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K&N 33-2139 5.0 out of 5 stars 4 Customer Reviews
Replacement Filters > Replacement Air Filter

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33-2139
 
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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 virtually every vehicle 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 Replacement Air Filters]
  • 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®


Product Specifications 
Air Filter Shape:Panel
Filter Material:Cotton Gauze
Filter Re-Oiling Amount:1.84 oz (55 ml)
Height:0.875 in (22 mm)
Inner Wire:No
Outside Length:11.375 in (289 mm)
Outside Width:9.688 in (246 mm)
Package Contents:1 Air Filter
Package Quantity:1
Part Number:33-2139
Product Box Height:11.56 in (294 mm)
Product Box Length:10.44 in (265 mm)
Product Box Width:1.75 in (44 mm)
Product Style:Panel Air Filter
Top Style:Open
Weight:1.4 lb (0.6 kg)


Product Reviews      Review part 33-2139

 Have used K&N filters for over 35 years now. My '91 Grand Cherokee 4.0 has run well with this filter, have cleaned it once in 105K miles and gives me about 21.5MPG on the open road at 65-70mph. Many trips from Santa Barbara to the Redding area have shown it to be consistent. Best bang for the $$ for this vehicle.
Jan J., Santa Barbara California
 I have used K&N filters in all of my vehicles for the past ten years. Performance does increase slightly off the line but highway cruising at 65-75 gets me 21-23 average mpg out of the 4.0L and a little more kick when the throttle is pressed. I have never noticed any dirtier oil or experienced premature wear using these filters.
Rob Taylor, California
 Could feel the difference soon as I started my(02 WJ). I really feel the power on acceleration. This is one of the best investments you can make to your vehicle. Thank you K&N for a great product !!
Shango, Detroit, Michigan
 Great, reliable product for my Jeep.
Ryan, Philadelphia