Wiseco Bottom End Rebuild Kit for 2003-05 Yamaha YZ450F - 63.40mm - WPC139 2005 Polaris Ranger 500 4x4 - Lower Inexpensive Alternative to OEM Replacement

Inexpensive Alternative to OEM Replacement Parts

FMF took a hard look at their top of the line mufflers to produce race-inspired performance at a more economical price

we offer ESG112 with a full one year warranty

Part Number: 4673M06900

Wiseco Bottom End Rebuild Kit for 2003-05 Yamaha YZ450F - 63.40mm - WPC139 2005 Polaris Ranger 500 4x4 - Lower Inexpensive Alternative to OEM ReplacementWiseco Performance Complete Bottom End Rebuild Kit 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 for hardening rather than induction