3in id Pre-Cleaner

The 3in ID Pre-Cleaner by K&N Engineering is an essential maintenance component designed to extend the service life of your engine's air filtration system. This compact pre-filter assembly mounts directly upstream of your primary air filter, capturing larger dust particles and road debris before they reach your main filter element. Whether you're running modified intakes, performance carburetors, or fuel-injected builds, a pre-cleaner reduces the frequency of filter replacements and maintains consistent airflow to your engine.

The design features a 3-inch inner diameter opening that accommodates standard filter necks on most automotive applications, using K&N's proven cyclonic separation principle to spin incoming air and force heavier contaminants outward before they enter the main filter media. Its compact 6 x 3.45 x 7.2 inch footprint makes it suitable for tight engine bay configurations, while the lightweight construction adds negligible weight penalty. The pre-cleaner's housing is engineered to withstand engine heat and vibration, making it a durable solution for both street and off-road environments where dust ingestion is a concern.

Mechanics and enthusiasts benefit most from this pre-cleaner when building or maintaining high-performance vehicles in dusty conditions—desert racing, unpaved terrain, and dry climates see dramatic filter life extension. The 3in ID sizing makes this unit compatible with K&N's modular intake systems and most aftermarket applications, ensuring versatility and performance enhancement.