Think of the Crusher Street Sleeper® III Air Cleaner as a heavy-breathing wolf in sheep's clothing. This unit includes a lifetime K&N® washable and reusable filter element featuring internal breathing to eliminate the need for external hoses and fittings. The high-flow filter element is compatible with factory Harley-Davidson® air cleaner covers (shown, but not included) to maintain a stock appearance, with front-end and outer perimeter breathing for a significant boost in airflow. Includes lifetime-warrantied K&N filter element.

• Includes lifetime-warrantied K&N filter element
• Compatible with stock '99-up oval air cleaner covers, as well as '14-up rounded Touring covers
• Internal breathing eliminates external hoses and fittings
• Front-end and outer perimeter breathing for drastic increase in airflow over stock
• Also compatible with Crusher Maverick Air Cleaner Trim (P/N 9238 satin black/9239 chrome) and Kuryakyn Quantum Air Cleaner Cover (P/N 4901578 Chrome, 4901577 Gloss Black), sold separately
• Perfect for both professionals and enthusiasts