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33-2129
$48.99 USD
MSRP $75.99 35.5% Off
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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   109 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

Wednesday, June 22, 2016 - Part 33-2129
User friendly website, ordering was easy, shipping was fast and filter is the best. I will be back when I can afford the whole intake system.

Joseph Dunzweiler
Tempe, Arizona
Tuesday, June 21, 2016 - Part 33-2129
Easy install. Lets see how it performs.

M Ryan
Maryland
Tuesday, June 21, 2016 - Part 33-2129
Just put it in so I really can not rate it.

Jimmy Barrett
Oak Hill, Florida
Tuesday, June 21, 2016 - Part 33-2129
Well honestly, I don't know why I waited so long to buy one. I have a round K&N air filter in my 75 Chevy and now in my Silverado. My truck runs better, stays cooler and sounds different in a good way. My next things to try are the oil filters and I didn't get my sticker yet. Thanks guys!

John Perez
San Antonio, Texas
Thursday, June 16, 2016 - Part 33-2129
The filter purchased is a direct replacement for the factoty filter housing. It fit as designed. I have only had it a few weeks, gas mileage doesn't seem to have improved, but the engine feels more responsive.

Bob Fowler
Springfield, Oregon
Wednesday, June 15, 2016 - Part 33-2129
GREAT FILTER!!

Ronald Tucker
Richmond Heights, Missouri
Friday, June 3, 2016 - Part 33-2129
I've always liked K&N filters... I'm loyal to the brand.

Christina Stiles
Camden, Arkansas