Description
The K&N Filters RU-5123 Universal Air Filter is engineered for diverse applications, including racing vehicles, radio-controlled cars, generators, snowmobiles, and tractors. This filter showcases a robust design that accommodates various air intake angles and offset diameters, making it a versatile choice for many setups.
This air filter is constructed with ultra-strong molded pliable rubber flanges that absorb vibration, allowing for secure attachment. The flanges can be stretched up to 1/16 of an inch (1.5mm) to fit in-between sizes, ensuring a snug fit for different installations. Additionally, the K&N RU-5123 is washable and reusable, providing an eco-friendly option for air filtration. Its design allows for easy maintenance, ensuring that users can keep their filter in optimal condition for extended periods.
Features
- Constructed with ultra-strong molded pliable rubber flanges
- Flanges can be stretched for fitting in-between sizes
- Washable and reusable design
- Suitable for various applications including racing vehicles and generators
Frequently Asked Questions
What is the K&N Filters RU-5123 made of?
The filter features ultra-strong molded pliable rubber flanges.
Can the K&N Filters RU-5123 be reused?
Yes, this air filter is washable and reusable.
What types of applications can this air filter be used for?
It is designed for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, and tractors.
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.













