§ 01 / Part
Vertex Piston Kit Ø77.00 D 09104082 for Yamaha WR250F 2018 YZ250F 2016–2018
incl. VAT
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§ 02 / About this part
What it is
Vertex piston kit Ø77.00 D to fit the Yamaha WR250F, model year 2018, and Yamaha YZ250F, model years 2016–2018.
This D-sized kit is the largest standard oversize for 77mm four-stroke cylinders. It is used to extend the life of a cylinder that has reached its wear limit. It sits in the top-end and restores the compression needed for peak engine performance. Replace this kit during your scheduled engine service to maintain reliability. The kit includes the piston, rings, gudgeon pin, and circlips. Accurate measurement of the bore is critical before selecting the D-size. Ensure the cooling system is fully bled after reassembly to prevent hot spots and premature piston wear.
§ 03 / Specs
The numbers
- Brand
- VERTEX
- Part number
- 09104082
- Category
- Top End
- Weight
- 0.24 kg
- VAT
- 20%
// Fitment
Will it fit your bike?
Fits 2 models · 2 year-bands
* Fitment data is provided as a guide. Verify compatibility against the bike's owner's manual or service handbook before ordering. Iron Offroad accepts no liability for incorrect application. Full terms and conditions apply.
§ 05 / About Iron Offroad
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