Parts for Mercury Marine 20 HP (2 Cylinder) Crankshaft, Pistons & Flywheel
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| # | 90885A88 | POWERHEAD ASSEMBLY, COMPLETE (1 required per assembly) |
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90885A88 - Powerhead [ More info ] Unavailable |
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90885A89 - Powerhead MARINE [ More info ] Unavailable |
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90885T89 - Powerhead [ More info ] Unavailable |
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879732T89 - PH 20/25,NLA [ More info ] Unavailable |
| # | 822261A92 | POWERHEAD ASSEMBLY (1 required per assembly) SN# 0D116956 THRU 0D117955 |
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822261A92 - Powerhead MERCAS [ More info ] Unavailable |
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| # | 27-41499A87 | GASKET SET (1 required per assembly) |
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27-41499A87 - Engine Gasket Set [ More info ] Unavailable |
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27-41499A88 - Engine Gasket Set [ More info ]
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| #1A | 258-8274A 6 | FLYWHEEL ASSEMBLY (DESIGN I) (1 required per assembly) |
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258-8274A 6 - Flywheel [ More info ] Unavailable |
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258-818354A 2 - Flywheel [ More info ] Unavailable |
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258-859232T 6 - Flywheel [ More info ] Unavailable |
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258-859232T15 - Flywheel Assembly [ More info ]
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| #1 | 258-818354A 2 | FLYWHEEL (DESIGN II) (1 required per assembly) |
| #2 | 10-97359A 1 | SCREW ASSEMBLY, FLYWHEEL TO CRANKSHAFT (1 required per assembly) |
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10-97359A 1 - Screw, NLA [ More info ]
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| #3 | 21-86496 | WASHER, FLYWHEEL SCREW (1 required per assembly) |
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12-86496 - Washer, Flywheel Screw [ More info ]
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| #4 | 43-99301 | RING GEAR, FLYWHEEL -ELECTRIC (1 required per assembly) |
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43-99301 - Ring Gear [ More info ]
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| #5 | 10-40039106 | SCREW, (M5 x 13), RING GEAR TO FLYWHEEL -ELECTRIC (4 required per assembly) |
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10-40039106 - Screw [ More info ] Unavailable |
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10-881903 13 - Screw [ More info ]
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| #6 | 464-8978A 2 | CRANKSHAFT ASSEMBLY (1 required per assembly) |
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464-8978A 2 - Crankshaft [ More info ] Unavailable |
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464-8978T 2 - CrankShaft [ More info ]
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| #7 | 822445A 1 | WEAR SLEEVE (1 required per assembly) |
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822445A 1 - Wear Sleeve Kit [ More info ]
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| #8 | 26-85107 | OIL SEAL, CRANKSHAFT - LOWER (1 required per assembly) |
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18-0537 - Seal, 26-85107 [ More info ]
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| #9 | 31-85113 | ROLLER BEARING, LOWER (1 required per assembly) |
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31-85113 - Roller Bearing - Crankshaft - Lower [ More info ] Unavailable |
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31-85113T - Bearing - Roller - Lower [ More info ]
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| #10 | 31-85114 | ROLLER BEARING, UPPER (1 required per assembly) |
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31-85114 - Roller Bearing - Crankshaft - Upper [ More info ] Unavailable |
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31-85114T - Bearing - Roller - Upper [ More info ]
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| #11 | 26-85974 1 | OIL SEAL, CRANKSHAFT-UPPER (1 required per assembly) |
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26-85974 1 - Seal [ More info ] Unavailable |
| #12 | 86992A 3 | BEARING ASSEMBLY, CENTER MAIN (1 required per assembly) |
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86992A 3 - CENTER MAIN BEAR [ More info ] Unavailable |
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86992A 5 - Bearing - Center/Main [ More info ] Unavailable |
| #13 | 28-20094 | KEY, Woodruff, FLYWHEEL DRIVE (1 required per assembly) |
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28-20094 - Key - Priced Individually [ More info ]
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| #14 | 767-9104A17 | PISTON AND PIN ASSEMBLY (2 required per assembly) (See Note) |
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767-9104A17 - Piston [ More info ] Unavailable |
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767-9104A18 - Piston [ More info ] Unavailable |
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767-9104A19 - Piston Assembly [ More info ] Unavailable |
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767-9104T19 - Piston Assembly [ More info ] Unavailable |
| #15 | 40-47276 | LOCK RING, PISTON PIN (4 required per assembly) (See Note) |
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40-47276 - Lock Ring - Priced Individually [ More info ] Unavailable |
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40-828119 - Lock Ring [ More info ]
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| #16 | 39-17286A12 | PISTON RING ASSEMBLY (1 required per assembly) (See Note) |
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39-17286A12 - Ring Set -12 Pcs [ More info ] Unavailable |
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39-18652A12 - Ring Set-12 PCS [ More info ] Unavailable |
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39-827491A12 - Piston Rings - 12 Rings in this set [ More info ]
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| #17 | 630-8835A 2 | CONNECTING ROD ASSEMBLY (2 required per assembly) |
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630-8835A 2 - Connecting Rod Assembly [ More info ] Unavailable |
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630-8835A 4 - Connecting Rod [ More info ]
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| #18 | 29-98295 | NEEDLE BEARING, PISTON END (54 required per assembly) |
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29-98295 - Needle Bearing [ More info ]
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| #19 | 42025 | BEARING, LOCATING - NEEDLE BEARING (4 required per assembly) |
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42025 - Thrust Bearing [ More info ] Unavailable |
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12-8M0012294 - Thrust Washer [ More info ]
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| #20 | 31-41620A 1 | ROLLER BEARING ASSEMBLY (2 required per assembly) |
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31-41620A 1 - Roller Bearing [ More info ] Unavailable |
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31-879877A 1 - Bearing - Roller [ More info ]
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| #21 | 10-40082 25 | SCREW, (M6 x 25) (METRIC THREAD) (4 required per assembly) |
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10-40082 25 - Screw, NLA [ More info ]
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| #21 | 10-F1012 | SCREW (STANDARD THREAD) (4 required per assembly) |
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F1012 - Screw, NLA [ More info ]
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