Wiseco Engine Rebuild Kit - YFM660R Raptor - 101.0 mm - PWR133-101

Kit includes a premium forged piston kit with stock compression ratio and a high-quality cam chain. Top and bottom end components are included for a complete engine rebuild. Crankshaft and rod assembly designed and inspected to assure durability. Main bearings, seals, gaskets, a Wiseco hour meter and bracket are also included in the kit.