Wiseco Crankshaft Assembly 2003-05 Yamaha YZ450F Part# WPC139

Wiseco Crankshaft Assembly 2003-05 Yamaha YZ450F Part# WPC139

• Brand: Wiseco
• Manufacturer's Part Number: WPC139
• Part Type: Powersports Crankshafts
• Product Line: Wiseco Crankshaft Kits
• Crankshaft Material: Forged 4140 steel
• Connecting Rods Included: Yes
• Connecting Rod Length Center to Center (mm):103.500mm
• Crankshaft Bearings Included: Yes
• Quantity: Sold as a kit.

Wiseco crankshaft kits contain everything you need to complete your rebuild for a job done right, the first time! These crankshafts, connecting rods, bearings, and bottom end gaskets meet or exceed OEM specifications for the maximum horsepower and torque that every rider wants.

Features include:

• Double forged connecting rods feature shot peening, oil slots, and coated bronze thrust washers
• Bottom end gasket kits are made from premium materials, exceeding OEM standards for an exceptional seal between critical mating surfaces
• High-quality main bearings provide maximum life and smooth operation at high rpm
• Surface treatment prevents corrosion and pitting while adding strength to the assembly
• The bushed top end of rod retains oil and eliminates pin galling
• Case-hardened bottom end rod bores optimize the bearing running surface
• Hot rolled steel, case-hardened crankpin bearings
• Caged needle roller bearings provide the highest possible rpm