Description
The K&N Filters RC-4381 Universal Air Filter is expertly designed for a wide range of applications, including racing vehicles, radio-controlled cars, generators, snowmobiles, and tractors. This filter stands out with its ultra-strong molded pliable rubber flanges that absorb vibration, ensuring a secure attachment while also allowing for a stretch of up to 1/16 of an inch (1.5mm) to fit in-between sizes.
Constructed for versatility, the K&N RC-4381 air filter is not only washable but also reusable, making it a practical choice for those looking to maintain performance over time. The filter’s design accommodates various angles and offset diameters of air intakes, ensuring that it can adapt to different setups. This feature makes it a valuable addition to your equipment, providing reliable air filtration when you need it most.
Features
- Constructed with ultra-strong molded pliable rubber flanges
- Flanges absorb vibration for secure attachment
- Can be stretched for up to 1/16 of an inch (1.5mm) to fit in-between sizes
- Washable and reusable design
- Designed for a wide variety of applications
Frequently Asked Questions
What is the K&N Filters RC-4381 made of?
The filter features ultra-strong molded pliable rubber flanges.
Can the K&N RC-4381 air filter be reused?
Yes, it is washable and reusable.
What applications can the K&N RC-4381 be used for?
It is designed for a wide variety of applications including racing vehicles, generators, and more.
Manuals & Instructions
âš WARNING (California Proposition 65): WARNING: Cancer and Reproductive Harm – www.p65warnings.ca.gov

Not CARB approved. This item is not legal for sale or use on pollution-controlled motor vehicles in California or states that adopt California emissions standards. Intended for off-road / competition use where permitted by law.















