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K&N 33-2135 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   37 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 Amount3.28 oz (97 ml)
Height1.625 in (41 mm)
Outside Length12.5 in (318 mm)
Outside Width9.875 in (251 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height15.06 in (383 mm)
Product Box Length11.06 in (281 mm)
Product Box Width2.34 in (60 mm)
Product StylePanel Air Filter
Weight2.2 lb (1 kg)

K&N 33-2135 Air Filter Product Reviews

Monday, March 20, 2017 - Part 33-2135
Product is great.

Thomas Probasco
Lu Verne, Iowa
Wednesday, March 1, 2017 - Part 33-2135
Improved fuel mileage from 15.5mpg to 17mpg consistently over 2 tanks of fuel. Regular air filter cost $40 caught this one on sale for $60 and never need to replace, only clean. Highly recommend

James Koehl
Portsmouth, Virginia
Friday, October 7, 2016 - Part 33-2135
I bought this truck used, equipped with a K&N cold air filter and performance exhaust. I have always used a performance exhaust but this was my first experience with the cold air solution combined. The performance is impressive but my ears ring and the oscillation ring frequency was too much for me. Having used K&N filters on all my vehicle stock air intakes for years I know that there is a K&N alternative. I went back to a stock intake filter system using this stock replacement filter. I cannot feel any decrease in performance and the oscillation is gone.

Pat Sylvester
Phoenix, Arizona
Tuesday, August 30, 2016 - Part 33-2135
Great filter. Delivery time was faster than most online purchases.

Eric Petrie
Gardnerville, Nevada
Thursday, August 18, 2016 - Part 33-2135
I like it.

Robert M Young
Sevierville, Tennessee
Wednesday, August 17, 2016 - Part 33-2135
I think it's great, but I should have investigated this more since I really wanted a total system which would have included a K&N filter, a box for improved air flow and a plastic coupler that joins the box to the intake.

Frank Garcia
Riverside, California
Tuesday, August 16, 2016 - Part 33-2135
I recommend this item to anyone who needs to improve the performance of their vehicle.

Randall Owens
Stone Mountain, Georgia