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K&N 33-2443 Air Filter

Replacement Filters > Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.9 out of 5 stars   29 Customer Reviews
  • Designed to boost horsepower and rate of acceleration
  • Can be cleaned and used again
  • High air flow with exceptional filtration
  • Lasts up to 50,000 miles before cleaning is required depending on driving conditions
  • Works with original equipment manufacturer vehicle electronics
  • Emissions legal in all 50 US states
  • Will NOT void vehicle warranty
  • Million Mile Limited Warranty®
K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for the majority of vehicles on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be the last air filter your vehicle will ever need.

[More Information on K&N Replacement Air Filters]

Product Specifications

Air Filter ShapePanel
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.2 oz (36 ml)
Height1.125 in (29 mm)
Outside Length9.625 in (244 mm)
Outside Width8.75 in (222 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height11.56 in (294 mm)
Product Box Length10.44 in (265 mm)
Product Box Width1.75 in (44 mm)
Product StylePanel Air Filter
Weight1.2 lb (0.6 kg)

K&N 33-2443 Air Filter Product Reviews

Wednesday, October 19, 2016 - Part 33-2443
I have just installed the filter so I haven't put many miles on the car yet, but I am very happy to know that I can simply clean it periodically and not be locked in to paying $25 to $30 dollars every few thousand miles to the dealer.

Don Holloman
Littleton, Colorado
Tuesday, October 11, 2016 - Part 33-2443
Excellent! Filer fits right in, replacement was a snap. I hope I'm not imagining this, but it seems I get around 2mpg better mileage, on average. Can't complain about that.

Thomas Jensen
Florissant, Colorado
Friday, October 7, 2016 - Part 33-2443
Very happy with the service I received. Shipping was fast. The product is great quality that you can easily see the moment you take the filter out of the box.

Mike Whynot
Keswick, Canada
Thursday, September 1, 2016 - Part 33-2443
Great product, use in all my vehicles.

Lawrence Falk
Austin, Texas
Monday, August 8, 2016 - Part 33-2443
I've purchased and used K&N filters in the past and have always been extremely satisfied with their product. This item is no different. Superior quality, OEM fit and easy to install. I'm also glad to see K&N expand into cabin air filters. I've purchased one for my 2015 Highlander and am greatly satisfied with it as well.

T Duncan
Peoria, Illinois
Wednesday, August 3, 2016 - Part 33-2443
Will change all my vehicles

Annette Island Gas Services
Metlakatla, United States
Tuesday, July 19, 2016 - Part 33-2443
Better performance from our RX350. All our cars have knfilters. Next will be cabin filters.

Ronnie De Asis
Hollister, California