Parts for 25 (2 Cyl.) 2-Stroke Carbureted Mercury Outboard Motor Crankshaft Pistons & Flywheel
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Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| #- | 41499A88 | GASKET SET (1 required per assembly) |
| #- | 804946T02 | POWERHEAD ASSEMBLY (1 required per assembly) |
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804946T02 - Powerhead 25 2ST, NLA [ More info ] Unavailable |
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| #1 | 97359A1 | SCREW (1 required per assembly) |
| #1 | 40001248 | SCREW (1 required per assembly) |
| #2 | 86496 | WASHER (1 required per assembly) |
| #3 | 859232T14 | FLYWHEEL (Non-Commercial) ( required per assembly) — Replaces: 859232T10 |
| #3 | 859232T13 | FLYWHEEL ASSY (Commercial) (1 required per assembly) — Replaces: 818354T10 |
| #4 | NSS | NOT SOLD SEPARATE DECAL-WARNING (1 required per assembly) |
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NSS - NOT SOLD SEPARATE [ More info ] Unavailable |
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| #5 | NSS | NOT SOLD SEPARATE DECAL-WARNING (1 required per assembly) |
| #6 | 99301 | GEAR-RING (Electric) (1 required per assembly) |
| #7 | 88190313 | SCREW (Electric) (4 required per assembly) |
| #8 | 859741 | SEAL (1 required per assembly) |
| #9 | 85114T | BEARING (1 required per assembly) |
| #10 | 20094 | KEY @5 (1 required per assembly) |
| #11 | 8978T2 | CRANKSHAFT (1 required per assembly) |
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464-8978T 2 - CrankShaft [ More info ] Unavailable |
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| #12 | 822445A1 | WEAR SLEEVE (1 required per assembly) |
| #13 | NSS | NOT SOLD SEPARATE O-RING (1 required per assembly) |
| #14 | 85107 | SEAL OIL LOWER (1 required per assembly) |
| #15 | 85113T | BEARING (1 required per assembly) |
| #16 | 8835A4 | CONNECTING ROD (2 required per assembly) |
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630-8835A 4 - Connecting Rod [ More info ] Unavailable |
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| #17 | 91012 | SCREW (.250-28 SPECIAL) (4 required per assembly) |
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10-91012 - Screw - Special - Priced Individually [ More info ] |
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| #18 | 879877A1 | BEARING ASSEMBLY ROLLER (2 required per assembly) |
| #19 | NSS | NOT SOLD SEPARATE ROLLER (24 required per assembly) |
| #20 | 98295 | BEARING NEEDLE (54 required per assembly) |
| #21 | 8M0012294 | WASHER-THRUST (4 required per assembly) — Replaces: 42025 |
| #22 | 879878T5 | PISTON ASSY (Standard) (2 required per assembly) |
| #22 | 9104T19 | PISTON ASSY (Seapro/Marathon-Chrome Bore) (2 required per assembly) |
| #22 | 879878A6 | PISTON-.030 O/S (.030 Oversize) (2 required per assembly) |
| #23 | 828119 | LOCK RING PISTON PIN (4 required per assembly) |
| #24 | 827491A12 | RING SET PISTON (Standard) (1 required per assembly) |
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39-827491A12 - Piston Rings - 12 Rings in this set [ More info ] |
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| #24 | 18652A2 | RING SET PISTON (.030 Oversize) (1 required per assembly) |
| #25 | NSS | NOT SOLD SEPARATE PISTON RING (2 required per assembly) |
| #26 | 8M0113968 | BEARING-CENTER/MA (1 required per assembly) — Replaces: 86992A5 |
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8M0113968 - Bearing, Center/Main [ More info ] Unavailable |
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| #27 | NSS | NOT SOLD SEPARATE BEARING (1 required per assembly) |
| #28 | NSS | NOT SOLD SEPARATE THRUST WASHER (1 required per assembly) |
| #29 | NSS | NOT SOLD SEPARATE THRUST WASHER (1 required per assembly) |
| #30 | NSS | NOT SOLD SEPARATE NEEDLE ROLLER (1 required per assembly) |
| #31 | NSS | NOT SOLD SEPARATE THRUST WASHER (1 required per assembly) |
| #32 | NSS | NOT SOLD SEPARATE NEEDLE ROLLER (1 required per assembly) |
| #33 | NSS | NOT SOLD SEPARATE THRUST WASHER (1 required per assembly) |





