Cylinder Base Gaskets

69 products

Our range of Cylinder Base Gaskets for Harley-Davidson provides the essential sealing solutions needed for reliable engine builds and rebuilds. Covering Evolution Big Twins from 1984-1999, classic Panhead models from 1948-1965 and 1966-1984 Shovelhead engines, these gaskets ensure proper compression sealing and oil control between cylinders and crankcases. Cometic leads our selection with their advanced multi-layer steel and composite designs available in standard and big bore sizes, while James Gaskets provides traditional cork-rubber options trusted by builders for decades. S&S Cycle rounds out our offerings with high-performance gaskets designed for their premium cylinder kits. Whether you are doing a top-end refresh on your Softail or a full restoration on a vintage Touring model, proper base gaskets are critical for long-term reliability. Browse the full range below.