2-SPI Dual Ring Moly Pistons
2-SPI Ring Sets
2-SPI Wrist Pins
4-SPI Circlips 

Piston Skirts are Molybdenium Teflon Coated

SPI pistons are engineered to provide the best possible path for, 
combustion chamber heat transfer to the cylinder walls
All SPI pistons, rings, pins, & circlips are manufactured to OEM specifications
All individual components are interchangeable with original parts
Piston weight is compatible with original piston
T-Moly series with Teflon-Molybdenum coating
T-Moly series pistons reduce friction, resist seizure, & improve durability

78 mm STD (Stock) BORE

1999 Ski-Doo MXZ 670 HO

1999 Ski-Doo MXZ 670 SE HO

1999 Ski-Doo MXZ 670 HO Tony Haikonnen Series


1999 Ski-Doo Summit X 670 HO

1998 Ski-Doo Summit X 670 HO

   
 






 




INTERNATIONAL BUYERS: Our shipping fees do not include any duties, taxes, or brokerage fees. You are responsible for ALL fees.

Photo Above is Universal