Wiseco 10-17 Yamaha YZ450 Crankshaft Assembly

Wiseco is known for making well-built engine components for a wide range of powersports vehicles. When you're looking for a solid crankshaft assembly to complete your engine rebuild without breaking the bank, this unit is a great option. It's the same assembly you'd find in their complete bottom-end kits, but packaged individually for convenience.

This crankshaft assembly is drop-in ready, meaning it's been tested and inspected to ensure it meets strict tolerances for run-out and critical dimensions. The crank webs are precision machined for strength, and the connecting rod has undergone an improved process. This includes copper plating and heat-treating to optimize material properties, which helps with bearing wear and maximizes durability. The connecting rod's surface treatment also works to smooth out surface blends and remove residual stress risers, further increasing its ability to handle load and extend its service life. An OEM quality big end bearing is used in the assembly, and the timing keyway is inspected for accuracy.