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Universal Air Filters > Universal Rubber Filter

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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 ShapeOval Straight
Base Outside Length4.5 in (114 mm)
Base Outside Width3.75 in (95 mm)
Filter MaterialCotton Gauze
Filter Re-Oiling Amount0.28 oz (8 ml)
Flange Inside Diameter2.438 in (62 mm)
Flange Length0.625 in (16 mm)
Flange TypeCentered
Flanges1
Footnote 1Base Has 1-1/8" Vent
Height2.75 in (70 mm)
Inner WireNo
Package Contents1 Air Filter
Package Quantity1
Product Box Height4.25 in (108 mm)
Product Box Length4.63 in (117 mm)
Product Box Width4.63 in (117 mm)
Product StyleOval Tapered Universal Air Filter
Top Material/FinishNone
Top Outside Length3.5 in (89 mm)
Top Outside Width2.5 in (64 mm)
Top StyleRubber
Weight0.6 lb (0.3 kg)


Customer Feedback


I installed my first K&N filter in 1975 while I was the manager at Small Car Accessories, a high performance VW shop in Sunnyvale CA. At the time I ran these filters on both of my Corvair powered VW's, a '58 Single Cab pickup, which I still drive, and a '71 bug. They worked really well on the street, giving me an extra mile or two per gallon with pretty much 'filter-less' performance, and worked especially well in the shop's sand rail. Other filters would pack it in when running the dunes at Pismo and until the K&N's came along, you carried a couple of extra filters. The K&N's not only kept the sand out, but did well when packed with sand. A quick stop and a quick tap or two and they were ready to go again. Because they flowed air so well and were so easy to clean. We sold a lot of them to our off-roading customers, and they loved them. At the time, RURA racers ran their buggies and Bajas at a track near the old Fremont Drag Strip where they used them for their performance value and reusability. These days I run a K&N filter in my '99 Ranger, where I picked up just over 1 mpg with just the filter change. I still use a K&N in my old Single Cab, which since 1981 has sported a 351 Ford Windsor engine and Ford drive train (over 60,000 miles). My '82 Yamaha 650 Seca still has the K&N air filter I installed at the first filter change over 52,000 miles back. There is also a K&N on my Café style Iron Head Sporty (48,000 miles), my wife's modified 750 Virago (two pod style filters), my '05 Triumph Tiger (added three HP on the dyno) and the '97 GS500 Suzuki I recently saved from the back of a neighbor's yard. I'm taking the time to write this because the K&N filter is a product which is truly as excellent as the manufacture claims. Besides the maximum star rating I also give K&N filter a 'two thumbs up.'
Kim Crumb, Forestville, California
I had a 2007 Kawasaki Vulcan 900 belt drive. I replaced standard pulleys for improved top speed and less vibrations but lost some noticeable torque. I then installed a K&N filter and frankly I could not believe the difference it made. Revved much harder, sounded better and improved my acceleration noticeably and regained any lost torque. I don't know if petrol consumption improved because I tended to go harder though I didn't notice any drop in MPG. Now got a Triumph Tiger 955i with K&N and it goes really well.

I'd recommend this to any bike owner. I'm now thinking of putting one in my 4x4 cause its heavy on fuel. FWIW.
Bob, Sydney, Australia
I read in a few forums that some folks have had fitment issues with this product. I installed this on a base model 2012 Triumph Bonneville, and it seemed to have fit fine, although I can only speak for this trim specifically. So far the filter seems to be working okay, but I have a hard time feeling a noticeable difference in power, but I don't go to WOT too often where a change like an air filter would be most noticeable. Since my company's only motorcycle dynamometer is in 130 rusting pieces in a parking lot, if anyone out there has any dyno results with both the [brand] and the stock air filter, I would love to see them. As far as dealing with K&N goes - I am perfectly happy. The product did what it said it would do, it shipped on time, and arrived in the mail quickly.
Peter, San Antonio, Texas