Universal Clamp-On Fltr

The K AND N ENGINEERING Universal Clamp-On Filter (Model RC-5117) is a reusable cotton air filter element designed for engine builders, performance enthusiasts, and mechanics seeking a washable alternative to disposable paper filters. This oval-shaped filter element fits universal clamp-on mounting systems found on custom intake manifolds, cold air intakes, and non-OEM engine configurations where standard factory air boxes are removed or modified. Clamp-on filters are essential for any serious vehicle modification project because they offer superior airflow capacity and longevity compared to single-use paper elements.

This universal filter features a premium oiled cotton media construction that captures contaminants while allowing significantly more air volume to reach the engine than traditional cellulose designs. The 8.625 x 4.5 inch oval element stands 5.5 inches tall with a 4.875 inch mounting flange, engineered to handle high-CFM intake systems without restriction. K AND N's distinctive red cotton media is treated with a proprietary oil formula that creates electrostatic charge to trap dust particles while remaining washable and reusable—meaning this single filter can deliver thousands of miles of service when properly maintained. The compact 1.75 lb weight and 9.2 x 5.3 x 9.2 inch profile make it compatible with space-constrained engine bays and custom intake piping configurations.

Performance-focused mechanics and hot rod builders choose this universal filter for turbocharged, supercharged, and naturally aspirated engine builds where intake flow velocity demands a high-efficiency filtration solution. The clamp-on design works with any intake tube diameter when paired with appropriate silicone hose adapters, making it ideal for custom fuel-injected conversions, LS swaps, and non-traditional engine bay layouts. Maintenance is simple—periodic cleaning with K AND N's cleaning kit restores full filtering capacity, eliminating ongoing filter replacement costs while reducing landfill waste. This filter element serves as a cost-effective core component for any custom air intake system build or retrofit installation.