS
46	11-29489	NUT, GEAR HOUSING AND DRIVE SHAFT HOUSING STUDS
47	12-45176	WASHER, GEAR HOUSING TO DRIVE SHAFT HOUSING STUDS
48	35608	CLAMP, LOWER MOUNT TO DRIVE SHAFT HOUSING
49	24-35522	SPRING, TENSION - LOWER MOUNT CLAMP
50	10-29256	SCREW, LOWER MOUNT CLAMP TO DRIVE SHAFT HOUSING
51	35474T	COVER, LOWER MOUNT CLAMP
52	11-35521	NUT, LOWER MOUNT CLAMP COVER
53	10-29722	SCREW, COVER TO LOWER CLAMP MOUNT

▶FLYWHEEL ASSEMBLY AND STATOR (16 parts)

Ref	OEM Part #	Part Name
1	19-45907	PLUG8 FLYWHEEL PULLER THREADS
2	11-52901	NUT, FLYWHEEL (PART OF A436-31874A4 CRANKSHAFT ASSEMBLY)
3	12-33001	WASHER, FLYWHEEL NUT
4	225-2494A37	FLYWHEEL ASSEMBLY, COMPLETE
5	10-32417	SCREW, FLEXIBLE PLATE TO FLYWHEEL (5/8")
6	10-68997	SCREW, PLATE AND HUB TO FLEXIBLE PLATE (3/4")
7	17-26618	PIN, DOWEL - PULLEY TO FLYWHEEL
8	29788	FLANGE, FLYWHEEL PULLEY
9	30306	PULLEY, FLYWHEEL
10	29787	HUB, FLYWHEEL PULLEY
11	398-4793	STATOR, ALTERNATOR
12	30050	TERMINAL, STATOR LEAD WIRE
13	10-57021	SCREW, STATOR TO UPPER END CAP (7/8")
14	54-26550	CLIP, STATOR/WIRING HARNESS LEADS FASTENING (5/16")
15	10-37655	SCREW, STATOR LEAD CLIP FASTENING (10-32 X 1/2")
16	8M0084613	"D" WASHER, CLIP FASTENING SCREW

▶FUEL PUMP AND FUEL LINE ASSEMBLY (36 parts)

Ref	OEM Part #	Part Name
1	56677A6	FUEL PUMP ASSEMBLY - UPPER
2	21-30430A1	CHECK VALVE ASSEMBLY
3	23014A1	DIAPHRAGM KIT
7	23004	RETAINER, CHECK VALVE
8	10-43725	SCREW, RETAINER TO HOUSING
9	30461A2	FUEL PUMP ASSEMBLY - LOWER
10	30275	COVER, FUEL PUMP
11	10-73013	SCREW, FUEL PUMP MOUNTING (1 1/2") - UPPER PUMP
12	10-30273	SCREW, FUEL PUMP MOUNTING (1 7/8") - UPPER PUMP
13	10-73013	SCREW, FUEL PUMP MOUNTING (1 1/2") - LOWER PUMP
14	10-30273	SCREW, FUEL PUMP MOUNTING (1 7/8") - LOWER PUMP
15	32-32256A1	FUEL LINE ASSEMBLY, PUMP TO CARBURETOR (9 7/8")
16	22-30174	ELBOW, UPPER CARBURETOR STRAINER COVER (90)
17	22-30175	SLEEVE, CARBURETOR STRAINER COVER ELBOW
18	22-30177	NUT, UPPER CARBURETOR STRAINER COVER ELBOW
19	54-22627	CLIP, FUEL LINE TO CYLINDER BLOCK
20	10-62568	SCREW, FUEL LINE CLIP TO CYLINDER BLOCK (3/8")
21	8M0084613	"D" WASHER, FUEL LINE CLIP SCREW
22	32-31552A1	FUEL LINE ASSEMBLY, PUMP TO PUMP (12 3/8")
23	32-31553A1	FUEL LINE ASSEMBLY, PUMP TO CARBURETOR (19 3/4")
24	22-30174	ELBOW, LOWER FUEL PUMP INLET (90)
25	22-30175	SLEEVE, FUEL PUMP INLET ELBOW
26	22-30177	NUT, FUEL PUMP INLET ELBOW
27	32-30176	FUEL LINE, ADAPTOR TO LOWER FUEL PUMP (18")
28	22-37682	ELBOW, FUEL LINE TO ADAPTOR
29	30186	ADAPTOR, CHECK UNIT (FUEL LINE)
30	30187	STEM, CHECK UNIT ADAPTOR
31	25-16524	"O" RING, ADAPTOR STEM
32	24-30189	SPRING, ADAPTOR STEM
33	30188	CUP WASHER, ADAPTOR
34	10-69029	SCREW, ADAPTOR TO BOTTOM COWL (1 3/4")
35	10-37561	SCREW, ADAPTOR TO BOTTOM COWL (2 1/2")
36	11-8M0207775	NUT, ADAPTOR FASTENING SCREW
37	32-31584A1	FUEL LINE ASSEMBLY, MIDDLE CARB, TO BOTTOM CARB.
38	22-8M0123050	ELBOW, FUEL LINE TO CARBURETOR (45)
39	32-49454A1	FUEL LINE ASSEMBLY, TOP CARB. TO MIDDLE CARB.

▶GEAR HOUSING ASSEMBLY, COMPLETE (PAGE 1) (55 parts)

Ref	OEM Part #	Part Name
-	1623-3912A9	GEAR HOUSING ASSEMBLY, COMPLETE (LONG SHAFT) SEE NOTE BELOW
1	1623-5244A14	GEAR HOUSING ASSEMBLY
2	16-57921	STUD, GEAR HOUSING TO DRIVE SHAFT HOUSING (4")
3	16-8M0133358	STUD, GEAR HOUSING TO DRIVE SHAFT HOUSING (2 1/16")
4	16-8M0034463	STUD, WATER PUMP BASE AND BODY TO GEAR HOUSING (3 3/8")
5	16-57919	STUD, WATER PUMP BASE AND BODY TO GEAR HOUSING (3 5/16")
6	31-32898T	BEARING, ROLLER - DRIVE SHAFT
7	45-47434	DRIVE SHAFT (LONG SHAFT)
8	43-49751	DEAR, PINION - DRIVE SHAFT
9	11-35921	NUT, PINION GEAR TO DRIVE SHAFT
10	15-30278A1	SHIM, WATER PUMP BASE TO GEAR HOUSING (.002-3-5-10)
11	30-63326T	BEARING, BALL - DRIVE SHAFT (SERIAL #2653880 AND UP) Comment: SERIAL 02653880-09999999
12	53-30726	RING, RETAINING - BALL BEARING
13	27-32438	GASKET, WATER PUMP BASE TO GEAR HOUSING
14	25-8M0204651	"O" RING, WATER PUMP BASE
15	46-48747A1	WATER PUMP BASE ASSEMBLY (PLASTIC)
16	26-94038	OIL SEAL, WATER PUMP BASE
17	26-16977	OIL SEAL, WATER PUMP BASE
18	17-35973	DOWEL PIN, WATER PUMP BASE TO WATER PUMP BODY
19	27-8M0090319	GASKET, LOWER - WATER PUMP BASE TO FACE PLATE
20	8M0204677	PLATE, FACE - WATER PUMP BASE TO WATER PUMP BODY
21	27-858524	GASKET, UPPER - FACE PLATE TO WATER PUMP BODY
22	46-96148T1	WATER PUMP BODY ASSEMBLY (PLASTIC)
23	48752T	INSERT, WATER PUMP BODY (PLASTIC)
24	26-16977	OIL SEAL, WATER PUMP BODY
25	26-38970	SEAL, RUBBER - WATER INLET TUBE
26	47-89984T4	IMPELLER - WATER PUMP
27	17-8M0214994	PIN, IMPELLER DRIVE
28	10-30720	SCREW, WATER PUMP BODY TO GEAR HOUSING (2 1/4")
29	13-26992	LOCKWASHER, WATER PUMP BODY SCREW
30	12-8M0204649	WASHER, WATER PUMP BODY FASTENING SCREW AND STUD
31	11-826709109	NUT, WATER PUMP FASTENING SCREW
32	12-36001	WASHER, WATER PUMP BODY FASTENING STUD
33	11-826709111	NUT, WATER PUMP BODY FASTENING STUD
34	25-8M0214918	RING, RUBBER - CENTRIFUGAL SLINGER (DRIVE SHAFT)
35	23-29804T	SLEEVE, GUIDE - WATER INLET TUBE
36	25-8M0214919	"O" RING, UPPER - DRIVE SHAFT
37	37641001	SEAL, EXHAUST TUBE
38	38051	PLATE, SUPPORT - EXHAUST TUBE SEAL
39	76062A1	SHAFT, SHIFT - LOWER
40	53-29641	CLIP, RETAING - SHIFT SHAFT
41	25-25439	"O" RING, SHIFT SHAFT BUSING
42	23-77631A2	BUSHING ASSEMBLY, SHIFT SHAFT
43	26-892361	OIL SEAL, SHIFT SHAFT BUSHING (UPPER)
44	12-31266	WASHER, RUBBER - SHIFT SHAFT BUSHING
45	78036	SPACER, LOWER - REVERSE LOCKING
46	43308T1	CAM, REVERSE LOCKING
47	22-390721	PLUG, PIPE - SHIFT SHAFT GREASE FILLER HOLE
48	10-79953Q04	SCREW, GREASE FILLER AND VENT HOLE
49	12-191833	WASHER, GREASE FILLER AND VENT HOLE SCREW
50	10-29608	SCREW, GEAR HOUSING FLUSHING HOLE ALUMINUM
51	27-8M0214916	GASKET, GEAR HOUSING FLUSHING HOLE SCREW ALUMINUM
52	26-8M0214917	SEAL, GEAR HOUSING FLUSHING HOLE ALUMINUM
53	19-48750	PLUG, GEAR HOUSING FLUSHING HOLE PLASTIC
54	12-8M0204663	WASHER, GEAR HOUSING FLUSHING HOLE PLUG PLASTIC

▶GEAR HOUSING ASSEMBLY, COMPLETE (PAGE 2) (35 parts)

Ref	OEM Part #	Part Name
-	1623-3912A9	GEAR HOUSING ASSEMBLY, COMPLETE (LONG SHAFT) SEE NOTE BELOW
1	1623-5244A14	GEAR HOUSING ASSEMBLY SEE PAGE 30 FOR PARTS BREAKDOWN
55	760394	CAM, SHIFT Comment: SERIAL 02709828-09999999
56	30625	FOLLOWER, CAM
57	30624	SLIDE, CROSS PIN
58	24-30622	SPRING, COMPRESSION - CAM FOLLOWER
59	15-30923A1	SHIM, BEARING OUTER RACE TO GEAR HOUSING (.002-3-5-10)
60	31-30894A1	TAPERED ROLLER BEARING ASSEMBLY
61	31-30895T	BEARING, ROLLER - FORWARD GEAR
62	43-53100A3	FORWARD GEAR ASSEMBLY
63	52-822539T	RATCHET, SLIDING CLUTCH
64	17-8M0100263	PIN, CROSS - RATCHET TO PROPELLER SHAFT
65	24-30893	SPRING, RETAINING - CROSS PIN
66	44-93003	SHAFT, PROPELLER (FINE THREAD)
67	43-31887	REVERSE GEAR ASSEMBLY
68	15-29955A1	SHIM, THRUST WASHER TO GEAR HOUSING (.002-3-5-10)
69	12-71143A1	WASHER, THRUST - BEARING CARRIER TO GEAR HOUSING
70	30-31265	BEARING, BALL - REVERSE GEAR
71	25-29976	"O" RING, BEARING CARRIER
72	52132T1	BEARING CARRIER ASSEMBLY
73	31-30956T	BEARING, ROLLER - BEARING CARRIER
74	26-8M0204670	OIL SEAL, BEARING CARRIER
75	28-30281	KEY, LOCATING - BEARING CARRIER
76	14-52700	TAB WASHER, GEAR HOUSING COVER
77	52699	COVER, GEAR HOUSING
78	97-31640Q4	TRIM TAB, GEAR HOUSING
79	10-32470	SCREW, TRIM TAB TO GEAR HOUSING (1 3/4")
80	12-45176	WASHER, GEAR HOUSING TO DRIVE SHAFT HOUSING STUDS
81	11-8M0204653	NUT, GEAR HOUSING TO DRIVE SHAFT HOUSING STUDS
82	10-34353	SCREW, GEAR HOUSING TO DRIVE SHAFT HOUSING (1")
83	65091Q01	THRUST HUB AND WASHER ASSEMBLY PART OF A-1623-3486A8 AND A9 Comment: PART OF A-1623-3486A8 AND A9 GEAR HSG ASS'Y COMPLETE
84	12-29590	WASHER, CUPPED - THRUST HUB Comment: PART OF A-1623-3486A8 AND A9 GEAR HSG ASS'Y COMPLETE
85	12-31211Q03	WASHER, SPLINED - PROPELLER NUT
86	14-816629Q	TAB WASHER, PROPELLER NUT
87	11-52707Q1	NUT, PROPELLER (FINE THREAD) ---- PART OF A1623-3486A8 AND A

▶MISCELLANEOUS PARTS/ACCESSORIES (1 parts)

Ref	OEM Part #	Part Name
-	79-73370A3	TACHOMETER ASSEMBLY

▶OVERSIZE PISTONS AND RINGS (1 parts)

Ref	OEM Part #	Part Name
--	39-78811A12	RING, PISTON (.015 OVERSIZE) - 1/16" THICK

▶STARTER MOTOR, STARTER SOLENOID, RECTIFIER AND WIRING HARNES (55 parts)

Ref	OEM Part #	Part Name
1	84-69236A1	WIRING HARNESS, INTERNAL
2	30050	TERMINAL, HARNESS AND MERCURY SWITCH LEADS
3	26079A2	PLATE, WIRING HARNESS TO BOTTOM COWL
4	10-45893	SCREW, HARNESS PLATE FASTENING
5	54-76368	CLAMP, WIRING HARNESS TO BOTTOM COWL
6	10-45862	SCREW, WIRING HARNESS CLAMP TO BOTTOM COWL (7/8")
7	13-26996	LOCKWASHER, WIRING HARNESS CLAMP SCREW
8	12-847883	WASHER, WIRING HARNESS CLAMP SCREW
9	24-28975	SPRING, GARTER - INTERNAL WIRING HARNESS
10	10-98256	SCREW, GROUND WIRE TO BOTTOM COWL
11	13-25244	LOCKWASHER, GROUND WIRE SCREW
12	13-24669	LOCKWASHER, GROUND WIRE SCREW
13	25-26547	GROMMET, RECTIFIER TO SWITCH BOX WIRE
14	54-648552	CLIP, WIRING HARNESS TO FRONT BRACKET (1/8")
15	10-8M0113176	SCREW, WIRING HARNESS TO FRONT BRACKET (3/8")
16	8M0084613	"D" WASHER, WIRING HARNESS CLIP SCREW
17	45559	TERMINAL BLOCK, STATOR LEADS
18	10-48409	SCREW, TERMINAL BLOCK FASTENING (5/8")
19	10-62568	SCREW, STATOR LEADS TO TERMINAL BLOCK (3/8")
20	332-2986A21	SWITCH BOX ASSEMBLY
21	12-45075	WASHER, SWITCH BOX TERMINAL
22	11-45076	NUT, SWITCH BOX TERMINAL
23	10-45218	SCREW, SWITCH BOX (3/8")
24	10-64279	SCREW, SWITCH BOX TO FRONT MOUNTING BRACKET (1")
25	11-8M0207775	NUT, SWITCH BOX SCREW
26	84-93389A12	CABLE, WIRE - STARTER MOTOR TO FRONT SUPPORT BRACKET
27	10-69035	SCREW, WIRE CABLE TO STARTER MOTOR
28	50-48643A1	STARTER MOTOR ASSEMBLY
29	10-73657	SCREW, STARTER MOTOR CRANKCASE FLANGE (1 1/2")
30	10-31984	SCREW, STARTER MOTOR CRANKCASE FLANGE (1 3/8")
31	13-8M0204647	LOCKWASHER, STARTER MOTOR SCREW
32	53507	BRACKET, STARTER MOTOR SUPPORT
33	10-25299	SCREW, STARTER MOTOR TO SUPPORT BRACKET (3/4")
34	13-8M0204647	LOCKWASHER, STARTER MOTOR SCREW
35	12-26825	WASHER, STARTER MOTOR SCREW
36	10-32293	SCREW, SUPPORT BRACKET TO CYLINDER BLOCK (1 3/4")
37	12-26825	WASHER, SUPPORT BRACKET SCREW
38	11-29250	NUT, SUPPORT BRACKET SCREW
39	13-26992	LOCKWASHER, STARTER MOTOR TERMINAL
40	11-20890	NUT, STARTER MOTOR TERMINAL
41	25661T1	SOLENOID, STARTER (NOT AS SHOWN)
42	10-69028	SCREW, SOLENOID TO COIL BRACKET (3/4")
43	13-26992	LOCKWASHER, STARTER SOLENOID FASTENING SCREW
44	269011	BUMPER, RUBBER - STARTER SOLENOID
45	10,13-26996	LOCKWASHER, SOLENOID TERMINAL
46	10,11-68219	NUT, SOLENOID TERMINAL
47	48396	CABLE, WIRE - STARTER MOTOR TO SOLENOID
48	13-8M0204647	LOCKWASHER, SOLENOID TERMINAL (5/16")
49	11-22053	NUT, SOLENOID TERMINAL (5/16")
50	46265	BOOT, SOLENOID TERMINAL
51	78614A1	RECTIFIER ASSEMBLY
52	10-64278	SCREW, RECTIFIER TO MOUNTING BRACKET (1")
53	11-8M0207775	NUT, RECTIFIER MOUNTING SCREW
54	12-45075	WASHER, RECTIFIER STATOR LEAD TERMINAL
55	11-45076	NUT, FASTENING - RECTIFIER STATOR LEADS

▶TOP COWL AND SUPPORT BRACKETS (47 parts)

Ref	OEM Part #	Part Name
1	2114-3806	COWL, TOP
2	52733A9	RETAINER ASSEMBLY, TOP COWL
3	35496	PAD, BUMPER _ TOP COWL RETAINER
4	37-61018A1	EMBLEM, TOP COWL RETAINER
5	10-74824	SCREW, RETAINER TO TOP COWL (1 1/4")
6	13-39107	LOCKWASHER, RETAINER TO TOP COWL SCREW
7	76370	SHIELD, SHIELD TO TOP COWL (5/8")
8	13-37371	LOCKWASHER, SHIELD SCREW
10	47341A11	ROPE, STARTER (FOR MANUAL STARTING ONLY)
11	46144	BRACKET, COWL LATCH TOP COWL FASTENING
12	10-21091	SCREW, COWL LATCH BRACKET TO TOP COWL (1 1/8")
13	12-37998	WASHER, LATCH BRACKET SCREW (1/16" THICK)
14	12-37998	WASHER, LATCH BRACKET SCREW (1/32" THICK)
15	37412	LEVER, CLAMPING - TO COWL MOUNTING
16	23-26819	BUSHING, NYLON - CLAMPING LEVER
17	12-38006	WASHER, CLAMPING LEVER
18	23-31293	BUSHING, RUBBER - CLAMPING LEVER
19	11-30428	FASTNER, CLAMPING LEVER
20	17-29077	PIN, ROLL - CLAMPING LEVER
21	52739	HINGE, COWL LATCH - TOP COWL
22	94918F1	LEVER, COWL LATCH HINGE
23	17-58998	PIN, ROLL - COWL LATCH LEVER TO HINGE
24	24-53019	SPRING, COWL LATCH HINGE
25	55455	HOOK, TOP COWL LATCH - REAR
26	10-22956	SCREW, REAR HOOK TO TOP COWL (7/8")
27	13-26992	LOCKWASHER, REAR HOOK MOUNTING SCREW
28	79897A4	FRAME, TOP COWL SUPPORT
29	37-45201	DECAL, TIMING
30	46096	MOUNT, RUBBER - TOP COWL FRAME (HEAVY DUTY)
31	11-8267089	NUT, RUBBER MOUNT TO TOP COWL FRAME
32	54685	BRACKET, TOP COWL SUPPORT - REAR
33	31014	MOUNT, RUBBER - REAR SUPPORT BRACKET
34	13-26992	LOCKWASHER, RUBBER MOUNT TO REAR SUPPORT BRACKET
35	12-69057	WASHER, RUBBER MOUNT TO REAR SUPPORT BRACKET
36	11-20088	NUT, RUBBER MOUNT TO REAR SUPPORT BRACKET
37	10-26065	SCREW, REAR BRACKET TO TOP COWL FRAME (1")
38	11-29250	NUT, REAR BRACKET SCREW
39	10-35386	SCREW, REAR BRACKET TO BOTTOM COWL (1")
40	13-8M0204647	LOCKWASHER, REAR SUPPORT BRACKET SCREW
41	77116A1	BRACKET ASSEMBLY, TOP COWL SUPPORT - FRONT
42	10-78841	SCREW, FRONT BRACKET TO BOTTOM COWL (1 1/2")
43	11-29250	NUT, FRONT SUPPORT BRACKET SCREW
44	10-73657	SCREW, FRONT BRACKET TO TOP COWL FRAME (1 1/2")
45	13-8M0204647	LOCKWASHER, FRONT SUPPORT BRACKET SCREW
46	37640	MOUNT, RUBBER - FRONT SUPPORT BRACKET
47	13-8M0204647	LOCKWASHER, RUBBER MOUNT TO FRONT SUPPORT BRACKET
48	11-22053	NUT, RUBBER MOUNT TO FRONT SUPPORT BRACKET

100-Hour / Annual Service Checklist

Regular maintenance keeps your Mercury 1250 running reliably season after season. Most of these tasks can be performed with basic tools and the factory service manual.

Replace water pump impeller and inspect wear plate
Change engine oil and oil filter (check drain plug washer)
Replace spark plugs and check ignition timing
Drain and refill lower unit gear oil; inspect for water contamination
Inspect fuel lines, primer bulb, and fuel filter for deterioration
Check and replace sacrificial anodes (zinc or aluminum)
Inspect propeller for damage; check shaft seal and cotter pin
Check valve clearance (refer to service manual for specifications)
Lubricate all grease points (steering, tilt tube, shift linkage)
Inspect control cables and throttle/shift linkage for smooth operation

Pro Tip: Always flush the engine with fresh water after saltwater use — even a quick 10-minute flush significantly extends component life.
Pro Tip: Use fuel stabilizer in the tank before winter storage, and fog the cylinders to prevent internal corrosion during extended periods of non-use.

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