
§ 01 / Part
09260685 ENGINE VALVE INTAKE STEEL
incl. VAT
Usually dispatched within 3 working days.
Authorised stockist
PROX
14-day returns
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§ 02 / About this part
What it is
The PROX ENGINE VALVE INTAKE STEEL, top end. Stocked by Iron Offroad, the UK MX hard parts specialist.
Steel construction provides a durable alternative for your top-end rebuild. This part sits in the cylinder head and regulates the fuel-air mixture entering the bore. Over time, high RPM and heat cause the valve face to cup or the stem to stretch. Replacing worn components restores lost compression and ensures reliable starting. This specific fitment matches OEM cross-reference 5KM-12111-00. Steel offers increased longevity compared to titanium for riders who demand a longer service interval. Always lap the valve into the seat for a perfect seal. Check your clearances regularly to maintain peak performance.
§ 03 / Specs
The numbers
- Brand
- PROX
- Part number
- 09260685
- Category
- Top End
- Weight
- 0.05 kg
- OEM cross-refs
- 5KM-12111-00
- VAT
- 20%
// Fitment
Will it fit your bike?
Fits 25 models · 25 year-bands
Yamaha 25 models
- SZR 660 1996–1997
- XTZ 660 1991–1996
- YFM 660 F 4X4 2002–2004
- YFM 660 F LE 4X4 2004
- YFM 660 FA 4X4 2005–2006
- YFM 660 FA SE 4X4 2005–2006
- YFM 660 FAH 4X4 2005–2006
- YFM 660 FAHD 4X4 2006
- YFM 660 FAHW 4X4 2005
- YFM 660 FG 4X4 2007–2008
- YFM 660 FGH 4X4 2007–2008
- YFM 660 FH 4X4 2002–2004
- YFM 660 R 2001–2005
- YFM 660 R LE 2003–2004
- YFM 660 R SE 2005
- YXR 660 F 4X4 2007
- YXR 660 F DU 4X4 2007
- YXR 660 F EX 4X4 2007
- YXR 660 F SE 4X4 2007
- YXR 660 F SP 4X4 2007
- YXR 660 FA 4X4 2004–2006
- YXR 660 FA EX 4X4 2006
- YXR 660 FA SE 4X4 2006
- YXR 660 FAH 4X4 2004–2006
- YXR 660 FH 4X4 2007
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
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