Kalama Piston Kit Engine Gasket Set for Yamaha YZ250 YZ 250 03~23 4-Stroke Yamaha YFZ450 04~09

Yamaha YFZ450 04~09

Precisely cut for smoothly running

Piston skirts are Molybdenium Teflon coated to minimize resistance/wear and provide extended lift

Crankshaft: 5DH-11400-00-00

Kalama Piston Kit Engine Gasket Set for Yamaha YZ250 YZ 250 03~23 4-Stroke Yamaha YFZ450 04~09Item fits Yamaha Models: YZ 250 03~23 Item includes: Piston w RIK Ring Kit x 1 Bore Size: 66. 35 mm ~ 66. 37 mm Replace OE P N: 1P8 11631 00 A0 Complete Top & Bottom End Gasket Set x 1 Replace OE P N: 5UP 11351 00 00, 93210 74316 00 , 93211 02703 00 Feature: Made In Taiwan A390 aluminum alloy Hard Anodize on crown and side for ignition and combustion resistance MoS2 Skirt coating reduce friction and improve wear RIK Piston Ring: most well know