Enhance your engine performance with the K&N Clamp-On Crankcase Filter—ideal for racing applications, classic cars, and vintage carbureted engines. This vent filter is engineered to provide proper crankcase ventilation, reducing harmful gas and moisture buildup while maintaining optimal engine performance and longevity.

Key Features

• 1-1/8 inches tall, 1-3/8 inches O.D. with a 3/4 inch flange
• K&N black rubber top paired with a durable rubber base
• Constructed with washable and reusable non-woven synthetic filter media
• Clamp-on design compatible with both metal and plastic tubing for a secure fit

Performance Benefits

This high-flow vent filter not only boosts your engine’s efficiency during high-performance racing but also extends engine life by effectively managing crankcase gases. Its reusable design simplifies maintenance and is cost-effective, ensuring your vehicle performs at its peak.

Important Installation & Legal Information

Please note that this product is legal in California only for racing vehicles, and it may not be used, registered, or licensed for highway use. For CARB status verification, visit knfilters.com.

Discover additional filter options in our Filters collection.