| 120 HP - 140 HP OMC PISTONS | |||||||||||
| *** SCROLL DOWN TO VIEW ALL PRODUCTS! *** | |||||||||||
| Pistons | Rings | Gaskets&Seals | Bearings | Cooling System | |||||||
| Carb Kit | Electric System | Lower Gear Case | Crank Shafts | ||||||||
| 5HP-48HP | 50HP-60HP | 50HP-75HP | 65HP-115HP | 120HP-140HP | |||||||
| 150HP-200HP | 200HP-250HP | 235HP-275HP | 300HP | ||||||||
| OMC PISTON 120 HP - 140 HP | |||||||
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 grey 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 | Click here to view part, price or  |
| 120HP 1985-87 90 degree Looper (small bore) |
4 | STD Port | 3.500 | 3118PS (wiseco) | - | ||
| - | 1800P (Pro) | ||||||
| - | 1800PV (Pro-V) | ||||||
| STD Star | 3.500 | 3118SS (wiseco) | - | ||||
| - | 1800S (Pro) | ||||||
| - | 1800SV (Pro-V) | ||||||
| 020 Port | 3.520 | 3118P2 (wiseco) | - | ||||
| - | 1820P (Pro) | ||||||
| - | 1820PV (Pro-V) | ||||||
| 020 Star | 3.520 | 3118S2 (wiseco) | - | ||||
| - | 1820S (Pro) | ||||||
| - | 1820SV (Pro-V) | ||||||
| 030 Port | 3.530 | 3118P3 (wiseco) | - | ||||
| - | 1830P (Pro) | ||||||
| - | 1830PV (Pro-V) | ||||||
| 030 Star | 3.530 | 3118S3 (wiseco) | - | ||||
| - | 1830S (Pro) | ||||||
| - | 1830SV (Pro-V) | ||||||
| 044 Port | 3.544 | 3118P4 (wiseco) | - | ||||
| 044 Star | 3.544 | 3118S4 (wiseco) | - | ||||
| 064 Port | 3.564 | 3118P6 (wiseco) | - | ||||
| 064 Star | 3.564 | 3118S6 (wiseco) | - | ||||
| 120HP 1988-94 90 degree Looper (Big Bore); 125HP 1988-91 90 degree Looper (Big Bore); 125HP 1989-91 90 degree Looper (Big Bore) Commercial ; 130HP 1995-99 |
4 | STD Port | 3.500 | 3119PS (wiseco) | - | ||
| - | 1900P (Pro) | ||||||
| - | 1900PV (Pro-V) | ||||||
| STD Star | 3.500 | 3119SS (wiseco) | - | ||||
| - | 1900S (Pro) | ||||||
| - | 1900SV (Pro-V) | ||||||
| 020 Port | 3.520 | 3119P2 (wiseco) | - | ||||
| - | 1920PV (Pro-V) | ||||||
| 020 Star | 3.520 | 3119S2 (wiseco) | - | ||||
| - | 1920SV (Pro-V) | ||||||
| 030 Port | 3.530 | 3119P3 (wiseco) | - | ||||
| - | 1930P (Pro) | ||||||
| - | 1930PV (Pro-V) | ||||||
| 030 Star | 3.530 | 3119S3 (wiseco) | - | ||||
| - | 1930S (Pro) | ||||||
| - | 1930SV (Pro-V) | ||||||
| 044 Port | 3.544 | 3119P4 (wiseco) | - | ||||
| 044 Star | 3.544 | 3119S4 (wiseco) | - | ||||
| 064 Port | 3.564 | 3119P6 (wiseco) | - | ||||
| 064 Star | 3.564 | 3119S6 (wiseco) | - | ||||
| 135HP 1974-76 140HP 1977-84 crossflow MEASURES .800 " (.20 MM ) FROM BOTTOM OF WRIST PIN HOLE TO BOTTOM OF PISTON SKIRT. **** EARLY MODELS USED AN OFFSET WRIST PIN MEASURING .660 " (BOTTOM OF PIN TO BOTTOM OF PISTON SKIRT) AND USE #3174 PISTONS **** |
4 | STD | 3.500 | 3173PS (wiseco) | - | - | |
| - | - | 1300V (Pro-V) | |||||
| - | 1300 (Pro) | - | |||||
| .020 | 3.520 | 3173P2 (wiseco) | - | - | |||
| - | - | 1320V (Pro-V) | |||||
| - | 1320 (Pro) | - | |||||
| .030 | 3.530 | 3173P3 (wiseco) | - | - | |||
| - | - | 1330V (Pro-V) | |||||
| - | 1330 (Pro) | - | |||||
| .040 | 3.540 | - | - | - | |||
| - | - | 1340V (Pro-V) | |||||
| - | 1340 (Pro) | - | |||||
| .044 | 3.544 | 3173P4 (wiseco) | - | - | |||
| .064 | 3.564 | 3173P6 (wiseco) | - | - | |||
| 135HP 1973
Corssflow, lower offset wrist pin FOR EARLY MODELS USING AN OFFSET WRIST PIN MEASURING .660 " (BOTTOM OF PIN TO BOTTOM OF PISTON SKIRT) |
4 | STD | 3.500 | 3174PS (wiseco) | - | - | |
| 020 | 3.520 | 3174P2 (wiseco) | - | - | |||
| 030 | 3.530 | 3174P3 (wiseco) | - | - | |||
| 044 | 3.544 | 3174P4 (wiseco) | - | - | |||
| 064 | 3.564 | 3174P6 (wiseco) | - | - | |||
| 140HP 1985-87 90 degree Looper (small bore) |
4 | STD Port | 3.500 | 3118PS (wiseco) | - | ||
| - | 1800P (Pro) | ||||||
| - | 1800PV (Pro-V) | ||||||
| STD Star | 3.500 | 3118SS (wiseco) | - | ||||
| - | 1800S (Pro) | ||||||
| - | 1800SV (Pro-V) | ||||||
| 020 Port | 3.520 | 3118P2 (wiseco) | - | ||||
| - | 1820P (Pro) | ||||||
| - | 1820PV (Pro-V) | ||||||
| 020 Star | 3.520 | 3118S2 (wiseco) | - | ||||
| - | 1820S (Pro) | ||||||
| - | 1820SV (Pro-V) | ||||||
| 030 Port | 3.530 | 3118P3 (wiseco) | - | ||||
| - | 1830P (Pro) | ||||||
| - | 1830PV (Pro-V) | ||||||
| 030 Star | 3.530 | 3118S3 (wiseco) | - | ||||
| - | 1830S (Pro) | ||||||
| - | 1830SV (Pro-V) | ||||||
| 044 Port | 3.544 | 3118P4 (wiseco) | - | ||||
| 044 Star | 3.544 | 3118S4 (wiseco) | - | ||||
| 064 Port | 3.564 | 3118P6 (wiseco) | - | ||||
| 064 Star | 3.564 | 3118S6 (wiseco) | - | ||||
| 140HP 1988-94 90* Looper (big bore) |
4 | STD Port | 3.500 | 3119PS (wiseco) | - | ||
| - | 1900P (Pro) | ||||||
| - | 1900PV (Pro-V) | ||||||
| STD Star | 3.500 | 3119SS (wiseco) | - | ||||
| - | 1900S (Pro) | ||||||
| - | 1900SV (Pro-V) | ||||||
| 020 Port | 3.520 | 3119P2 (wiseco) | - | ||||
| - | 1920PV (Pro-V) | ||||||
| 020 Star | 3.520 | 3119S2 (wiseco) | - | ||||
| - | 1920SV (Pro-V) | ||||||
| 030 Port | 3.530 | 3119P3 (wiseco) | - | ||||
| - | 1930P (Pro) | ||||||
| - | 1930PV (Pro-V) | ||||||
| 030 Star | 3.530 | 3119S3 (wiseco) | - | ||||
| - | 1930S (Pro) | ||||||
| - | 1930SV (Pro-V) | ||||||
| 044 Port | 3.544 | 3119P4 (wiseco) | - | ||||
| 044 Star | 3.544 | 3119S4 (wiseco) | - | ||||
| 064 Port | 3.564 | 3119P6 (wiseco) | - | ||||
| 064 Star | 3.564 | 3119S6 (wiseco) | - | ||||