J.E. Pistons 379450 FSR Ultra Series Piston Kit - Standard Bore 93.00mm, 9.0:1 Compression bicycle-e-power-accessories-tires Heat resistant DUMAX drive belt

Heat resistant DUMAX drive belt increases strength 30% compared to OEM and other aftermarket belts

2009-2017 Kawasaki KAF620 Mule 4000

Base 175mm

Rear pulley has a 40mm

2018-2022 Can-Am Commander Max 1000R XT

J.E. Pistons 379450 FSR Ultra Series Piston Kit - Standard Bore 93.00mm, 9.0:1 Compression bicycle-e-power-accessories-tires Heat resistant DUMAX drive beltBore: 93. 00mm Compression: 9. 0: 1 Compression Sizing: Standard Bore In house forging has allowed JE to develop proprietary Aligned Grain Flow Technology forging technology that directs the grain flow of the aluminum to flow around critical areas of the piston, increasing strength. Lateral gas ports channel combustion gases to the back of the top ring groove, which adds pressure behind the compression ring to keep it pushed against the cylinder,