Parts for MerCruiser 8.1L Inboard (H.O.) Cylinder Block, Crankshaft, Oil Pump & Front Cover
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Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
# | 863817A02 | LONG BLOCK (H.O.) (1 required per assembly) SN# 0M315242 THRU 0M316893 |
863817A02 - LONGBLOCK [ More info ] Unavailable |
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865275A01 - LONGBLOCK [ More info ] Unavailable |
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865521A01 - LONGBLOCK [ More info ] Unavailable |
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865754A01 - Lb 496 Ho 01-UP [ More info ] Unavailable |
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# | 865273A01 | LONG BLOCK (Base) (1 required per assembly) (GM Code 4XY) SN# 0M316948 & Up |
865273A01 - LONGBLOCK [ More info ] Unavailable |
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865519A01 - LONGBLOCK [ More info ] Unavailable |
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865752A01 - 8M0086000 [ More info ] Unavailable |
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# | 862762A 1 | LONG BLOCK (Base) (1 required per assembly) SN# 0M315052 & Below |
862762A 1 - LONGBLOCK-8.1L [ More info ] Unavailable |
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863815A 1 - LONGBLOCK-8.1L [ More info ] Unavailable |
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863815A02 - LONGBLOCK [ More info ] Unavailable |
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# | 865275A01 | LONG BLOCK (H.O.) (1 required per assembly) (GM Code 4XF) SN# 0M316894 & Up |
# | 862764A 1 | LONG BLOCK (H.O.) (1 required per assembly) SN# 0M315241 & Below |
862764A 1 - LONGBLOCK-8.1L HO [ More info ] Unavailable |
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863817A 1 - LONGBLOCK-8.1L HO [ More info ] Unavailable |
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# | 863815A02 | LONG BLOCK (Base) (1 required per assembly) SN# 0M315053 THRU 0M316947 |
#1 | NSS | NOT SOLD SEPARATE, BLOCK-Engine (1 required per assembly) (Order Longblock Assembly) |
NSS - NOT SOLD SEPARATE [ More info ] Unavailable |
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#3 | 429-881654 | CRANKSHAFT (Base) (1 required per assembly) |
429-881654 - Crankshaft [ More info ] Unavailable |
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429-881654001 - CrankShaft [ More info ] Unavailable |
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4008M0084521 - CrankShaft [ More info ] Unavailable |
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#3 | 429-883240 | CRANKSHAFT (H.O.) (1 required per assembly) (GM Block Code T10153XF and Below) |
#4 | 23-884702 | BEARING KIT, Crankshaft (4 required per assembly) |
#5 | 23-881607 | BEARING KIT, Crankshaft Main Thrust (1 required per assembly) |
23-881607 - Bearing Kit - Crankshaft Main Thrust [ More info ] Unavailable |
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23-881607001 - Bearing Kit - Crankshaft Main Thrust [ More info ] Unavailable |
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#6 | 17-881605 | PIN, Balancer Locating (1 required per assembly) |
#7 | 43-881655 | SPROCKET, Crankshaft (1 required per assembly) |
#8 | 881656 | COVER, Front (1 required per assembly) SN# 0M316893 & Below |
881656 - COVER [ More info ] Unavailable |
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#8 | 892616 | COVER, Front (Base) (1 required per assembly) (GM Code 4XY) SN# 0M316948 & Up |
892616 - Cover [ More info ] Unavailable |
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#9 | 27-881604 | GASKET, Front Cover (1 required per assembly) |
#10 | 26-881613 | SEAL, Crankshaft front Oil (1 required per assembly) |
26-881613 - SEAL [ More info ] Unavailable |
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#11 | 10-881577 | SCREW, (M6 x 30) (6 required per assembly) |
10-881577 - BOLT [ More info ] Unavailable |
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10-881577001 - SCREW [ More info ] Unavailable |
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#12 | 883513 | SENSOR, Camshaft Position (1 required per assembly) (GM Block Code 1XY, 1XF) |
883513 - Camshaft Sensor [ More info ] Unavailable |
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881666 - Sensor,NLA [ More info ] Unavailable |
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#12 | 881666 | SENSOR, Camshaft Position (1 required per assembly) (GM Block Code 2XY, 2XF, 3XY, 3XF) |
#12 | 892615 | SENSOR, Camshaft Position (Base) (1 required per assembly) (GM Code 4XY) SN# 0M316948 & Up |
892615 - Camshaft Sensor [ More info ] Unavailable |
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892615001 - Camshaft Sensor [ More info ] Unavailable |
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#14 | 10-881594 | SCREW, (M6 x 20) (1 required per assembly) |
10-881594 - BOLT [ More info ] Unavailable |
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#15 | 881657 | BALANCER, Crankshaft (1 required per assembly) (Base) |
881657 - Balancer [ More info ] Unavailable |
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891769 - Balancer [ More info ] Unavailable |
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#15 | 881658 | BALANCER, Crankshaft (1 required per assembly) (H.O.) |
881658 - Ord 891769, NLA [ More info ] Unavailable |
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#16 | 10-881587 | SCREW, (M16 x 1.5) (1 required per assembly) |
#17 | 12-881614 | WASHER (1 required per assembly) |
#18 | 26-881608 | SEAL, Crankshaft Rear Oil (1 required per assembly) |
26-881608 - SEAL [ More info ] Unavailable |
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#19 | 17-881609 | PIN, Flywheel Locating (2 required per assembly) |
#20 | 222-881641 | FLYWHEEL (1 required per assembly) (Base & HO) |
222-881641 - Flywheel [ More info ] Unavailable |
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222-881641001 - Flywheel [ More info ] Unavailable |
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#21 | 10-881578 | BOLT (6 required per assembly) |
#22 | 17-35312 | PIN, Dowel (1/4 n. Diameter), Oil Pump Locating (1 required per assembly) |
17-35312 - Pin, Dowel (1/4 Inch Dia.) [ More info ] Unavailable |
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#23 | 16-881615 | STUD, Crankshaft Bearing Cap (10 required per assembly) |
#24 | 10-881580 | SCREW, (M12 x 89) (10 required per assembly) |
#25 | 883236 | DEFLECTOR, Oil (1 required per assembly) |
883236 - Ord 883236001, NLA [ More info ] Unavailable |
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#26 | 11-881579 | NUT (9 required per assembly) |
11-881579 - Nut [ More info ] Unavailable |
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#27 | 881652 | PUMP, With Screen, Oil (1 required per assembly) |
881652 - 8M0069808 [ More info ] Unavailable |
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#28 | 17-881611 | PIN, Oil Pump (1 required per assembly) |
#29 | 24-881610 | SPRING, Oil Pump (1 required per assembly) |
#30 | 22-881643 | VALVE, Pressure Relief (1 required per assembly) |
22-881643 - 8M0069808 [ More info ] Unavailable |
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#31 | 14761 | SHAFT AND RETAINER, Oil Pump Drive (1 required per assembly) |
14761 - Shaft [ More info ] Unavailable |
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#32 | 23-36183 | RETAINER, Oil Pump Drive (1 required per assembly) |
#33 | 10-881585 | SCREW, (M10 x 60) (1 required per assembly) |
#34 | 862349 | PULLEY, Crankshaft (1 required per assembly) |
862349 - Crankshaft Pulley [ More info ] Unavailable |
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#35 | 10-40090 25 | SCREW, (M10 x 25) Stainless Steel (3 required per assembly) |