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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   125 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 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

Monday, August 8, 2016 - Part 33-2129
Shipping was fast and came as described. I can't say how it has improved performance as I have not noticed much difference.

Ben Bradley
Jacksonville, Florida
Friday, August 5, 2016 - Part 33-2129
Great product, fast delivery, and great service.

Brian Grubb
Linwood, North Carolina
Friday, August 5, 2016 - Part 33-2129
After more than a week of use, I haven't noticed any horse power increase. Do get me wrong, it still runs great. Thanks

Mark Pabst
Dubuque, Iowa
Friday, August 5, 2016 - Part 33-2129
It's great having this filter back in my truck. Stock ones don't suck, but they do. Love my K&N

Robert Mockensturm
Toledo, Kentucky
Wednesday, August 3, 2016 - Part 33-2129
I have K&N filters in all my vehicles. I trust their reliability and performance.

Greg Schmid
Guerneville, California
Tuesday, July 26, 2016 - Part 33-2129
Notice a change in engine performance right away. better pick up when starting off. and better response on highway when pull out to pass.

Larry Rowe
Abington, Massachusetts
Saturday, July 23, 2016 - Part 33-2129
Added air flow, gives a great sound and performance upgrade.

Chris Birkman
Sanborn, New York