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RU-4950
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K&N RU-4950 Universal Rubber Filter

Universal Air Filters > Universal Rubber Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   4 Customer Reviews
  • Designed to increase horsepower and acceleration
  • Hundreds of sizes and shapes for most applications
  • High air flow with excellent filtration
  • Clamp-on washable and reusable air filter
  • Malleable flanges
  • One year limited warranty
K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K&N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16" (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable.

[More Information on Universal Air Filters]

Product Specifications

Air Filter Large End Diameter6 in (152 mm)
Air Filter ShapeRound Tapered
Base Outside Diameter6 in (152 mm)
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.06 oz (31 ml)
Flange Inside Diameter2.5 in (64 mm)
Flange Length2 in (51 mm)
Flange TypeCentered
Flanges1
Height5.5 in (140 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height7.75 in (197 mm)
Product Box Length6.81 in (173 mm)
Product Box Width6.81 in (173 mm)
Product StyleRound Tapered Universal Air Filter
Top Material/FinishNone
Top Outside Diameter5 in (127 mm)
Top StyleRubber
Weight1.3 lb (0.6 kg)

K&N RU-4950 Universal Rubber Filter Product Reviews

Thursday, October 13, 2016 - Part RU-4950
I have a 2002 Mazda Protege5. I bought it used and it had a K&N air filter on it. I bought this extra filter so I could have a spare. I can clean the dirty one while not having any vehicle downtime. This air filter was a perfect fit to replace the K&N filter that was installed in my car. It is exactly 2-1/2 inches and the fit was so good that I really didn't need a clamp (I did use one, though). I definitely noticed an increase in engine performance after the installation of this air filter.

John Pinkosky
Bloomington, Minnesota
Thursday, March 12, 2015 - Part RU-4950
Does it's job very well for Lancer diesel 2.0 . I am not sure about the power gain but it feels faster though it sounds a bit loud to me. Can replace the stoke filters. I would recommend on an intake pipe for a further performance gain.

Mathew
Bangalore
Monday, March 10, 2014 - Part RU-4950
Bought this with a short ram pipe from Ebay! Great hood space from removing stock box. Awesome!

Erfan
Tennessee
Sunday, January 5, 2014 - Part RU-4950
The filter was just what my Honda needed, the shipping was free & I had it in three days. Superb!!!

Willy
Keene, New Hampshire