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YA-4000
$64.99 USD
MSRP $87.39 25.6% Off
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K&N YA-4000 Air Filter

Replacement Filters > Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.8 out of 5 stars   4 Customer Reviews
  • 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
The K&N YA-4000 Air Filter fits some Yamaha YFM400 Kodiak Auto 2x4, Yamaha YFM400 Kodiak Auto 4x4, Yamaha YFM400A Kodiak, and Yamaha YFM400F Kodiak models. See vehicle applications link for details.
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.

[More Information on Off-Road Motorcycle and ATV Air Filters]

Product Specifications

Air Filter ShapeUnique
Filter MaterialCotton Gauze
FlangesNone
Height7.313 in (186 mm)
Package Contents1 Air Filter
Package Quantity1
Product StyleUnique Air Filters
Weight0.8 lb (0.4 kg)
Filter Re-Oiling Amount0.64 oz (19 ml)
Product Box Height9.25 in (235 mm)
Product Box Length5.63 in (143 mm)
Product Box Width4.63 in (117 mm)

K&N YA-4000 Air Filter Product Reviews

Thursday, November 30, 2017 - Part YA-4000
I replaced the factory air cleaner with a K&N. It fit perfectly, easy install.

Zack Keenan
West Suffield, Connecticut
Tuesday, December 20, 2016 - Part YA-4000
Delivered when promised. Fits 2000 Kodiak 400 perfectly.

Michael Pendergast
Saratoga Springs, New York
Wednesday, June 24, 2015 - Part YA-4000
Seems to work very well on a few rides so far. Instructions and product don't exactly match. Instructions say to install a gasket to air box, but gasket is already stuck to end of filter.

Mark Jensen
Riverton, Utah