K&N® 33-2129 - 33 Series Air Filter

K&N Performance Air Intake Systems
K&N® - 33 Series Air FilterK&N® - 33 Series Air FilterK&N® - 33 Series Air Filter Installation InstructionsK&N® - Cleaning GuideK&N® - Air Filter Overview 602x420K&N Authorized Dealer
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Product Details

33 Series Air Filter (33-2129) by K&N®. Get better performance, superior engine protection and more economical operation just by changing your air filter. The K&N air filter gives you increased airflow without sacrificing filtration ability. It's the last air filter you'll ever buy for your car.

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  • Improves engine airflow
  • Increases horsepower and acceleration
  • Superior filtration without reduced airflow
  • Reduces maintenance costs
  • Washable and reusable
  • Get up to 50,000 miles between cleanings under normal driving conditions
  • Emissions legal in all States
  • Backed by K&N's Million Mile Limited Warranty

Most air filters on the market are a compromise. Many high-performance filters deliver better airflow, but sacrifice filtering ability and engine protection in the process. OEM filters, which are usually made of paper, filter adequately but at the expense of airflow. And airflow decreases as these air filters become dirty. Not so the K&N air filter. K&N air filters increase airflow without decreasing filtration ability, and the increased airflow remains consistent throughout the filter's service interval. The secret is in the K&N filter's construction.

K&N's initial goal was to develop a filter that would deliver increased airflow during dirty, dusty off-road racing conditions. Increased airflow improves the efficiency of the combustion process, increasing horsepower and torque. But just increasing airflow without ensuring adequate filtration under those conditions would result in a ruined engine. K&N's solution was a filter design consisting of 4 to 6 layers of cotton gauze sandwiched between two aluminum wire screens. The cotton is then treated with a specially formulated grade of oil that causes tackiness throughout the cotton’s microscopic strands. The resulting K&N filter not only delivers increased airflow while trapping dirt particles that could harm your engine, that level of airflow is maintained even as the filter gets dirty. The layers of oiled cotton fibers in the K&N filter trap dirt particles that are smaller than the holes in the filter media. The thickness of the layers also allows the K&N filter to trap dirt and dust on many levels, trapping more dirt without decreasing airflow. Contrast this with a paper filter that only traps dirt on its surface; as the surface area becomes clogged, the airflow rate goes down.

Each K&N air filter is custom designed to fit into your existing factory air box. The K&N filter is economical because it's the last air filter you'll have to buy for your car. It can be washed and reused many times, and since you can usually drive up to 50,000 miles between servicing, you won't have to clean it very often. And every K&N filter is backed by K&N's Million Mile Limited Warranty. By the way, check the CARiD reviews and read what the customers think of K&N porducts.

Brand: K&N       Part Number: 33-2129       UPC: 024844053701
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K&N® is the inventor and leading innovator of reusable cotton gauze filter technology for automotive applications. The first K&N filter was conceived for racing over 40 years ago and a performance enthusiast mindset continues today throughout all levels of the company. K&N is the sales and brand leader for performance filters, including an extensive line of factory replacement filters and performance air intake kits. The company actively promotes the environmental, economical and performance advantages of long-life reusable cotton gauze filters.

Product Reviews (1)

Every Customer can leave a review about our service and the product that was purchased. In order to leave your review for your new product, please follow the link in the email you receive after completing your purchase. You can rate appearance, ease of installation, price/value and product quality.

K&N® 33-2129 - 33 Series Air Filter
K&N® - 33 Series Air Filter
Average Rating:  5  4.8 of 5
2011 GMC Sierra | Posted by | (Saint John, NB)

The K&N air filter, that I just purchased works great for my 2011 GMC Sierra crew cab.

3 people found this review helpful.
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Vehicle FitmentThis part is compatible with 95 vehicle(s)
Year Make Model Fitment Notes
2015 Chevy Tahoe
2015 GMC Yukon / Yukon XL
2014 Chevy Silverado 1500 4.3L / 5.3L
2014 Chevy Suburban
2014 Chevy Tahoe
2014 GMC Sierra 4.3L / 5.3L
2014 GMC Sierra Denali 5.3L
2014 GMC Yukon / Yukon XL 5.3L
2013 Chevy Avalanche
2013 Chevy Silverado 1500 4.3L / 4.8L / 5.3L
2013 Chevy Suburban 5.3L
2013 Chevy Tahoe 5.3L
2013 GMC Sierra 4.3L / 4.8L / 5.3L
2013 GMC Yukon / Yukon XL 5.3L
2012 Chevy Avalanche
2012 Chevy Silverado 1500 4.3L / 4.8L / 5.3L
2012 Chevy Suburban 5.3L
2012 Chevy Tahoe 5.3L
2012 GMC Sierra 4.3L / 4.8L / 5.3L
2012 GMC Yukon / Yukon XL 5.3L
2011 Chevy Avalanche
2011 Chevy Silverado 1500 4.3L / 4.8L / 5.3L
2011 Chevy Suburban 5.3L
2011 Chevy Tahoe 5.3L
2011 GMC Sierra 4.3L / 4.8L / 5.3L
2011 GMC Yukon / Yukon XL 5.3L
2010 Chevy Avalanche
2010 Chevy Silverado 4.3L / 4.8L / 5.3L
2010 Chevy Suburban 5.3L
2010 Chevy Tahoe 5.3L
2010 GMC Sierra 4.3L / 4.8L / 5.3L
2010 GMC Yukon / Yukon XL 5.3L
2009 Chevy Avalanche 5.3L
2009 Chevy Silverado 1500 4.3L / 4.8L / 5.3L
2009 Chevy Suburban 5.3L
2009 Chevy Tahoe 4.8L / 5.3L
2009 GMC Sierra 4.3L / 4.8L / 5.3L
2009 GMC Yukon 4.8L / 5.3L
2009 GMC Yukon XL 5.3L
2008 Chevy Avalanche 5.3L
2008 Chevy Silverado 1500 4.3L / 4.8L / 5.3L
2008 Chevy Suburban 5.3L
2008 Chevy Tahoe 4.8L / 5.3L
2008 GMC Sierra 4.3L / 4.8L / 5.3L
2008 GMC Yukon 4.8L / 5.3L
2008 GMC Yukon XL 5.3L
2007 Chevy Avalanche 5.3L
2007 Chevy Silverado 1500 4.3L / 4.8L / 5.3L
2007 Chevy Suburban 5.3L
2007 Chevy Tahoe
2007 GMC Sierra 4.3L / 4.8L / 5.3L
2007 GMC Yukon XL 5.3L
2006 Chevy Avalanche 1500
2006 Chevy Silverado 1500 4.3L / 4.8L / 5.3L
2006 Chevy Suburban 5.3L
2006 Chevy Tahoe
2006 GMC Sierra 4.3L / 4.8L / 5.3L
2006 GMC Yukon XL 1500
2005 Chevy Avalanche 1500
2005 Chevy Silverado 1500 4.3L / 4.8L / 5.3L
2005 Chevy Suburban 1500
2005 Chevy Tahoe
2005 GMC Sierra 4.3L / 4.8L / 5.3L
2005 GMC Yukon XL 1500
2004 Cadillac Escalade 5.3L
2004 Chevy Avalanche 1500
2004 Chevy Silverado 1500 4.3L / 4.8L / 5.3L
2004 Chevy Suburban 1500
2004 Chevy Tahoe
2004 GMC Sierra 1500
2004 GMC Yukon XL 1500
2003 Cadillac Escalade 5.3L
2003 Chevy Avalanche 1500
2003 Chevy Silverado 1500 4.3L / 4.8L / 5.3L
2003 Chevy Suburban 1500
2003 Chevy Tahoe
2003 GMC Sierra 1500
2003 GMC Yukon XL 1500
2002 Cadillac Escalade 5.3L
2002 Chevy Avalanche 1500
2002 Chevy Silverado 1500
2002 Chevy Suburban 5.3L
2002 Chevy Tahoe
2002 GMC Sierra 1500
2002 GMC Yukon XL 1500
2001 Chevy Silverado 1500
2001 Chevy Suburban 5.3L
2001 Chevy Tahoe
2001 GMC Sierra 4.3L / 4.8L / 5.3L
2001 GMC Yukon XL 1500
2000 Chevy Silverado 4.3L / 4.8L / 5.3L
2000 Chevy Suburban 5.3L
2000 Chevy Tahoe 4.8L / 5.3L
2000 GMC Sierra 4.3L / 4.8L / 5.3L
2000 GMC Yukon XL 1500
1999 Chevy Silverado 4.3L / 4.8L / 5.3L
1999 GMC Sierra 4.3L / 4.8L / 5.3L
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Product Reviews (1)
Product Reviews (1)
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