Parts for MerCruiser 454 Mag. MPI Horizon (Gen. VI) GM 454 V-8 Water Pump & Front Cover
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| #1 | 807211 | VALVE, Relief (1 required per assembly) (30 PSI) |
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807211 - Relief Valve [ More info ]
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| #2 | 850454 1 | PUMP ASSEMBLY, Circulating Water (1 required per assembly) |
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850454 1 - 850454 1 - PUMP ASSEMBLY Cir * [ More info ] In stock  Replaced by 46-8M0113735 |
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46-8M0113735 - Water Pump Assembly [ More info ]
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18-3577-1 - Circulating Water Pump, Big Block GM Engines [ More info ]
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850454R03 - Water Pump Assembly - Remanufactured [ More info ]
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| #3 | 27-49110 | GASKET, Circulating Water Pump Mount (2 required per assembly) |
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27-49110 - Gasket [ More info ]
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18-0903 - Gasket, 27-49110 [ More info ]
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| #4 | 10-811574 | SCREW, (.375-16 x 1.750) (3/8-16 X 1-3/4 IN.) (4 required per assembly) |
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10-811574 - 10-811574 - SCREW (.375-16 x O [ More info ] Unavailable Replaced by 10-805611 |
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10-805611 - Bolt [ More info ]
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| #5 | 807729T | PULLEY (1 required per assembly) |
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807729T - Water Pump Pulley [ More info ]
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| #6 | 57-861050 | BELT (1 required per assembly) |
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57-861050 - 57-861050 - BELT O [ More info ] Unavailable Replaced by 57-863876 7 |
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57-863876 7 - 57-863876 7 - BELT-SERPENTINE O [ More info ] Unavailable Replaced by 57-865615007 |
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57-865615007 - 57-865615007 - BELT-SERP-2462 MM O [ More info ] Unavailable Replaced by 57-865615Q07 |
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57-865615Q07 - Belt [ More info ]
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| #7 | 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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| #8 | 845625T 2 | DAMPER (1 required per assembly) |
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845625T 2 - Damper [ More info ]
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| #9 | 807730 1 | PULLEY (1 required per assembly) |
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807730 1 - Pulley - CrankShaft [ More info ]
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| #10 | 10-34353 | SCREW, (.375-16 x 1.00) (3 required per assembly) |
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10-34353 - Screw - Priced Individually [ More info ]
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| #11 | 10-811559 | SCREW, (.500-20 x 2.500) (1 required per assembly) |
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10-811559 - 10-811559 - SCREW (.500-20 x O [ More info ] Unavailable Replaced by 10-845627 |
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10-845627 - Screw [ More info ]
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| #12 | 12-49103 | WASHER (1 required per assembly) |
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12-49103 - Washer [ More info ]
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| #13 | 845610T | COVER ASSEMBLY, Cylinder Front (1 required per assembly) |
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845610T - Timing Cover Assembly [ More info ]
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| #14 | 26-821947 1 | SEAL (1 required per assembly) |
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26-821947 1 - Seal [ More info ]
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| #15 | 27-850456 | GASKET, Front Cover Mount (1 required per assembly) |
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27-850456 - Gasket [ More info ]
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| #16 | 10-850455 | SCREW (1/4-20 X 1/2 IN.) (6 required per assembly) |
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10-850455 - Screw [ More info ]
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| #17 | 17-35312 | PIN, Dowel (1 required per assembly) |
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17-35312 - 17-35312 - PIN Dowel (1/4 In O [ More info ] Unavailable Replaced by 17-843378 |
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17-843378 - Pin -Dowel [ More info ]
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| #- | 27-811572A94 | GASKET SET-OVERHAUL (1 required per assembly) (454) |
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27-811572A94 - Gasket Set [ More info ]
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| #- | 27-805396A92 | GASKET SET-OVERHAUL (1 required per assembly) (8.2L) |
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27-805396A92 - Gasket Set [ More info ]
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