- OEM in appearance
- Increases horsepower and engine displacement
- Includes a hand matched, forged Vertex big bore piston made from the highest quality 2618 aluminum alloy for superior strength and durability
- Includes top end gasket kit that includes all gaskets and o-rings needed for a top end rebuild
Fits Yamaha YFZ450 (17), YFZ450R (09-24), YFZ450X (10-11)
Part number in this product:
21003-K02
