909640 Breather screen, crankcase

This crankcase breather screen is an essential internal component for classic Harley-Davidson engines, sitting just below the breather valve to filter out debris and manage oil mist. It fits a wide range of vintage iron, including 1936 to 1947 Knuckleheads, 1948 to 1965 Panheads, and 1966 to 1969 early Shovelheads. This screen is a direct replacement for OEM number 25275-36. When you are rebuilding one of these legendary motors, ensuring the breather system is clean and functional is paramount to preventing pressure build-up and oil carry-over. These screens are sold as a set of five, making them a practical addition to any engine builder's toolkit. Using high-quality replacement screens helps maintain the original engineering standards of your classic V-twin, ensuring it continues to run smoothly and efficiently for years to come.