Parts for 80, 800 (4 Cyl.) 2-Stroke Carbureted Mercury Outboard Motor Cylinder Block & Crankcase Assembly
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Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| #- | 73645A87 | GASKET SET (1 required per assembly) — Replaces: 73645A32 |
| #- | 97471T87 | POWERHEAD MARINE (1 required per assembly) — Replaces: 97471A32, 97471A87 |
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97471T87 - Powerhead MARINE,NLA [ More info ] Unavailable |
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| #1 | 8338A3 | CYLINDER BLOCK [USA-6030904/Australia-8074613/Belgium-9345616/Canada-7189008] & Up (1 required per assembly) — Replaces: 7749A3 |
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871-8338A 3 - Cylinder Block,NLA [ More info ] Unavailable |
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| #2 | 53650 | GASKET CRANKCASE TO CYLINDER BLOCK (2 required per assembly) |
| #3 | 56029T | COVER STARTER MOTOR (UPPER) (2 required per assembly) — Replaces: 56029 |
| #4 | 31984 | SCREW (.312-18 X 1.375) COVER TO CRANKCASE (1 required per assembly) |
| #4 | 35385 | SCREW (.312-18 X 1-3/4) COVER TO CRANKCASE (1 required per assembly) |
| #5 | 8M0204647 | LOCKWASHER @5 COVER SCREW (4 required per assembly) — Replaces: 26993 |
| #6 | 76867 | COVER STARTER MOTOR (LOWER) (1 required per assembly) |
| #7 | 73279 | SCREW (.312-18 X 1.880) COVER TO CRANKCASE (1-7/8") (1 required per assembly) — Replaces: 39767 |
| #7 | 73658 | SCREW COVER TO CRANKCASE (5-1/2") (1 required per assembly) |
| #8 | 64281 | STUD (.375-16/.375-24 X 1.880) (2 required per assembly) |
| #9 | 43044 | PIN DOWEL - WITHOUT HOLE (.375 X .625) CRANKCASE TO CYLINDER BLOCK (2 required per assembly) — Replaces: 20033 |
| #10 | 63779 | PIN DOWEL (.250 X .625) CYLINDER BLOCK TO MAIN BEARING (2 required per assembly) |
| #11 | 66517 | RESTRICTOR CRANKCASE BLEED (3 required per assembly) |
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66517 - Bleed Restrictor - Priced Individually [ More info ] |
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| #12 | 64282 | STUD (4 IN.) CYLINDER BLOCK TO EXHAUST PLATE (4") (6 required per assembly) |
| #13 | 57841 | SCREW (.312-18 X 2.750) CRANKCASE TO CYLINDER BLOCK (2 required per assembly) |
| #13 | 74824 | SCREW (.312-18 X 1.250) CRANKCASE TO CYLINDER BLOCK (1-1/4") (2 required per assembly) — Replaces: 53016 |
| #14 | 73657 | SCREW (.312-18 X 1.50) CRANKCASE TO CYLINDER BLOCK (13 required per assembly) |
| #15 | 20359 | SCREW (.375-16 X 1.00) CENTER MAIN BEARING LOCKING (1 required per assembly) |
| #16 | 20091 | TAB WASHER BEARING LOCKING SCREW (1 required per assembly) |
| #17 | 42866 | CHECK VALVE BLEED HOSE - TOP (1 required per assembly) — Replaces: 77560 |
| #19 | 9938779 | HOSE CYLINDER BLEED (15-1/2") (1 required per assembly) — Replaces: 5493579 |
| #20 | 428671 | CHECK VALVE BLEED HOSE - BOTTOM (1 required per assembly) — Replaces: 77561, 42867 |
| #21 | 996641 | ELBOW (1 required per assembly) — Replaces: 25885, 99664 |
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22-99664 1 - Elbow [ More info ] Unavailable |
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| #22 | 830756109 | HOSE (57.00 INCHES BULK) BALANCE (6-1/4") (1 required per assembly) — Replaces: 34395A1, 99127109 |
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32-830756109 - Hose, 57 Inch [ More info ] Unavailable |
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32-8M0047428 - Hose -57 Inch [ More info ] Unavailable |
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| #23 | 130342 | TEE BALANCE HOSE TO CYLINDER BLOCK - LOWER (1 required per assembly) — Replaces: 65348 |
| #24 | 9938779 | HOSE BALANCE (5") (1 required per assembly) — Replaces: 5493579 |
| #25 | 56759 | FITTING BARBED AIR INLET COVER (1 required per assembly) — Replaces: 65857 |




