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Mercruiser Model 250 1977

 
Key Part Number Description Qty Req Comments Price Qty on Hand  
- 5356A3 GEAR HOUSING ASSEMBLY, COMPLETE (SEE NOTE BELOW0
1 5356A4 GEAR HOUSING ASSEMBLY
2 37972 PIN, SHIFT CRANK - GEAR HOUSING
3 46911 STUD, GEAR HOUSING TO DRIVE SHAFT HOUSING (3 3/16")
4 56298 STUD, GEAR HOUSING TO DRIVE SHAFT HOUSING (1 31/32"0 2
5 45577 SEAL, GEAR HOUSING
6 56297 STUD, WATER PUMP BASE AND BODY TO GEAR HOUSING (3 3/8")
7 69501 STUD, WATER PUMP BASE AND BODY TO GEAR HOUSING (3 1/4") 2
8 46912 PIN, DOWEL - GEAR HOUSING TO DRIVE SHAFT HOUSING 2
9 35934 BEARING, ROLLER - DRIVE SHAFT
10 66884 INSERT, WATER PICKUP (PORT SIDE)
10 66885 INSERT, WATER PICKUP (STARBOARD SIDE)
11 76156 SCREW, INSERT TO GEAR HOUSING (1 7/8")
12 45812 NUT, INSERT SCREW
13 55757A1 DRIVE SHAFT ASSEMBLY
14 30545 PIN, DRIVE SHAFT
15 34576 SPRING, COMPRESSION - DRIVE SHAFT
16 30613 "O" RING, UPPER - DRIVE SHAFT
17 61027 GEAR, PINION - DRIVE SHAFT
18 35921 NUT, PINION GEAR TO DRIVE SHAFT
19 57007A1 SHIM, DRIVE SHAFT BEARING TO GEAR HOUSING (.002-3-5-10-20)
20 53079A1 TAPERED ROLLER BEARING ASSEMBLY, DRIVE SHAFT
21 33146 GASKET, WATER PUMP BASE TO GEAR HOUSING
22 33145 "O" RING, WATER PUMP BASE
23 57234A1 WATER PUMP BASE ASSEMBLY
24 33144 OIL SEAL, WATER PUMP BASE
25 31507 OIL SEAL, WATER PUMP BASE
26 35973 DOWEL PIN, WATER PUMP BASE TO WATER PUMP BODY 2
27 32433 GASKET, LOWER - WATER PUMP BASE TO FACE PLATE
28 32435 PLATE, FACE - WATER PUMP BASE TO WATER PUMP BODY
29 32434 GASKET, UPPER - FACE PLATE TO WATER PUMP BODY
30 64141A1 WATER PUMP BODY ASSEMBLY
31 48752 INSERT, WATER PUMP BODY
33 38970 SEAL, RUBBER - WATER INLET TUBE
34 65960 IMPELLER, WATER PUMP
35 56654 PIN, IMPELLER DRIVE
36 30720 SCREW, WATER PUMP BODY TO GEAR HOUSING(2 1/4)
37 36001 WASHER, WATER PUMP BODY SCREW
38 35888 NUT, WATER PUMP BODY STUDS (1/4-28) 2
39 45592 NUT, WATER PUMP BODY STUDS (5/16-24)
40 29245 WASHER, WATER PUMP BODY STUD 3
41 30271 RING, RUBBER - CENTRIFUGAL SLINGER (DRIVE SHAFT)
42 29804 SLEEVE, GUIDE - WATER INLET TUBE
43 77481 SHAFT, SHIFT - LOWER
44 20233 CLIP, RETAINING - SHIFT SHAFT
45 27880 WASHER, LOWER SHIFT SHAFT AND CRANK
46 25439 "O" RING, SHIFT SHAFT BUSHING
47 30617A2 BUSHING ASSEMBLY, SHIFT SHAFT
48 46021 OIL SEAL, SHIFT SHAFT BUSHING
49 31266 WASHER, RUBBER - SHIFT SHAFT BUSHING
50 29395 WASHER, SHIFT SHAFT
51 28634 SCREW, GEAR HOUSING GREASE FILLER AND VENT HOLE
52 20260 WASHER, GEAR HOUSING GREASE FILLER AND VENT HOLE SCREW