Parts for Mercury Marine 50 HP (4 Cylinder) Crankshaft, Pistons, & Connecting Rods
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Reference numbers in this diagram can be found in a light blue row below — scroll down to order.
#1 | 459-9075 | CRANKSHAFT (1 required per assembly) |
459-9075 - Crankshaft [ More info ] Unavailable |
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#2 | 28-20094 | KEY, CRANKSHAFT (1 required per assembly) |
#3 | 534-3267A25 | MAIN BEARING ASSEMBLY (VALVE TYPE) (2 required per assembly) |
534-3267A25 - Reed Block Assembly [ More info ] Unavailable |
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#4 | 17-20032 | DOWEL PIN, MAIN BEARING (4 required per assembly) |
#5 | 17-65855 | DOWEL PIN, REED LOCATING (16 required per assembly) |
#6 | 10-45775 | SCREW, MAIN BEARING (9/16") (4 required per assembly) |
#7 | 11-45774 | NUT, MAIN BEARING SCREW (4 required per assembly) |
#8 | 34-88498A 1 | REED SET, MATCHED (2 required per assembly) |
#9 | 34-79014 | REED STOP (8 required per assembly) |
34-79014 - REED STOP [ More info ] Unavailable |
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#10 | 10-77280 | SCREW, REED STOP (9/16") (8 required per assembly) |
#11 | 11-20110 | NUT, REED STOP SCREW (8 required per assembly) |
#12 | 74-5172A 6 | PISTON AND PISTON PIN ASSEMBLY (4 required per assembly) |
#12 | 743-3366A 2 | PISTON AND PISTON PIN ASSEMBLY (.015 OVERSIZE) (AR required per assembly) |
743-3366A 2 - Piston - .015 [ More info ] Unavailable |
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780-9229A10 - Piston Assembly -.015 [ More info ] Unavailable |
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#12 | 743-7716A 2 | PISTON AND PISTON PIN ASSEMBLY (.030 OVERSIZE) (AR required per assembly) |
743-7716A 2 - Piston Assembly -.030 [ More info ] Unavailable |
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#13 | 40-47276 | LOCK RING, PISTON PIN (8 required per assembly) |
40-47276 - Lock Ring - Priced Individually [ More info ] Unavailable |
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#14 | 39-27841A12 | PISTON PIN (1 required per assembly) |
39-27841A12 - Piston Rings, Standard, 12 Rings [ More info ] |
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#14 | 39-28616A12 | PISTON RING (.015 OVERSIZE) (1 required per assembly) |
#14 | 39-89822A12 | PISTON RING (.030 OVERSIZE) (1 required per assembly) |
#15 | 632-7621A 3 | CONNECTING ROD AND CAP ASSEMBLY (4 required per assembly) |
632-7621A 3 - Connecting Rod, New Surplus, NLA [ More info ] |
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#16 | 10-45379 | SCREW, CAP TO ROD - WITH NUT (8 required per assembly) |
10-45379 - Screw only - Nut no longer included [ More info ] |
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#17 | 11-20061 | NUT, ROD SCREW - WITH NUT (8 required per assembly) |
#16 | 10-91012 | SCREW, CAP TO ROD - WITHOUT NUT (8 required per assembly) |
10-91012 - Screw - Special - Priced Individually [ More info ] Unavailable |
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#18 | 29-20063 | NEEDLE BEARING, PISTON PIN (108 required per assembly) |
#19 | 12-47275 | WASHER, NEEDLE LOCATING (8 required per assembly) |
#20 | 29-20046 | NEEDLE BEARING, CRANKPIN (100 required per assembly) |
#21 | 547-7060A 2 | CENTER MAIN BEARING ASSEMBLY (1 required per assembly) |
#23 | 29-71422 | NEEDLE BEARING (56 required per assembly) |
29-71422 1 - Needle Bearing - Priced Individually [ More info ] |
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#24 | 26113 | RACE, OUTER (1 required per assembly) |
26113 - Outer Race [ More info ] Unavailable |
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#25 | 53-26933 | SNAP RING, OUTER RACE (1 required per assembly) |
#26 | 10-76630 | SCREW, CENTER MAIN BEARING (1") (2 required per assembly) |