Parts for 496 Mag (H.o. Model) 8.1L (496 Cu In) V8 GM MerCruiser Engines - Gas Cooling System Fresh Water Components
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Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| #1 | 863771T | CROSSOVER COOLANT (1 required per assembly) |
| #2 | 881620001 | GASKET CYLINDER HEAD TO CROSSOVER (2 required per assembly) — Replaces: 881620 |
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27-881620001 - Cylinder Head To Crossover Gasket [ More info ] |
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| #3 | 881593 | BOLT (4 required per assembly) |
| #4 | 861947 | SEAL (1 required per assembly) |
| #5 | 863609 | SCREW (2 required per assembly) |
| #6 | 12524 | PLUG (2 required per assembly) |
| #7 | 805218T | SENSOR COOLANT (1 required per assembly) |
| #8 | 806490T | SENDER TEMPERATURE (1 required per assembly) |
| #9 | 8M0076464 | THERMOSTAT-160DEG (1 required per assembly) — Replaces: 863358T |
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18-43017 - Thermostat, 160 Degrees, S985009, 863358, 863358T [ More info ] |
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| #10 | 865078 | SEAL THERMOSTAT (1 required per assembly) |
| #11 | 861949T | RETAINER THERMOSTAT (1 required per assembly) |
| #12 | 8M0207778 | WASHER @5 (2 required per assembly) — Replaces: 12038 |
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12-8M0207778 - WASHER Note: Priced Individually [ More info ] |
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| #13 | 4000354 | SCREW @5 (2 required per assembly) |
| #14 | 865066 | SEAL HEAT EXCHANGER TO CROSSOVER (2 required per assembly) |
| #15 | 863903A01 | EXCHANGER-HEAT (1 required per assembly) |
| #16 | 863392 | PAD HEAT EXCHANGER (2 required per assembly) |
| #17 | 629101 | ELBOW (1 required per assembly) |
| #18 | 815504280 | CLAMP WORM GEAR HOSE (2 required per assembly) |
| #19 | 863303 | HOSE COOLANT BLEED (1 required per assembly) |
| #20 | 815504206 | CLAMP WORM GEAR HOSE (2 required per assembly) |
| #21 | 861944A1 | RESERVOIR COOLANT (1 required per assembly) |
| #22 | 862863 | CAP COOLANT RESERVOIR (1 required per assembly) |
| #23 | 863304 | HOSE RESERVOIR TO CROSSOVER (1 required per assembly) |
| #24 | 815504212 | CLAMP WORM GEAR HOSE (2 required per assembly) |
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54-815504212 - Clamp [ More info ] Unavailable |
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| #25 | 8552141 | FITTING STRAIGHT HOSE (1 required per assembly) |
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22-855214 1 - Fitting [ More info ] Unavailable |
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22-8M0214961 - FITTING [ More info ] Unavailable |
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| #26 | 863388 | SCREW (M10X16) (3 required per assembly) |
| #27 | 862986 | BRACKET COOLANT RESERVOIR (1 required per assembly) |
| #28 | 81893412 | SCREW (3 required per assembly) |
| #29 | 865221 | HOSE CROSSOVER TO PUMP (1 required per assembly) |
| #30 | 815504232 | CLAMP WORM GEAR (2.50 DIAMETER) HOSE (2 required per assembly) |
| #31 | 815504221 | CLAMP HOSE (1 required per assembly) — Replaces: 865373 |
| #32 | 891717 | COVER HEAT EXCHANGER END (Use With 3.75 Inch Diameter Heat Exchanger) (2 required per assembly) |
| #33 | 891716 | GASKET HEAT EXCHANGER COVER (Use With 3.75 Inch Diameter Heat Exchanger) (2 required per assembly) |
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27-891716 - Heat Exchanger Gasket, priced individually [ More info ] |
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| #34 | 8M0039163 | O RING (2 required per assembly) — Replaces: 814878 |
| #35 | 98261 | SCREW (2 required per assembly) |
| #36 | 8M2000004 | BRACKET FLUSH MOUNT (1 required per assembly) |
| #N.S. | 8M0074364 | CAP HOSE CLAMP END (AR required per assembly) — Replaces: 8079923, 8M6500037 |
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198M0074364 - Cover-Clamp - Priced Individually [ More info ] |
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| #NS | 863355 | DECAL CAUTION HEAT EXCHANGER (1 required per assembly) |






