87-13 Yamaha Warrior Raptor 350 YFM300 Wiseco Crankshaft Bottom End Kit WPC137

Wiseco’s bottom-end rebuild kits help save time and money for your dirt bike, ATV, or UTV bottom-end rebuild. Available for many popular applications, these kits contain a crankshaft assembly, main bearings, and a bottom-end gasket kit, all in one box under one part number.

• Includes complete crankshaft assembly, main bearings, and complete bottom-end gasket and seal kit in one box
• Elevated engineering and quality control measures to ensure reliable service
• OEM quality main bearings and rod bearings for smooth operation and reliable longevity
• Precision machined crank webs for ultimate strength and durability
• Copper-plated, heat-treated, and shot-peened connecting rod to remove residual stress and smooth surface blends