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The K&N Universal Clamp-On Air Filter (RU-5040) is a premium, washable, and reusable high-flow filter engineered to increase engine airflow by up to 50%, enhancing power and acceleration. Featuring a universal clamp-on design with a 3.5-inch flange diameter and durable oval tapered shape, it offers easy installation and long-lasting performance with up to 50,000 miles between cleanings. Trusted by NASCAR and made in America, this filter saves money over disposable alternatives while reducing environmental impact.







| ASIN | B09BDD8H39 |
| Automotive Fit Type | Universal Fit |
| Brand | K&N |
| Brand Name | K&N |
| Customer Reviews | 4.7 out of 5 stars 19 Reviews |
| Fit Type | Universal Fit |
| Fit type | Universal Fit |
| Included Components | Air Filter^Hose Clamp |
| Item Dimensions L x W x H | 21.3L x 21.1W x 21.8H centimeters |
| Item Type Name | Universal Clamp-On Air Filter |
| Manufacturer | K&N Engineering, Inc. |
| Manufacturer Part Number | RU-5040 |
| Model Number | RU-5040 |
| Number of Items | 1 |
| OEM Equivalent Part Number | RU-5040 |
| OEM part number | RU-5040 |
| Product Grade | Replacement Part |
| Product dimensions | 21.3L x 21.1W x 21.8H centimeters |
| Product grade | Replacement Part |
| Shape | Round |
| UPC | 024844386199 |
| Unit Count | 1 Count |
J**Y
2013 BMW N55 f10
Work perfectly fine for me. 2013 BMW N55 f10
G**R
Sucks in the right way.
Changed my life. It sucks so much air I can barely keep my socks on. 10/10 would recommend.
L**N
Good product
Works perfect, good price..
C**Z
Good stuff
Does the job I used it to replace a worn filter from a K&N cold air intake kit I have on my 2001 dakota
J**Y
Fits 2002 Durango 4.7 K&N intake kit
I like that it does not have a chrome end cap. The original one started to rust after many years. The sound is great! Reminds me of a carburetor.
Trustpilot
4 days ago
2 months ago