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K&N RU-2590

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   5 Customer Reviews
List Price: $67.77
Your Price: USD $46.99

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RU-2590
 
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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]
  • 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
  • Not legal for highway use in states adopting California emission regulations
  • One year limited warranty

Product Specifications

Air Filter Large End Diameter5.375 in (137 mm)
Air Filter ShapeRound Tapered
Base Outside Diameter5.375 in (137 mm)
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.24 oz (37 ml)
Flange Inside Diameter4 in (102 mm)
Flange Length0.625 in (16 mm)
Flange TypeCentered
Flanges1
Height7 in (178 mm)
Inner WireNo
Package Contents1 Air Filter
Package Quantity1
Product Box Height11 in (279 mm)
Product Box Length6.38 in (162 mm)
Product Box Width6.38 in (162 mm)
Product StyleRound Tapered Universal Air Filter
Top Material/FinishNone
Top Outside Diameter4.375 in (111 mm)
Top StyleRubber
Weight1.4 lb (0.6 kg)

Product Reviews

April 15, 2015 - Part RU-2590
A quality filter. Fits good, looks good, works good.

Don
New Jersey
January 29, 2015 - Part RU-2590
This is a replacement for my original K&N filter. The original one is approximately 2 1/2 longer, making for a very tight fit in the space required. This replacement has more wiggle room, something I wanted. Thank you very much K&N!! Mahalo.

Mike
Hawaii
January 12, 2015 - Part RU-2590
Aloha from Hawaii. This RU-2590 is a replacement for the one which is in my '97 dodge Dakota. Original one that came with the K&N cold air system is 8 3/4 long, it just barely fits in the assigned location, very tight. So, this one is 6 long, should fit with ease. Both are cone type with a 4 opening to fit the cold air intake. I've had the original one for over 14 Years...Nothing wrong with it, just wanted to have a shorter one so I don't have to struggle every time I service the filter. I service the filter twice a Year. Mahalo

Mike
Hawaii
May 12, 2014 - Part RU-2590
Great filter, sounds great on the car .

Chris Cook
Wisconsin
December 27, 2013 - Part RU-2590
I have been using your RU-2590 universal filter on a 2000 Ford F-350 with the 7.3L diesel for many years. It seemed small for the application but it has worked fine. I am getting over 20 MPG (with other mods. also)so it's size has not restricted air flow. Diesel filters do require much more frequent cleaning than advertised - in my experience every 3,000 miles or monthly, especially if I have driven through rain. The rain washes the oil (and dirt) from the filter right into the intake and the turbocharger. I have been able to minimize this somewhat by using drychargers for the last 3 or 4 years. They do stop fines from entering into the filter element somewhat. During a recent replacement of glow plugs and a turbo rebuild at 370,649 miles, no wear was apparent within the turbocharger. I have used a 1 micron bypass filter and [brand] synthetic additive (2 oz./QT of oil every 30,000 miles) since approximately 11,000 miles so this has apparently contributed to the low or minimal wear (the magnetic drain plug is almost clean at oil changes). The only other thing I have noticed is that after 2+ years or 20 or so filter cleanings the rubber flange of the filters shrink a bit, become harder and will no longer fit on the 4 intake. I think I read K & N recommends +/- 25 cleanings before replacement anyway though.

Dean Phelps
Ohio