Parts for MerCruiser 496 Mag (H.O. Model) Cooling System, Fresh Water Components
View diagram and parts list below.
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) |
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#2 | 27-881620001 | GASKET, Cylinder Head to Crossover (2 required per assembly) |
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#3 | 10-881593 | SCREW, (M10 x 30) (4 required per assembly) |
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#4 | 26-861947 | SEAL (1 required per assembly) |
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26-861947 - Seal [ More info ]
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#5 | 10-863609 | SCREW, (M6 x 14) (2 required per assembly) |
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#6 | 22-12524 | PLUG, (.375-18 x .475) Brass (2 required per assembly) |
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#7 | 805218T | SENSOR, Coolant (1 required per assembly) |
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#8 | 806490T | SENDER, Temperature (1 required per assembly) |
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#9 | 863358T | THERMOSTAT, 71°C (160°F) (1 required per assembly) |
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18-43017 - Thermostat S985009, 863358, 863358T [ More info ] |
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#10 | 25-865078 | SEAL, Thermostat (1 required per assembly) |
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#11 | 861949T | RETAINER, Thermostat (1 required per assembly) |
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#12 | 12-12038 | WASHER (2 required per assembly) |
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#13 | 10-40003 54 | SCREW, (M8 x 30) (2 required per assembly) |
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#14 | 26-865066 | SEAL, Heat Exchanger to Crossover (2 required per assembly) |
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#15 | 863903A01 | HEAT EXCHANGER (1 required per assembly) |
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#NS | 37-863355 | DECAL, Caution, Heat Exchanger (1 required per assembly) |
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#16 | 863392 | PAD, Heat Exchanger (2 required per assembly) |
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#17 | 22-62910 1 | FITTING, Elbow - 90 Degree (.125-27) (1 required per assembly) |
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#18 | 54-815504280 | CLAMP, Worm Gear (2 required per assembly) |
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#19 | 32-863303 | HOSE, Coolant Bleed (1 required per assembly) |
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32-863303 - Molded Hose [ More info ]
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#20 | 54-815504206 | CLAMP, Worm Gear (2 required per assembly) |
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#21 | 861944A 1 | RESERVOIR, Coolant (1 required per assembly) |
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#22 | 862863 | CAP, Coolant Reservoir (1 required per assembly) |
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#23 | 32-863304 | HOSE, Reservoir to Crossover (1 required per assembly) |
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#24 | 54-815504212 | CLAMP, Worm Gear, Hose (2 required per assembly) |
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#25 | 22-855214 1 | FITTING, Straight Hose (1 required per assembly) |
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#26 | 10-863388 | SCREW, (M10 x 16) (3 required per assembly) |
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#27 | 862986 | BRACKET, Coolant Reservoir (1 required per assembly) |
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#28 | 10-818934 12 | SCREW, (M8 x 12) (3 required per assembly) |
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#29 | 32-865221 | HOSE, Crossover to Pump (1 required per assembly) |
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#30 | 54-8M2001490 | CLAMP, Worm Gear (1 required per assembly) |
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54-8M2001490 - 54-8M2001490 - CLAMP Worm Gear O [ More info ] Unavailable Replaced by 54-815504232 |
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#31 | 54-865373 | CLAMP, Hose (1 required per assembly) |
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#32 | 891717 | COVER, Heat Exchanger End (2 required per assembly) Use With 3.75 Inch Diameter Heat Exchanger |
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#33 | 27-891716 | GASKET, Heat Exchanger Cover (2 required per assembly) Use With 3.75 Inch Diameter Heat Exchanger |
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#34 | 25-8M0039163 | O-RING, (3/8 x 1/8) (2 required per assembly) |
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#35 | 10-98261 | SCREW, (.375-16 x .750) (2 required per assembly) |
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#36 | 8M2000004 | BRACKET, Flush Mount (1 required per assembly) |
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#N.S. | 19-807992 3 | COVER, Hose Clamp End (AR required per assembly) |
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19-807992 3 - Cover-.375 - Priced Individually [ More info ] |
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19-8M6500037 - 19-8M6500037 - COVER O [ More info ] Unavailable Replaced by 19-8M0074364 |
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198M0074364 - Cover-Clamp - Priced Individually [ More info ] |