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K&N High-Flow Original Lifetime Universal Clamp-On Air Filter: High Performance, Premium, Washable: Flange Diameter: 4.5 In, Filter Height: 6 In, Flange Length: 0.625 In, Shape: Round Tapered, RU-4740

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$51.99

$ 25 .99 $25.99

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About this item

  • ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance
  • 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants
  • RUGGED CONSTRUCTION: K&N Universal Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime
  • CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average miles driven per year of 15,000 miles)
  • EASY INSTALLATION: K&N Air Filters are pre-oiled and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains
  • UNIVERSAL FITMENT: Designed for use on a variety of applications
  • REDUCES WASTE: Over 200 million disposable air filters and their packaging waste wind up in landfills each year- reusable filters help reduce waste in our landfills
  • NO-HASSLE WARRANTY: 1-Year Limited Warranty
  • MADE IN USA: K&N Air Filters are proudly made in the USA for trusted quality & reliability


K&N Universal Clamp-on Air Filters are manufactured for a wide variety of applications and unique filtration needs. K&N performance High-Flow Air Filters are engineered to improve engine performance by increasing airflow. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle. These versatile filters are constructed with ultra-strong molded pliable rubber flanges that absorb vibration and allow for secure attachment. Available in round, tapered (cone-style), and oval designs, K&N offers thousands of clamp-on filters in a multitude of shapes and sizes that cater to many precise applications. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.


Kevin JOhnson
Reviewed in the United States on September 21, 2024
Perfect fit for my truck
Steve
Reviewed in the United States on June 27, 2024
EASY AND HIGHLY EFFICTIVE
Brian Ramage
Reviewed in Canada on March 8, 2024
Fits application.A LITTLE SMALLER THAN WHAT IT REPLACES.
Customer
Reviewed in the United States on October 17, 2024
It's K&N. Just a good quality part. Nothing else to say.
Ivan Serra fandos
Reviewed in Spain on October 14, 2024
Pedi el filtro K&N y me llego antes de lo que ponia de plazo,muy buena calidad y muy bonito,la calidad se nota en el motor!!
Cory
Reviewed in the United States on June 10, 2023
Well Rouch doesn’t make the part anymore, or it’s hard to find, Just measured intake, bought generic filter that fits. k&n intakes are always great add on to a car.
Chantal P
Reviewed in Canada on January 26, 2022
aucun
David
Reviewed in the United States on July 8, 2021
I need it for my whale intake and it fit. The quality looks good
Eddie
Reviewed in the United States on March 17, 2016
I've been running a Perrin foam filter in my Evo for some years now but it rested on the chassis causing it to flatten on one side. Got this one and the top still rests a bit but the construction is a lot sturdier and tapers in instead of the fat foam filter so works a lot better. Tight fit with a shortened Samco tube and stock MAF on an ACD Evo but it will do. Once it starts to fall apart I will get a shorter one but I'm sure it will last many years/miles.
RonnieM36
Reviewed in the United States on August 6, 2013
I tried searching all over for a new air filter for my CAI the filter was old and deformed. I couldn't find a good matching product number on my old filter, only numbers they had were F045A6 on the base near the clamp and B050A6 at the top. After hours or searching online I came across this filter. I read the dimensions on the description and took out a measuring tape and measured the dimensions on my old filter. They seemed close enough so I bought this air filter and when it arrived it was a PERFECT match. I don't know if you guys are also looking for another air filter and are having trouble finding one because you don't have a good product number, but if the numbers are F045A6 at the base and B050A6 at the top, take out a measuring tape and confirm dimensions, this may be the filter for you and its cheaper here on Amazon!
ricky144
Reviewed in the United States on April 10, 2013
i received one of these from Walsh RaceCraft, Bought a Pro's old Ltr450 race quad and they had it mounted on their intake kit... This is the biggest filter you can put on a LTR450, it is maybe just over a finger width from the exhaust pipe...its big!! Anyways i messed one filter in a crash and couldnt for the life of me find this filter.. Thankfully i could find the real part number and buy in for pretty cheap on Amazon. Definitely buying some more of these
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