Parts for 90, 900 (6 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.
| #- | 85653A87 | GASKET SET (1 required per assembly) — Replaces: 85653A32 |
| #- | 97472A32 | POWERHEAD MARINE [USA-6026609/Australia-8074513/Canada-7185073] & Up (1 required per assembly) — Replaces: 78911A80 |
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97472A32 - Powerhead MARINE,NLA [ More info ] Unavailable |
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| #1 | 8311A4 | CYLINDER BLOCK [USA-6026609/Australia-8074513/Canada-7185073] & Up (1 required per assembly) — Replaces: 7697A3 |
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852-8311A 4 - Cylinder Block,NLA [ More info ] Unavailable |
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| #2 | 53862 | GASKET CRANKCASE TO CYLINDER BLOCK (2 required per assembly) |
| #3 | 66517 | RESTRICTOR CRANKCASE BLEED (5 required per assembly) |
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66517 - Bleed Restrictor - Priced Individually [ More info ] |
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| #4 | 64936 | STUD CARBURETOR (1-3/16") (6 required per assembly) — Replaces: 64280, 68164 |
| #5 | 64281 | STUD (.375-16/.375-24 X 1.880) CRANKCASE TO EXTENSION PLATE (2 required per assembly) |
| #6 | 43044 | PIN DOWEL - WITHOUT HOLE (.375 X .625) CRANKCASE TO CYLINDER BLOCK (2 required per assembly) — Replaces: 20033 |
| #7 | 63779 | PIN DOWEL (.250 X .625) CYLINDER BLOCK TO MAIN BEARING (3 required per assembly) |
| #8 | 64282 | STUD (4 IN.) CYLINDER BLOCK TO PLATE (4") (6 required per assembly) |
| #9 | 86473 | COVER STARTER MOTOR - TOP (1 required per assembly) |
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86473 - Bracket, NLA [ More info ] Unavailable |
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| #10 | 73279 | SCREW (.312-18 X 1.880) TOP COVER (1-7/8") (2 required per assembly) — Replaces: 69268 |
| #11 | 8M0204647 | LOCKWASHER @5 TOP COVER SCREWS (2 required per assembly) — Replaces: 26993 |
| #13 | 76867 | COVER STARTER MOTOR - BOTTOM (1 required per assembly) |
| #14 | 73279 | SCREW (.312-18 X 1.880) BOTTOM COVER (1-7/8") (2 required per assembly) — Replaces: 69268 |
| #15 | 8M0204647 | LOCKWASHER @5 BOTTOM COVER SCREW (2 required per assembly) — Replaces: 26993 |
| #17 | 57841 | SCREW (.312-18 X 2.750) CRANKCASE TO CYLINDER BLOCK (3 required per assembly) |
| #17 | 32293 | SCREW (.312-24 X 1.75) CRANKCASE TO CYLINDER BLOCK (3 required per assembly) |
| #17 | 73657 | SCREW (.312-18 X 1.50) CRANKCASE TO CYLINDER BLOCK (20 required per assembly) |
| #17 | 74824 | SCREW (.312-18 X 1.250) CRANKCASE TO CYLINDER BLOCK (1-1/4") (2 required per assembly) — Replaces: 53016 |
| #18 | 22753 | WASHER CRANKCASE SCREWS (25 required per assembly) |
| #19 | 29250 | NUT (.312-24) CRANKCASE SCREWS (LOWER) (2 required per assembly) |
| #20 | 20359 | SCREW (.375-16 X 1.00) CENTER MAIN BEARING LOCKING (2 required per assembly) |
| #21 | 20091 | TAB WASHER BEARING LOCKING SCREW (2 required per assembly) |
| #25 | 42866 | CHECK VALVE BLEED HOSE - UPPER (1 required per assembly) — Replaces: 77560 |
| #26 | 9938779 | HOSE BLEED (22") (1 required per assembly) — Replaces: 5493579 |
| #27 | 428671 | CHECK VALVE BLEED HOSE - LOWER (1 required per assembly) — Replaces: 77561, 42867 |
| #28 | 996641 | ELBOW BALANCE HOSE (2 required per assembly) — Replaces: 25885, 99664 |
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22-99664 1 - Elbow [ More info ] Unavailable |
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| #29 | 830756109 | HOSE (57.00 INCHES BULK) BALANCE - MAIN BEARING (6-1/4") (2 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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| #30 | 8M0027799 | TEE BALANCE HOSE [USA-6026608/Australia-8074512/Canada-7185072] & Below (1 required per assembly) — Replaces: 85578, 8M0027798 |
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22-8M0027799 - TEE [ More info ] Unavailable |
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22-858553 1 - Fitting -tee [ More info ] Unavailable |
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| #30 | 97231 | TEE BLEED BASE [USA-6026609/Australia-8074513/Canada-7185073] & Up (1 required per assembly) |
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22-97231 - Fitting, NLA [ More info ] Unavailable |




