K&N AC-1009 Air Filter

Replacement Filters / Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5     2 Customer Reviews
$57.99 USD
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Product Overview

  • 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 AC-1009 Air Filter fits some Arctic Cat 1000 LTD, Arctic Cat 1000 MudPro EFI H2 4x4 Auto, Arctic Cat 1000 XT, Arctic Cat 1000i GT, Arctic Cat 1000S H2 EFI, Arctic Cat MudPro 1000, Arctic Cat MudPro 1000 LTD, Arctic Cat Thundercat 1000 4x4 Auto, Arctic Cat Thundercat 1000 4x4 Auto LE, Arctic Cat TRV1000, Arctic Cat TRV1000 EFI Cruiser, Arctic Cat TRV1000 H2 EFI, Arctic Cat TRV1000 H2 EFI Cruiser, and Arctic Cat TRV1000 LTD 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]
Air Filter ShapeOval
Filter MaterialCotton Gauze
Height2 in (51 mm)
Inner WireNo
Inside Length7.563 in (192 mm)
Inside Width4.5 in (114 mm)
Outside Length8.938 in (227 mm)
Outside Width5.875 in (149 mm)
Top StyleRubber
Top MaterialNone
Package Contents1 Air Filter
Package Quantity1
Warranty1 Year Limited
Product StyleOval Air Filter
Base Outside Length8.938 in (227 mm)
Base Outside Width5.875 in (149 mm)
Top Outside Length8.938 in (227 mm)
Top Outside Width5.875 in (149 mm)
Weight1.2 lb (0.5 kg)
Filter Re-Oiling Amount0.64 oz (19 ml)
Product Box Height3.63 in (92 mm)
Product Box Length8.5 in (216 mm)
Product Box Width8.5 in (216 mm)
WARNING: Cancer and reproductive

K&N AC-1009 Air Filter Product Reviews

Tuesday, January 9, 2018 - Part AC-1009
The filter is great. The only reason I gave 4 stars was due to the fact that I had to enlarge the holes, with a drill bit, on the filter to get it to fit all the way down into the air box. For a filter that costs this much, you shouldn't have to do that. I've had K&N filters on some of my cars in the past and really like the fact that you can clean them for reuse. These filters are really high quality.

Casey Koon
Denham Springs, Louisiana
Wednesday, October 16, 2013 - Part AC-1009
I installed the AC-1009 in my 2008 Arctic Cat Thundercat that has about 4000 miles on it The performance immediately increased in the higher R.P.M.'s The increase was noticeable in both engine response and power.