Wiseco Bottom End Rebuild Kit for 1987-13 Yamaha YFM350 Models - 64.50mm - WPC137 1988 Kawasaki KLF300 Bayou 1999 Arctic-Cat Thundercat 1000 Mountain

1999 Arctic-Cat Thundercat 1000 Mountain Cat

1981-83 Kawasaki KZ1000 LTD

2006 Polaris Sportsman 800 4x4

2011 KTM 530 EXC

2009 Suzuki SV650SA ABS

Wiseco Bottom End Rebuild Kit for 1987-13 Yamaha YFM350 Models - 64.50mm - WPC137 1988 Kawasaki KLF300 Bayou 1999 Arctic-Cat Thundercat 1000 MountainWiseco Performance Complete Bottom End Rebuild Kit Part Number: WPC137 Stroke: 64. 50mm Wiseco now provides an all in one kit for your bottom end Made with the toughest materials for increased performance and life span Includes the Crankshaft Assembly, Main Bearings and Bottom End Gasket Kit Wiseco Crankshafts are 4340 steel, core hardened and tempered to reduce stress and optimize tensile strength. The crankshafts are made with a nitriding process