
§ 01 / Part
09260815 ENGINE VALVE EXHAUST STEEL
incl. VAT
Usually dispatched within 3 working days.
Authorised stockist
PROX
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§ 02 / About this part
What it is
The PROX ENGINE VALVE EXHAUST STEEL, top end. Stocked by Iron Offroad, the UK MX hard parts specialist.
This steel exhaust valve is a durable alternative to titanium, cross-referencing with OEM 5HO-12121-00. It sits in the exhaust port of the cylinder head. Steel valves offer a longer service life for riders who prioritise reliability over outright weight savings. They resist the extreme heat of the exhaust stroke better than many stock components. When fitting these to your bike, ensure your valve springs are rated for the additional weight of steel. Always lap the valve into the seat to ensure a perfect seal and restored compression during your top-end rebuild.
§ 03 / Specs
The numbers
- Brand
- PROX
- Part number
- 09260815
- Category
- Top End
- Weight
- 0.05 kg
- OEM cross-refs
- 5HO-12121-00
- VAT
- 20%
// Fitment
Will it fit your bike?
Fits 10 models · 11 year-bands
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
// Related
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// PROX

