K&N Universal Clamp-On Air Filter (RU-4870)

K&N Universal Clamp-On Air Filter (RU-4870)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

3-1/4 inch inside diameter

4 inch inside diameter

K&N high-flow intake systems give your Harley an aggressive appearance and killer style

The K&N PreCharger® filter wrap is specially designed to extend the service interval of your K&N Filtercharger filter when used in very dusty conditions

2 1/2 Spring CLIP Add support around perimeter of filter assembly

Emissions legal in all 50 US states

K&N's Metric Cruiser Complete Intake Assemblies are designed to provide increased horsepower and performance

The RP-5103 is a clamp-on filter that has an inside flange diameter of 3 7/8 inches and a flange length of 15/16 inches

K&N universal air filters are washable and reusable

The K&N Drycharger® is a silicone treated

with tasteful scalloping

This K&N racing air filter has just two layers of cotton to provide even lower air restriction than our replacement air filter for street vehicles