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K&N 33-2129 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   192 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 33-2129 Air Filter fits some Cadillac Escalade, Chevrolet Avalanche, Chevrolet Avalanche 1500, Chevrolet Silverado 1500, Chevrolet Silverado 1500 Classic, Chevrolet Silverado 2500, Chevrolet Silverado 3500, Chevrolet Suburban, Chevrolet Suburban 1500, Chevrolet Suburban 2500, Chevrolet Tahoe, GMC Sierra, GMC Sierra 1500, GMC Sierra 1500 Classic, GMC Sierra 2500, GMC Yukon, GMC Yukon XL, and GMC Yukon XL 1500 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
Height1.188 in (30 mm)
Outside Length12.438 in (316 mm)
Outside Width9.813 in (249 mm)
Package Contents1 Air Filter
Package Quantity1
Product StylePanel Air Filter
Weight1.8 lb (0.8 kg)
Filter Re-Oiling Amount1.85 oz (55 ml)
Product Box Height17.81 in (452 mm)
Product Box Length11.06 in (281 mm)
Product Box Width1.88 in (48 mm)

K&N 33-2129 Air Filter Product Reviews

Monday, March 12, 2018 - Part 33-2129
Impressed with the delivery, and of the packaging, replacement filter came in a plastic wrap protecting it from more foreign debris and the rubber seal came prelubed and it fit with out issue. The only thing i noticed is that the K&N filter is about 1/3 the thickness of the OEM filter so if thats normal we are all good to go, now to put my Avalanche thru the paces and a couple tanks of gas and see if it changes anything, the real test will be when i pull the trailer in the summer thru the British Columbia mountain passes to Saskatchewan, see if the milage changes from a previous trip.

Gary Dunkinson
Delta, Canada
Friday, March 9, 2018 - Part 33-2129
Great product, thanks.

Krom, Darryl
Hanover, Pennsylvania
Friday, March 2, 2018 - Part 33-2129
Very fast shipping on the order, exactly what I was ordering.

James Muste
Manton, Michigan
Wednesday, January 24, 2018 - Part 33-2129
I have used these filters in all our vehicles since 1990. They are great.

James Cahalan
Nokomis, Florida
Friday, January 19, 2018 - Part 33-2129
I dropped this replacment air filter in and noticed an improvement in fuel economy and throttle response from day one. Even though the truck is a V-6 it now gets about 4 mpg better on the highway and 2-3 city. The throttle response is pretty noticeable as well, can't wait to put a trailer behind it again. Highly recommend this filter.

Timothy Donihue
Las Cruces, New Mexico
Thursday, January 4, 2018 - Part 33-2129
My over all experience with the K&N website was awesome. The air filter I ordered was delivered on time. The air filter installation was very simple and I am using it now. I must say that I have been using your air filters for years now and have been very satisfied with your products. Regards, Steve S

Steve Sileo
Orlando, Florida
Tuesday, November 28, 2017 - Part 33-2129
Had upgraded my last truck with a K&N air filter and loved it. So it was one of the first things I put into my truck. Thanks for making a great product. Easy install.

Sarah Pawlak
Las Vegas, Nevada