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K&N 33-2439 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   51 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®
The K&N 33-2439 Air Filter fits some Chevrolet Equinox, and GMC Terrain models. See vehicle applications link for details.
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
Height1.25 in (32 mm)
Outside Length11 in (279 mm)
Outside Width8.875 in (225 mm)
Package Contents1 Air Filter
Package Quantity1
Product StylePanel Air Filter
Weight1.6 lb (0.7 kg)
Filter Re-Oiling Amount1.73 oz (51 ml)
Product Box Height11.56 in (294 mm)
Product Box Length10.44 in (265 mm)
Product Box Width1.75 in (44 mm)

K&N 33-2439 Air Filter Product Reviews

Sunday, March 11, 2018 - Part 33-2439
Perfect fit, Equinox runs awesome.

Mike Gervais
Calgary, Canada
Wednesday, December 27, 2017 - Part 33-2439
Just acquired this vehicle and as I do with all my vehicles the first thing I do is order a K&N air filter, these are the only air filters I use. Every 3 months I inspect and depending upon driving conditions clean about ever 6 months or so. Engine breaths easier and I never have to buy a replacement filter for this vehicle again. This is all I use.

Gary Bert
Windham, New Hampshire
Tuesday, September 19, 2017 - Part 33-2439
Very easy to find the correct product for your vehicle.

David Polini
Newtown Square, Pennsylvania
Friday, September 15, 2017 - Part 33-2439
So far So good......5 stars!

Edward Newkirk
Athens, Alabama
Friday, August 18, 2017 - Part 33-2439
Love K&N Filters. My car give me an extra 2-3 mileages per gallon in highway and the power is gladly increased.

Carlos Gomez-Medina
Erie, Pennsylvania
Sunday, August 6, 2017 - Part 33-2439
Well, the previous reviews were reviewing the 2010 Chevy equinox. Mine is exactly the same as the previous comment, only a GMC terrain. I am not new to K&N filters. I had a 2007 Pontiac vibe GT, four-cylinder 6 speed, which I installed a cold air intake K&N. Some systems I looked at the filter sat right on top of the engine. That is not cold air intake. I did find a system where the filter hung in front of the drivers side tire. I could not believe the difference in performance. When I sold the car, the buyer said he would not normally buy a four cylinder, however the car did not run like a four-cylinder. I just happen to run into him at the dealership after I trade the car in, so I told him, let me show you why this car runs like it does. I warned him, not to let anybody replace that filter because it was reusable. Now I have one in my Harley, and I am getting ready to order one for my GMC Terrain. I think they are the best filters in the world. Also, I run the K&N oil filter on my Harley... I will not change brands!

Con Gubser
Monday, July 24, 2017 - Part 33-2439
I have been a long-term user of K&N Filters. Retired from our local Chevrolet dealer Lofton Chevrolet, I have had several trade opportunities for my personal vehicles. I always chose K&N quality and performance. SRC

Steve Cole
Henderson, Tennessee