Skip to content
Black Friday deals coming soon!
Black Friday deals coming soon!

K&N 99-09 Yamaha YFM250 / 00-09 YFM400 Replacement Air Filter

by KNN
$54.99

OUT OF STOCK   Contact us for an ETA.

SKU KN-YA-4001
Have a question on this product?

2012 Yamaha YFM400 Big Bear IRS 4x4 400
All Models
2011 Yamaha YFM400 Big Bear IRS 4x4 400
All Models
2010 Yamaha YFM400 Big Bear IRS 4x4 400
All Models
2009 Yamaha YFM400 Big Bear IRS 4x4 400
All Models
2009 Yamaha YFM250 Big Bear 230
All Models
2008 Yamaha YFM400 Big Bear IRS 4x4 400
All Models
2008 Yamaha YFM250 Big Bear 230
All Models
2007 Yamaha YFM400 Big Bear IRS 4x4 400
All Models
2007 Yamaha YFM250 Big Bear 230
All Models
2006 Yamaha YFM400 Big Bear 4x4 384
All Models
2006 Yamaha YFM250 Bruin 230
All Models
2005 Yamaha YFM400 Big Bear 4x4 384
All Models
2005 Yamaha YFM250 Bruin 230
All Models
2004 Yamaha YFM400 Big Bear 4x4 384
All Models
2004 Yamaha YFM400 Big Bear 384
All Models
2004 Yamaha YFM250 Bear Tracker 250
All Models
2003 Yamaha YFM400 Big Bear 4x4 400
All Models
2003 Yamaha YFM400 Big Bear 400
All Models
2003 Yamaha YFM250 Bear Tracker 230
All Models
2002 Yamaha YFM400 Big Bear 4x4 400
All Models
2002 Yamaha YFM400 Big Bear 400
All Models
2002 Yamaha YFM250 Bear Tracker 230
All Models
2001 Yamaha YFM400 Big Bear 4x4 400
All Models
2001 Yamaha YFM400 Big Bear 400
All Models
2001 Yamaha YFM250 Bear Tracker 230
All Models
2000 Yamaha YFM400 Big Bear 4x4 384
All Models
2000 Yamaha YFM400 Big Bear 384
All Models
2000 Yamaha YFM250 Bear Tracker 230
All Models
1999 Yamaha YFM250 Bear Tracker 230
All Models

K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude. Generally, no jet changes are required with just a K&N filter element. K&N replacement air filters are washable and reusable and provide high air-flow with excellent filtration.

  • Designed to provide increased horsepower and acceleration
  • Specifically developed for Off-Road, Motocross, ATVs, UTVs and Side by Sides
  • Pleated cotton media provides a large filtration area offering low restriction, high-capacity and long service intervals
  • Multiple layers of woven cotton gauze media offers excellent filtration
  • Fits directly into OEM air box with application specific sealing bead ensuring a precise fit
  • No fuel management modifications are required to obtain increased performance
  • Washable & reusable, most are pre-oiled and ready to ride!
  • One Year Limited Warranty

Product Specifications

Filter Material Cotton Gauze
Height 5.875 in (149 mm)
Inner Wire No
Inside Diameter 1.938 in (49 mm)
Outside Diameter 3.938 in (100 mm)
Top Style Rubber
Top Material None
Air Filter Shape Round
Flanges None
Package Contents 1 Air Filter, 1 K&N 1oz Sealing Grease
Package Quantity 1
Product Style Round Air Filter
Weight 0.6 lb (0.3 kg)
Filter Re-Oiling Amount 0.49 oz (15 ml)
Product Box Height 7.25 in (184 mm)
Product Box Length 4.63 in (117 mm)
Product Box Width 4.63 in (117 mm)