§ 01 / Part
KN142 OIL FILTER YAMAHA
incl. VAT
Usually dispatched within 3 working days.
Authorised stockist
K & N
14-day returns
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§ 02 / About this part
What it is
The K & N OIL FILTER YAMAHA, oil filters. Stocked by Iron Offroad, the UK MX hard parts specialist.
This oil filter sits in the engine's lubrication path to trap debris before it reaches the bearings. It is a direct replacement for OEM 1UY134400100, 1UY1344002, and 1UY134400200. Regular service intervals are critical for maintaining engine life, especially in dusty off-road environments. Replace this unit every time you change your oil to ensure the bypass valve remains clear. Check that the sealing surface is clean before fitting the new element. Reliable filtration helps maintain the integrity of your piston rings and cylinder bore over long-term use.
§ 03 / Specs
The numbers
- Brand
- K & N
- Part number
- KN142
- Category
- Oil Filters
- Weight
- 0.04 kg
- OEM cross-refs
- 1UY134400100, 1UY1344002, 1UY134400200
- VAT
- 20%
// Fitment
Will it fit your bike?
Fits 45 models · 46 year-bands
TM Racing 9 models
Yamaha 37 models
- TT-R 250 2000–2006
- WR 250 F 2001–2002
- WR 400 F 1999–2001
- WR 426 F 2001–2002
- YFM 350 ER 1987–1995
- YFM 350 FH 4X4 1999
- YFM 350 FW 4X4 1987–1997
- YFM 350 FW MNH 4X4 1992–1997
- YFM 350 FWB 4X4 1997–1999
- YFM 350 FWB MNH 4X4 1997
- YFM 350 FWX 4X4 1999
- YFM 350 FX 4X4 1996–2005
- YFM 350 FX MNH 4X4 1995–1997
- YFM 350 R 2005–2013
- YFM 350 R SE 2005–2007
- YFM 350 R SE2 2007
- YFM 350 U 2x4 1996–1999
- YFM 350 U MNH 2x4 1996–1997
- YFM 350 X 1987–2004
- YFM 350 X 2x4 2005
- YFM 350 X MNH 1991–1997
- YFM 400 2X4 2000–2004
- YFM 400 F 4X4 2003–2006
- YFM 400 FB 4X4 2007–2012
- YFM 400 FBE 4X4 2007
- YFM 400 FBH 4X4 2007–2012
- YFM 400 FH 4X4 2000–2002
- YFM 400 FP 4X4 2003–2004
- YFM 400 FW 4X4 1993–1997
- YFM 400 FW 4X4 2003–2004
- YFM 400 FW MNH 4X4 1993–1995
- YFM 400 FWB 4X4 1999
- YFM 400 H 2x4 2001–2002
- YFP 350 U 1988
- YZ 250 F 2001–2002
- YZ 400 F 1998–1999
- YZ 426 F 2000–2002
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
