Yamaha OEM (17-19) YZ250FX Piston Top End Rebuild Kit 1SM-WB033-00-00

Genuine Yamaha OEM Piston Rebuild Kit 1SM-WB033-00-00 is designed for select Yamaha YZ250F, YZ250FX and WR250F four-stroke motorcycles. This complete factory top-end kit provides the primary components needed to replace the piston and service the upper engine.

Yamaha Genuine piston rebuild kits use a forged aluminum piston engineered to meet Yamaha’s original fitment, durability and performance standards.

Fits Select Yamaha Models:

2016–2018 Yamaha YZ250F
2017–2019 Yamaha YZ250FX
2018–2019 Yamaha WR250F

Kit Includes:

1 × Cylinder Head Gasket — 1SM-11181-00-00
1 × Cylinder Head Cover Gasket — 1SM-11193-00-00
1 × Cylinder Head Cover Gasket 2 — 1SM-11194-00-00
1 × Cylinder Gasket — 1SM-11351-00-00
1 × Piston Ring Set — 1SM-11603-00-00
1 × Standard Piston — 1SM-11631-10-00
1 × Piston Pin — 1SM-11633-20-00
1 × Valve Stem Seal — 4FM-12213-00-00
1 × Exhaust Pipe Gasket — 5NL-14613-00-00
2 × Cylinder Head Plug Gaskets — 5UM-1119E-00-00
1 × Copper Gasket — 90430-06014-00
2 × Piston Pin Circlips — 93450-17129-00

Complete Kit Part Number: 1SM-WB033-00-00

Quantity: One Complete Kit

Actual kit contents may vary slightly by application. Always verify the complete motorcycle model, production year and engine configuration before ordering.