| OMC Pistons 50 HP - 75 HP (3 cylinders) | |||||||
|
Wiseco forged pistons are superior in strength due to the inherent nature of both the aluminum alloy and the forging extrusion manufacturing process. |
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| A PRO Piston is made of the highest quality alloys. Pro Pistons are made from high silicon aluminum alloy and meets or exceeds oem specifications. The Pro pistons are our most economical piston line. | |||||||
| The Pro-V Piston is made of the same alloys as the pro piston adding a gray moly coating. Moly reduces friction during the critical break-in period and helps dissipate heat as well. | |||||||
| *All
pistons are sold with wrist pins, rings, and clips (unless
noted). **All piston kits include one piston only. |
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| Model | Cyl. | Piston Size | Bore Size | Wiseco | Pro Parts | Pro-V |
 |
| 50HP 1995-2000;
60HP 1989-99; 65HP 1987-91; 70HP 1986-99
|
3 | STD | 3.187 | 3172PS | - | - | |
| - | - | 7200V | |||||
| - | 7200 | - | |||||
| 020 | 3.207 | 3172P2 | - | - | |||
| - | - | 7220V | |||||
| - | 7220 | - | |||||
| 030 | 3.217 | 3172P3 | - | - | |||
| - | - | 7230V | |||||
| - | 7230 | - | |||||
| 040 | 3.227 | 3172P4 | - | - | |||
| 60HP 1986-88;
65HP 84-86 Commercial (*Note: Will fit most 65HP Commercial 72-75 with a WP15-1 wrist pin bearing ) 70 HP and 75 HP 1976-85 (*Note: Will fit 72-75 with a WP15-1 wrist pin bearing)
|
3 | STD | 3.000 | 3115PS | - | - | |
| - | - | 1500V | |||||
| - | 1500 | - | |||||
| 020 | 3.020 | 3115P2 | - | - | |||
| - | - | 1520V | |||||
| - | 1520 | - | |||||
| 30 | 3.030 | 3115P3 | - | - | |||
| - | - | 1530V | |||||
| - | 1530 | - | |||||
| 040 | 3.040 | 3115P4 | - | - | |||