Description
K&N oil filter. Manufacturer part number KN-142.
WPS part number 56-0142.
K&N oil filter. Manufacturer part number KN-142.
WPS part number 56-0142.
WPS lists this part for the following vehicles. Match your exact model and year.
Follow the position, mounting and installation notes in the product description. Modified vehicles may require different parts.
| Years | Make | Model |
|---|---|---|
| 2007–2009 | TM | SMX 450F |
| 2008–2009 | TM | SMX 660F |
| 2000–2006 | Yamaha | TT-R250 |
| 2001–2002 | Yamaha | WR250F |
| 1998–2000 | Yamaha | WR400F |
| 2001–2002 | Yamaha | WR426F |
| 1987–1995 | Yamaha | YFM350ER Moto-4 |
| 1987–1999 | Yamaha | YFM350FW Big Bear 4WD [SRA] |
| 1995–2005 | Yamaha | YFM350FX Wolverine 4WD [SRA] |
| 2004–2013 | Yamaha | YFM350R Raptor |
| 1996–1999 | Yamaha | YFM350U Big Bear 2WD [SRA] |
| 1987–2004 | Yamaha | YFM350X Warrior |
| 2000–2004 | Yamaha | YFM400 Big Bear 2WD [SRA] |
| 1993–1999 | Yamaha | YFM400FA Kodiak 4WD [SRA] |
| 2000–2006 | Yamaha | YFM400FB Big Bear 4WD [SRA] |
| 2007–2012 | Yamaha | YFM400FBI Big Bear 4WD [IRS] |
| 1988 | Yamaha | YFP350 Terra Pro |
| 2001–2002 | Yamaha | YZ250F |
| 1998–1999 | Yamaha | YZ400F |
| 2000–2002 | Yamaha | YZ426F |
Source: WPS vehicle-fitment data · WPS part 56-0142 · Checked November 11, 2026.
| Weight | 0.09 lbs |
|---|---|
| Dimensions | 2.18 × 2.18 × 2 in |
Check your owner’s manual for oil grade and capacity.



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