🚗 Elevate Your Ride with K&N—Performance Meets Sustainability!
The K&N High-Flow Original Lifetime Universal Clamp-On Air Filter (RU-4740) is engineered to enhance engine performance by increasing horsepower and acceleration. With a durable design that lasts a lifetime and requires cleaning only every 75,000 miles, this eco-friendly filter is a smart investment for any vehicle enthusiast. Proudly made in the USA, it offers easy installation and a no-hassle warranty.
| Brand | K&N |
| Product Dimensions | 4.5"L x 4.5"W x 6"H |
| OEM Part Number | RU-4740 |
| Global Trade Identification Number | 00024844102119 |
| Shape | Round |
| Manufacturer | K&N Engineering |
| UPC | 400770084505 024844102119 |
| Model | Universal Clamp-On Air Filter |
| Item Weight | 1 pounds |
| Country of Origin | USA |
| Item model number | RU-4740 |
| Is Discontinued By Manufacturer | No |
| Exterior | Other |
| Manufacturer Part Number | RU-4740 |
| Position | Left |
A**R
Great
It's K&N. Just a good quality part. Nothing else to say.
S**E
K&N QUALITY FILTER
EASY AND HIGHLY EFFICTIVE
K**N
Air filter
Perfect fit for my truck
E**E
Evo 9
I've been running a Perrin foam filter in my Evo for some years now but it rested on the chassis causing it to flatten on one side. Got this one and the top still rests a bit but the construction is a lot sturdier and tapers in instead of the fat foam filter so works a lot better. Tight fit with a shortened Samco tube and stock MAF on an ACD Evo but it will do. Once it starts to fall apart I will get a shorter one but I'm sure it will last many years/miles.
C**Y
Needed new air filter for a Rouch intake
Well Rouch doesn’t make the part anymore, or it’s hard to find, Just measured intake, bought generic filter that fits. k&n intakes are always great add on to a car.
R**6
Prefect replacement for my Densecharger CAI air filter
I tried searching all over for a new air filter for my CAI the filter was old and deformed. I couldn't find a good matching product number on my old filter, only numbers they had were F045A6 on the base near the clamp and B050A6 at the top. After hours or searching online I came across this filter. I read the dimensions on the description and took out a measuring tape and measured the dimensions on my old filter. They seemed close enough so I bought this air filter and when it arrived it was a PERFECT match. I don't know if you guys are also looking for another air filter and are having trouble finding one because you don't have a good product number, but if the numbers are F045A6 at the base and B050A6 at the top, take out a measuring tape and confirm dimensions, this may be the filter for you and its cheaper here on Amazon!
D**D
Good product
I need it for my whale intake and it fit. The quality looks good
R**4
Big/great filter
i received one of these from Walsh RaceCraft, Bought a Pro's old Ltr450 race quad and they had it mounted on their intake kit... This is the biggest filter you can put on a LTR450, it is maybe just over a finger width from the exhaust pipe...its big!! Anyways i messed one filter in a crash and couldnt for the life of me find this filter.. Thankfully i could find the real part number and buy in for pretty cheap on Amazon. Definitely buying some more of these
Trustpilot
2 months ago
2 weeks ago
