Parts for Mercury Marine 18 HP Crankshaft, Pistons & Flywheel
Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
| #1 | 258-8274A 6 | FLYWHEEL ASSEMBLY (1 required per assembly) |
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258-8274A 6 - 258-8274A 6 - FLYWHEEL ASSEMBLY O [ More info ] Unavailable Replaced by 258-818354A 2 |
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258-818354A 2 - 258-818354A 2 - FLYWHEEL O [ More info ] Unavailable Replaced by 258-859232T 6 |
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258-859232T 6 - 258-859232T 6 - FLYWHEEL O [ More info ] Unavailable Replaced by 258-859232T15 |
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258-859232T15 - Flywheel Assembly [ More info ]
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| #2 | 10-97359A 1 | SCREW, FLYWHEEL TO CRANKSHAFT (1 required per assembly) |
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10-97359A 1 - Screw, NLA [ More info ]
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| #3 | 12-86496 | WASHER, FLYWHEEL SCREW (1 required per assembly) |
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12-86496 - Washer [ More info ]
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| #4 | 43-87575 | RING GEAR, FLYWHEEL (1 required per assembly) ELECTRIC UNITED STATES 6043400 AND BELOW AUSTRALIA 8073792 AND BELOW BELGIUM 9340115 AND BELOW CANADA 7185897 AND BELOW |
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43-87575 - 43-87575 - RING GEAR O [ More info ] Unavailable Replaced by 43-99301 |
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43-99301 - Ring Gear [ More info ]
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| #4 | 43-99301 | RING GEAR, FLYWHEEL (1 required per assembly) ELECTRIC UNITED STATES 6043401 AND UP BELGIUM 9340116 AND UP CANADA 7185898 AND UP |
| #5 | 10-40039106 | SCREW, RING GEAR TO FLYWHEEL (4 required per assembly) ELECTRIC |
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10-40039106 - 10-40039106 - SCREW (M5 x 13) O [ More info ] Unavailable Replaced by 10-881903 13 |
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10-881903 13 - Screw [ More info ]
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| #6 | 464-8586A 2 | CRANKSHAFT ASSEMBLY (1 required per assembly) |
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464-8586A 2 - 464-8586A 2 - CRANKSHAFT ASSEMB O [ More info ] Unavailable Replaced by 464-8978A 2 |
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464-8978A 2 - 464-8978A 2 - CRANKSHAFT ASSEMB O [ More info ] Unavailable Replaced by 464-8978T 2 |
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464-8978T 2 - CrankShaft [ More info ]
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| #7 | 85981 | SEAL, CRANKSHAFT (1 required per assembly) |
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85981 - Crankshaft Seal, NLA [ 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, CRANKSHAFT - LOWER (1 required per assembly) |
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31-85113 - 31-85113 - BEARING Roller O [ More info ] Unavailable Replaced by 31-85113T |
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31-85113T - Bearing [ More info ]
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| #10 | 31-85114 | ROLLER BEARING, CRANKSHAFT - UPPER (1 required per assembly) |
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31-85114 - 31-85114 - BEARING Roller - O [ More info ] Unavailable Replaced by 31-85114T |
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31-85114T - Bearing [ More info ]
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| #11 | 26-85974 | OIL SEAL, CRANKSHAFT - UPPER (1 required per assembly) |
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26-85974 - Oil Seal [ More info ]
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26-85974 1 - Seal [ More info ]
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| #12 | 86992A 2 | BEARING ASSEMBLY, CENTER MAIN (1 required per assembly) |
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86992A 2 - 86992A 2 - BEARING ASSEMBLY O [ More info ] Unavailable Replaced by -86992A 3 |
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86992A 3 - 86992A 3 - BEARING ASSEMBLY O [ More info ] Unavailable Replaced by -86992A 5 |
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86992A 5 - BEARING ASSEMBLY O NLA [ More info ] Unavailable |
| #13 | 28-20094 | KEY, FLYWHEEL DRIVE (1 required per assembly) |
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28-20094 - Key - Priced Individually [ More info ]
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| #14 | 767-8511A 3 | PISTON AND PIN ASSEMBLY (2 required per assembly) |
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767-8511A 3 - 767-8511A 3 - PISTON ASSEMBLY O [ More info ] Unavailable Replaced by 767-9104A 3 |
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767-9104A 3 - Piston & Pin Assembly - 872- 9533T2 [ More info ]
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| #15 | 40-47276 | LOCK RING, PISTON PIN (4 required per assembly) |
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40-47276 - Lock Ring - Priced Individually [ More info ]
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40-828119 - Lock Ring [ More info ]
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| #16 | 39-96525A12 | PISTON RING ASSEMBLY (1 required per assembly) |
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39-96525A12 - 39-96525A12 - RING SET Piston O [ More info ] Unavailable Replaced by 39-12810A12 |
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39-12810A12 - Piston Rings 12 Pcs. [ More info ]
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39-8M0083677 - ORD 39-8M0096518 O NLA [ More info ] Unavailable |
| #17 | 630-8329A 2 | CONNECTING ROD ASSEMBLY (2 required per assembly) UNITED STATES 6239752 AND BELOW BELGIUM 9378115 AND BELOW CANADA 7200762 AND BELOW |
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630-8329A 2 - Connecting Rod, NLA [ More info ]
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| #18 | 29-20063 | NEEDLE BEARING, PISTON END (54 required per assembly) UNITED STATES 6239752 AND BELOW BELGIUM 9378115 AND BELOW CANADA 7200762 AND BELOW |
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29-20063 - Needle - Priced Individually [ More info ]
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| #19 | 12-85175 | WASHER, LOCATING - NEEDLE BEARING (4 required per assembly) UNITED STATES 6239752 AND BELOW BELGIUM 9378115 AND BELOW CANADA 7200762 AND BELOW |
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12-85175 - Washer, NLA [ More info ]
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| #20 | 31-91866A 1 | ROLLER BEARING ASSEMBLY (2 required per assembly) UNITED STATES 6239752 AND BELOW BELGIUM 9378115 AND BELOW CANADA 7200762 AND BELOW |
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31-91866A 1 - 31-91866A 1 - BEARING ASSEMBLY O [ More info ] Unavailable Replaced by 31-41620A 1 |
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31-41620A 1 - 31-41620A 1 - BEARING ASSEMBLY O [ More info ] Unavailable Replaced by 31-879877A 1 |
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31-879877A 1 - Bearing Cage Assembly [ More info ]
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| #21 | 10-86224 | SCREW, CONNECTING ROD (25MM) (4 required per assembly) UNITED STATES 6239752 AND BELOW BELGIUM 9378115 AND BELOW CANADA 7200762 AND BELOW |
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10-86224 - 10-86224 - SCREW O [ More info ] Unavailable Replaced by 10-40082 25 |
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10-40082 25 - Screw, NLA [ More info ]
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| #17 | 630-8329A 3 | CONNECTING ROD ASSEMBLY (2 required per assembly) UNITED STATES 6239753 AND UP BELGIUM 9378116 AND UP CANADA 7200763 AND UP |
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630-8329A 3 - 630-8329A 3 - CONNECTING ROD AS O [ More info ] Unavailable Replaced by 630-8835A 2 |
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630-8835A 2 - 630-8835A 2 - CONNECTING ROD AS O [ More info ] Unavailable Replaced by 630-8835A 4 |
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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) UNITED STATES 6239753 AND UP BELGIUM 9378116 AND UP CANADA 7200763 AND UP |
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29-98295 - Needle Bearing - Priced Individually [ More info ]
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| #19 | 12-98296 | WASHER, LOCATING - NEEDLE BEARING (4 required per assembly) UNITED STATES 6239753 AND UP BELGIUM 9378116 AND UP CANADA 7200763 AND UP |
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12-98296 - 12-98296 - WASHER O [ More info ] Unavailable Replaced by -42025 |
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42025 - Thrust Bearing [ More info ]
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12-8M0012294 - Thrust Washer [ More info ]
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| #21 | 10-40082 25 | SCREW, CONNECTING ROD (25MM) (4 required per assembly) UNITED STATES 6239753 AND UP BELGIUM 9378116 AND UP CANADA 7200763 AND UP |
| #22 | 27-85168A80 | GASKET SET |
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27-85168A80 - GASKET SET O NLA [ More info ] Unavailable |
