E-3720 Image

Replacement Filters > Custom Air Filter

 List Price: $84.32
Your Price: $56.99

You Save 32.4%

Find a Local K&N Dealer


       

E-3720
 
In Stock & Ready to Ship!
 Free Ground Shipping!


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®
Available Information
E-3720 Cross Reference
E-3720 Vehicle Applications


Part E-3720 Product Specifications
Product Style: Round Air Filter
Height: 2.75 in (70 mm)
Inner Wire: No
Inside Diameter: 11.75 in (298 mm)
Outside Diameter: 13.5 in (343 mm)
Top Style: Open
Top Material/Finish: None
Air Filter Shape: Round
Filter Material: Cotton Gauze
Flanges: None
Package Contents: 1 Air Filter
Package Quantity: 1
Filter Re-Oiling Amount: 1.46 oz (43 ml)
Weight: 2 lb (0.9 kg)
Product Box Length: 14.13 in (359 mm)
Product Box Width: 4.38 in (111 mm)
Product Box Height: 14.25 in (362 mm)



Customer Feedback      Be the first to review part E-3720

Recently fitted one of your air filters to my Nissan GU Patrol, an immediate and notable difference was realized, a lot less pedal to get the vehicle moving and keep it moving, better power and economy, will pay for itself in no time, great product K&N.
Steve Haynes, Australia
2012 Nissan Frontier Pro 4X 4.0L. It is very loud at high rpm. It did add hp and tq from about 3500 rpm to red line. About 4500 rpm to red line it is louder than my dual exhaust. I would suggest this to anyone. I'm looking at getting one for my wife. Very good cold air intake.
Jeremiah, Bismarck, North Dakota
Superior product! Got this for my 2003 Nissan Frontier with the KA24DE 2.4L I4 engine. Shipping was good, came in about a week from ordering. Installation was super-basic, no special tools or anything but the best thing was the performance gain. I could feel noticiable gain to both torque and HP. I believe this product will stand up to the Million Mile Warranty!
Jarrod, Madera, California