Parts for 425 GM 454 V-8 7.4L (454 Cu In) V8 GM MerCruiser Engines - Gas Seawater Pump Assembly (Serial # 0D725500 - 0D937011)
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Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| #2 | 72774A40 | MCM PART BUL.96-8 (1 required per assembly) |
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46-72774A40 - Two Piece Pump Body, See Parts Bul NO.96-8, NLA [ More info ] Unavailable |
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| #3 | 821707T1 | COVER SEAWATER PUMP (1 required per assembly) — Replaces: 8217071 |
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821707T 1 - Cover [ More info ] Unavailable |
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| #4 | 99347 | SCREW (5 required per assembly) |
| #5 | 20084 | WASHER @5 (5 required per assembly) |
| #6 | 8052151 | GASKET COVER TO OUTER WEAR PLATE (1 required per assembly) |
| #7 | 94916 | WEAR PLATE OUTER (1 required per assembly) |
| #8 | 94914 | GASKET BODY TO WEAR PLATE (2 required per assembly) |
| #9 | 59504 | PLUG IMPELLER (1 required per assembly) |
| #10 | 59362T1 | IMPELLER (1 required per assembly) — Replaces: 593621 |
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47-59362Q01 - Impeller [ More info ]
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| #11 | 8M0204674 | WEARPLATE INNER (1 required per assembly) — Replaces: 94576 |
| #12 | 94288 | RING-QUAD (1 required per assembly) |
| #13 | 818367A1 | HOUSING ASSEMBLY SEAWATER PUMP (1 required per assembly) |
| #14 | 90562 | SEAL (1.254 X .312) (2 required per assembly) |
| #15 | 818366A1 | SHAFT KIT (1 required per assembly) |
| #16 | 818745A1 | RING KIT (1 required per assembly) |
| #17 | 72961 | BEARING BALL (2 required per assembly) |
| #18 | 23720 | RING RETAINING (1 required per assembly) |
| #19 | 806930 | SEAL SEAWATER PUMP SHAFT (1 required per assembly) — Replaces: 821104 |
| #20 | 818365T | PULLEY-(BLACK) (1 required per assembly) |
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818365T - Pulley, Black [ More info ] Unavailable |
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| #21 | 39107 | LOCKWASHER @5 (1 required per assembly) |
| #22 | 21908 | NUT @5 (1 required per assembly) |
| #23 | 79953A2 | SCREW KIT-DRAIN (1 required per assembly) — Replaces: 28634A1, 79953 |
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10-79953A 2 - Drain Screw Kit [ More info ] Unavailable |
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10-79953Q 2 - Screw Kit - Priced Individually [ More info ] Unavailable |
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10-79953K04 - Drain Screw - Priced Individually [ More info ] |
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| #24 | 8M0204684 | O RING (1 required per assembly) — Replaces: 805726 |
| #25 | 818368A1 | BRACKET ASSY SEAWATER PUMP MOUNT (1 required per assembly) — Replaces: 823185A2 |
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818368A 1 - Bracket Assembly [ More info ] Unavailable |
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| #26 | 91903 | SCREW (.437-14 X 1.750) (3 required per assembly) |
| #27 | 98261 | SCREW (.375-16 X .750) (2 required per assembly) |
| #28 | 35048 | LOCKWASHER (.375) (2 required per assembly) |
| #29 | 47461 | SCREW (1 required per assembly) |
| #30 | 8M0113182 | PINION STUD (1 required per assembly) — Replaces: 8183811, 8183812 |
| #31 | 865193 | BUSHING (1 required per assembly) — Replaces: 818380, 818380T |
| #32 | 8M6500024 | PULLEY (1 required per assembly) — Replaces: 818382, 865598 |
| #33 | 859135 | NUT @5 (1 required per assembly) — Replaces: 817618 |
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11-859135 - Nut (7/16-20), Priced Individually [ More info ] |
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| #35 | 69143Q | V BELT, 40 LGTH (1 required per assembly) — Replaces: 69143T |
| #36 | 27025 | WASHER @5 (1 required per assembly) |
| #37 | 32993 | LOCKWASHER @5 (1 required per assembly) |
| #39 | 818379T | BRACKET IDLER (1 required per assembly) |
| #40 | 32993 | LOCKWASHER @5 (3 required per assembly) |






