K&N 33-2439

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   22 Customer Reviews
List Price: $83.01
Your Price: USD $52.99

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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 virtually every vehicle 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]
  • 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®

Product Specifications

Air Filter ShapePanel
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.73 oz (51 ml)
Height1.25 in (32 mm)
Outside Length11 in (279 mm)
Outside Width8.875 in (225 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
Weight1.6 lb (0.7 kg)

Product Reviews

See all reviews!
Review part 33-2439
Thursday, October 29, 2015 - Part 33-2439
Works great just like all K&N products I have bought.

Roger E. Pease
Wednesday, September 23, 2015 - Part 33-2439
I just wanted to send you a quick message to let you know that you have won me over. I drive a 2011 Chevy Equinox four-cylinder for work every day. I have always enjoyed pretty good mileage and occasionally will try to see just how high my average mileage will go when I try to be aware of how I drive. Previously my record high was 36.8 MPG. I recently installed a K&N air filter and I had thought that I had seen an average jump of about 3 miles per gallon in every day driving. I just drove the same 70 mile round-trip where I had previously achieved my highest average mileage of 36.8 MPG. Today I drove it with a K &N air filter installed and was able to achieve a new record high of 39.2 MPG. I am now going to install K & N air filters in my other family vehicles. Thank you, Darin Keiser

Darin Keiser
Elkton, Maryland
Thursday, September 17, 2015 - Part 33-2439
I did notice a little difference in power.

Michael Atchue
North Grafton, Massachusetts
Tuesday, September 08, 2015 - Part 33-2439
Increased MPG 2.5

Glendale, AZ
Friday, August 07, 2015 - Part 33-2439
Excellent service, great product, good price.

James Makowiec
Baldwinsville, New York
Monday, August 03, 2015 - Part 33-2439
Not quite the improvement I noted in my 2011 Carolla. However, the 2013 Chevy Equinox (4 cyl) is not known for it's acceleration. Gas mileage has improved for an average of 2 MPG

Arthur Morin
Portland, Connecticut
Tuesday, July 28, 2015 - Part 33-2439
I've bought air filters for my last 3 trucks and seen no reason to stop. And also a air tube for my GMC. The vehicles run better with them.

Chesapeake, Virginia