ProX Piston Kit, 96.95 mm for Yamaha WR450F, YZ450F and YZ450FX (01.2453.A)

The PROX 01.2453.A Piston Kit is designed for compatible Yamaha WR450F, YZ450F and YZ450FX motorcycle engines. This complete replacement kit includes a piston, piston rings, wrist pin, circlips and an instruction sheet, providing the essential components needed for a reliable piston service or engine rebuild.
The piston is precision machined on state-of-the-art CNC equipment to support accurate fitment and consistent performance. Its 96.95 mm size is engineered for applicable Yamaha engine configurations, helping maintain proper piston movement and combustion chamber sealing when installed according to the manufacturer’s specifications.
PROX piston rings are produced by OEM factories to exact specifications, delivering dependable quality and compatibility for demanding off-road and competition applications. The included wrist pin and circlips complete the piston assembly, while the instruction sheet provides useful installation guidance. Verify engine fitment and piston specifications before installation to ensure compatibility with your motorcycle.

Features:

• Complete piston kit: Includes piston, piston rings, wrist pin, circlips and instruction sheet

• Precision-machined piston: Manufactured on state-of-the-art CNC equipment for accurate fitment

• OEM-specification rings: Piston rings are produced by OEM factories to exact specifications

• Application fitment: Designed for compatible Yamaha WR450F, YZ450F and YZ450FX models

• Piston size: 96.95 mm

Ships from Parts Unlimited.