Parts for MerCruiser Race Engine and Drive 420 GM 454 V-8 1987-1989 Seawater Pump Assembly (Serial No. 0A398941 - 0D725499)
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| #1 | 46-72774A32 | PUMP ASSEMBLY, Sea Water - Complete (1 required per assembly) |
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46-72774A32 - Sea Water Pump Assembly [ More info ]
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18-3600 - Sea Water Pump, 46-72774A32 [ More info ]
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43210-0001 - Mercruiser Cooling Pump, Bronze [ More info ]
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| #2 | 46-72774A40 | BODY ASSEMBLY, Sea Water - Complete (1 required per assembly) |
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46-72774A40 - Two Piece Pump Body, See Parts Bul NO.96-8, NLA [ More info ] Unavailable |
| #3 | 87631A 4 | COVER KIT, Seawater Pump (1 required per assembly) |
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87631A 4 - Cover Kit [ More info ] Unavailable |
| #4 | 27-805215 1 | GASKET, Cover To Outer Wear Plate (1 required per assembly) |
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27-805215 1 - Gasket - Priced Individually [ More info ]
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| #5 | 12-20084 | WASHER, (.328 x .562 x .062) (5 required per assembly) |
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12-20084 - Washer, (.328 X .562 X .062) [ More info ]
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| #6 | 10-73275 | SCREW, (.312-18 x 2.88) (5 required per assembly) |
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10-73275 - Screw - Priced Individually [ More info ]
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| #6 | 10-99347 | SCREW, (.312-18 x 3.75) (3 required per assembly) |
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10-99347 - Screw [ More info ]
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| #7 | 94916 | WEAR PLATE (1 required per assembly) |
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94916 - Wear Plate [ More info ]
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| #8 | 27-94914 | GASKET, Body To Wear Plate (2 required per assembly) |
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27-94914 - Body To Wear Plate Gasket [ More info ]
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18-0386 - Gasket, 27-94914 [ More info ]
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| #9 | 19-59504 | PLUG, Impeller (1 required per assembly) |
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| #10 | 47-59362 1 | IMPELLER, Use Without Key (1 required per assembly) |
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47-59362 1 - Impeller [ More info ] Unavailable |
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47-59362T 1 - Impeller [ More info ]
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18-3087 - Impeller, 47-59362 [ More info ]
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47-59362Q01 - Impeller [ More info ]
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| #11 | 28-56662 | KEY, Use Where Applicable (1 required per assembly) |
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28-56662 - Key - Priced Individually [ More info ]
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28-8M0032837 - Key - Priced Individually [ More info ]
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| #12 | 94576 | WEAR PLATE, Inner (1 required per assembly) |
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94576 - Wear Plate [ More info ] Unavailable |
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8M0204674 - Wearplate [ More info ]
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| #13 | 25-94288 | QUAD RING (1 required per assembly) |
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25-94288 - Ring - Quad [ More info ]
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25-8M0215007 - Quad Ring [ More info ]
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| #14 | 46-94913A 1 | HOUSING ASSEMBLY, Water Pump, Seawater Pump (1 required per assembly) |
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46-94913A 1 - Water Pump Housing [ More info ]
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| #15 | 26-90562 | SEAL, (1.254 x .312) (2 required per assembly) |
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26-90562 - Seal - Priced Individually [ More info ]
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18-2011 - Seal 26-90562 [ More info ]
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| #16 | 30-72961 | BEARING, Ball (2 required per assembly) |
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30-72961 - Ball Bearing [ More info ]
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18-1398 - Bearing, 30-72961 [ More info ]
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| #17 | 59501A 1 | SHAFT (1 required per assembly) |
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59501A 1 - Water Pump Shaft [ More info ]
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| #18 | 53-23720 | RING, Retaining (1 required per assembly) |
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53-23720 - Ring - Retaining [ More info ]
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| #19 | 26-72785 | SEAL, Seawater Pump Shaft (1 required per assembly) |
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18-0531 - Seal, 26-72785 [ More info ]
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| #20 | 47530 | HUB, Seawater Pump Pulley (1 required per assembly) |
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47530 - Hub [ More info ]
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| #21 | 73798A 1 | PULLEY, Seawater Pump (1 required per assembly) |
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73798A 1 - Pulley - (Black) [ More info ] Unavailable |
| #22 | 10-47277 | SCREW, (.312-24 x .750) (4 required per assembly) |
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10-47277 - Screw - Priced Individually [ More info ]
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| #23 | 13-39107 | LOCKWASHER, (.312) (4 required per assembly) |
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13-39107 - LockWasher - Priced Individually [ More info ]
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| #24 | 22-32802 | PLUG, Pipe (.125-27), For Seawater Pump Body (1 required per assembly) |
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22-32802 - Plug , Priced Individually [ More info ] Unavailable |
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22-32802 1 - Plug, Brass, Priced Individually [ More info ] Unavailable |
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22-32802 2 - Brass Pipe Plug, Priced Individually [ More info ]
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18-4263 - Pipe Plug, 1/8-27 NPT, Brass [ More info ]
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| #25 | 57-74271T | V BELT (1 required per assembly) |
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57-74271T - V-Belt [ More info ]
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57-74271Q - V-Belt, 35.125 Lg [ More info ]
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18-15345 - V-Belt [ More info ]
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| #26 | 47489A 2 | BRACKET ASSEMBLY, Seawater Pump Mount (1 required per assembly) |
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47489A 2 - Bracket Kit,NLA [ More info ] Unavailable |
| #27 | 10-34354 | SCREW, (.375-16 x 1.50) (1 required per assembly) |
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10-34354 - Screw - Priced Individually [ More info ]
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| #28 | 13-35048 | LOCKWASHER, (.375) (1 required per assembly) |
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13-35048 - LockWasher - Priced Individually [ More info ]
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| #29 | 13-32993 | LOCKWASHER, (.437) (1 required per assembly) |
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13-32993 - LockWasher - Priced Individually [ More info ]
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| #30 | 12-27025 | WASHER (1 required per assembly) |
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12-27025 - Washer - Priced Individually [ More info ]
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| #31 | 10-47462 | SCREW, (.437-14 x 1.250) (1 required per assembly) |
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10-47462 - Screw - Priced Individually [ More info ]
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| #32 | 10-48948 | SCREW, (.437-14 x .880) (1 required per assembly) |
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10-48948 - Screw, NLA [ More info ]
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| #33 | 12-29330 | WASHER, For Slot (1 required per assembly) |
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12-29330 - Washer, Nylon [ More info ]
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| #34 | 64177 | BRACE, Seawater Pump (1 required per assembly) |
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64177 - Brace, NLA [ More info ] Unavailable |
| #37 | ORDLOCAL | ORDER PART LOCAL, Washer (.470 x .922 x .065) (1 required per assembly) |
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ORDLOCAL - ORDER PART LOCAL [ More info ] Unavailable |
| #38 | 10-35786 | SCREW, (.375-24 x 1.00) (1 required per assembly) |
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10-35786 - Screw - Priced Individually [ More info ]
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| #40 | 11-46335 | NUT, (.375-24) (1 required per assembly) |
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11-46335 - Nut (.375-24) [ More info ]
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