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K&N YA-2597 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   9 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-2597 Air Filter fits some Yamaha YFB250 Timberwolf, Yamaha YFB250FW Timberwolf 4x4, Yamaha YFM250 Moto-4, Yamaha YFM350 Moto-4, Yamaha YFM350FW Big Bear, Yamaha YFM400F Kodiak, and Yamaha YFP350 TerraPro 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

Filter MaterialCotton Gauze
Height5.5 in (140 mm)
Inner WireNo
Inside Diameter1.875 in (48 mm)
Outside Diameter3.313 in (84 mm)
Top StyleRubber
Top MaterialNone
Air Filter ShapeRound
Package Contents1 Air Filter
Package Quantity1
Product StyleRound Air Filter
Weight0.6 lb (0.3 kg)
Filter Re-Oiling Amount0.49 oz (14 ml)
Product Box Height7.25 in (184 mm)
Product Box Length4.63 in (117 mm)
Product Box Width4.63 in (117 mm)

K&N YA-2597 Air Filter Product Reviews

Monday, January 1, 2018 - Part YA-2597
Fast service and shipping, it was easy to find the correct filter and it fits perfect. I will recommend to family and friends.

James Eggleston
Pueblo West, Colorado
Friday, August 11, 2017 - Part YA-2597
Part was exactly what I wanted and came in a timely manner. The difference in performance between the standard filter and the K&N filter is noticeable.

Aaron Neilsen
Jingili, Australia
Monday, June 12, 2017 - Part YA-2597
Great air filter... just a costly investment... the price is the only thing I don't like about it. It works well on my early 90s Yamaha Timberwolf 250

Matthew Frye
Rockvale, Tennessee
Sunday, September 18, 2016 - Part YA-2597
Had to replace the stock filter on my atv. All new OEM was almost 100$. K&N was about half and fit great. Delivery was good, and can be cleaned, not just thrown out.

Scott Frey
Holtwood, Pennsylvania
Saturday, August 27, 2016 - Part YA-2597
Shipment was immediate and the filter was as ordered.

Gail Day
Brighton, Michigan
Tuesday, August 16, 2016 - Part YA-2597
Great fit and better then oem.

John Roberts
Depew, New York
Thursday, August 11, 2016 - Part YA-2597
I have used K&N products for years in all of my vehicles. I've used both cold air intakes and factory replacements for my air filters and I have used K&N oil filters. If you are a car-person, you will understand the following: my vehicles feel, sound, and perform better using K&N products and I feel more secure knowing that I have the highest quality products in my vehicle. This product will be going in one of my ATV's and I know that I will have the same feeling as I do with my full-size vehicles.

Mark Hicks
Andalusia, Colorado