K&N RF-1048

Universal Air Filters > Universal Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.8 out of 5 stars   8 Customer Reviews
List Price: $81.24
Your Price: USD $54.99

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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

Available Information

Product Specifications

Air Filter Large End Diameter7.5 in (191 mm)
Air Filter ShapeRound Tapered
Base Outside Diameter7.5 in (191 mm)
Filter MaterialCotton Gauze
Filter Re-Oiling Amount1.27 oz (38 ml)
Flange Inside Diameter6 in (152 mm)
Flange Length0.625 in (16 mm)
Flange TypeCentered
Height6 in (152 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height8.6 in (218 mm)
Product Box Length8.4 in (213 mm)
Product Box Width8.3 in (211 mm)
Product StyleRound Tapered Universal Air Filter
Top Material/FinishChrome
Top Outside Diameter4.5 in (114 mm)
Top StyleMetal
Weight1.4 lb (0.6 kg)

Product Reviews

See all reviews!
Review part RF-1048
Tuesday, September 08, 2015 - Part RF-1048
The K&N cold air intake kit is great on my 2005 Ford Explorer. I ordered the kit about 2 years ago. I pull a heavy trailer. The explorer is barely big enough to pull it. Installing this kit is a BIG help in letting the engine breathe. It sounds great and makes me feel better too, putting this load on my car. The installation was straight forward and the instructions were excellent. The installation was no problem. Only 2 minor issues. The airflow sensor mounting pad had a casting lap that deformed the mounting surface. I was able to smooth it out with a sharp knife and light sanding. The other issue was that I mounted the filter such that it was riding hard on the bottom of the intake box. This was my fault. I didn't find out until I took the filter off to clean and re-oil it and found a very small worn spot on the filter. When I install this new filter I will make sure that the filter is free from interference all around. Thanks for a great product I'll be using K&N from here on out.

Phil Kirby
Friday, May 22, 2015 - Part RF-1048
This is my second filter, the first has 200,000 miles on it with proper cleaning and maintenance. These filers will last a good amount of time. But I have to say once replaced my truck acts like it's brand new, I can tell you this this fiilter is worth every penny. Do yourself a favor and get one.

Paul Massie
Monday, May 11, 2015 - Part RF-1048
Fast shipping.

Bruce Love
Columbus, GA
Wednesday, May 06, 2015 - Part RF-1048
Kind of difficult to find what filter was needed for my intake, but overall am very happy with the performance and glad I had no problem installing it.

gerald Vasquez
United States
Wednesday, May 14, 2014 - Part RF-1048

Tuesday, April 08, 2014 - Part RF-1048
Fast delivery.

Monday, November 18, 2013 - Part RF-1048
I own a 2003 Mountaineer and this was the best investment I made.

Hempstead, New York