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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   164 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.

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Product Specifications

Air Filter ShapePanel
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.85 oz (55 ml)
Height1.188 in (30 mm)
Outside Length12.438 in (316 mm)
Outside Width9.813 in (249 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height17.81 in (452 mm)
Product Box Length11.06 in (281 mm)
Product Box Width1.88 in (48 mm)
Product StylePanel Air Filter
Weight1.8 lb (0.8 kg)

K&N 33-2129 Air Filter Product Reviews

Friday, April 21, 2017 - Part 33-2129
The entire process from purchase, delivery and installation was very fast and easy. I've been a long time K&N user and their products are great.

Speros Doumas
San Clemente, California
Friday, April 21, 2017 - Part 33-2129
The filter is excellent and I recommend it and will repeat the purchase again.

Khaled Qaisi
Alkhari, Saudi Arabia
Wednesday, April 19, 2017 - Part 33-2129
Great filter. Improved gas mileage on the first tank full and I can tell a difference in the pick up and go.

Tom Gollick Sr
Thompsontown, Pennsylvania
Tuesday, April 18, 2017 - Part 33-2129
This is my 3rd truck that I have used K&N filters on. The air filter always helps boost my mpg. It don't get any better than this.

Jerry Bankston
Elgin, Texas
Tuesday, April 18, 2017 - Part 33-2129

Thomas Budinich
Holtsville, New York
Monday, April 17, 2017 - Part 33-2129
Noticed a little difference for the better in acceleration. Gas mileage stayed about the same. Wish I could have afforded a whole cold air intake system for my 4.3L V6, but for the price, this flat replacement filter is fine.

Nick Wordell
Tiverton, Rhode Island
Monday, April 17, 2017 - Part 33-2129
Fits like a dream.

James Hays
Norco, California