The Wiseco Crankshaft Kit WPC100 is a complete bottom-end rebuild kit for Yamaha YFZ350 Banshee models. It includes a precision-trued crankshaft, bottom-end gasket and seal set, crank bearings, and small-end bearings. Designed for superior performance and durability, this kit meets OEM specifications and ensures reliability for high-performance applications.

Features:

• Precision-trued to OEM specifications and factory-assembled.


• Double-forged connecting rods for superior dimensional consistency and improved grain flow.


• Shot-peened rods eliminate residual stresses and improve durability.


• Corrosion-resistant surface treatment for extended lifespan.


• Case-hardened rod bores (58-62 RC) optimize bearing surfaces.


• Optimized radial running clearance for maximum crank pin bearing performance.


• Precision honing for ultra-round bearing surfaces.


• Engineered oiling slots enhance rod strength and bearing life.


• Double-drilled small ends ensure enhanced piston pin lubrication and cooling.


• Silver-coated bronze phosphor thrust washers reduce friction and improve oil retention.


• Crank pin bearings made of high-quality hot-rolled steel, case-hardened to 58-62 RC.


• Caged needle roller bearings allow for high RPM operation.


• Precision-machined crank webs for reliability and balance.


• Includes premium main bearings and a complete bottom-end gasket set with all seals and gaskets required for installation.

Compatible Models:

• Yamaha YFZ350 Banshee (1987–2006)


• Yamaha YFZ350LE Banshee Limited Edition (2003–2005)


• Yamaha YFZ350SE Banshee Special Edition (2005–2006)


• Yamaha YFZ350SP Banshee 50th Anniversary Edition (2006)

Part Number: WPC100