§ 01 / Part
09100027 PISTON KIT ALUMINUM 76.95MM A
incl. VAT
Usually dispatched within 3 working days.
Authorised stockist
PROX
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§ 02 / About this part
What it is
The PROX PISTON KIT ALUMINUM 76.95MM A, motocross part. Stocked by Iron Offroad, the UK MX hard parts specialist.
An A-grade 76.95mm piston kit for the YZ 250 F and WR 250 F platform, which also covers the Yamaha-engined EC 250 F. Cross-references OEM part 5NL-11631-20, so it drops into a cylinder still within factory tolerance. Piston, rings, pin and circlips included. A 250 four-stroke race engine punishes skipped intervals harder than any two-stroke, and the failure mode is expensive. Inspect the bore for scoring or heat marks before assembly, gap the rings, and take care seating the cylinder so nothing snags on the way in.
§ 03 / Specs
The numbers
- Brand
- PROX
- Part number
- 09100027
- Weight
- 0.26 kg
- OEM cross-refs
- 5NL-11631-20
- VAT
- 20%
// Fitment
Will it fit your bike?
Fits 3 models · 3 year-bands
Gas Gas 1 model
Yamaha 2 models
No matches. Try a different make or model.
* 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
Iron Offroad
