31-4020 Pinion shaft bushing. Std size

This S&S pinion shaft bushing is a standard-size bronze component designed for the cam cover of mid-century Big Twins. It serves as a direct replacement for OEM 25582-54A and fits 1954 to early 1973 Big Twin models, covering the late Panhead and early Shovelhead years. The use of high-grade bronze ensures a long-wearing surface that can handle the rotational speeds of the pinion shaft while maintaining critical oil clearances. Proper installation is key, and this bushing is designed to be used with standard professional installer and removal tools. Whether you are fixing a leaky cam cover or performing a full engine rebuild, this S&S bushing provides the reliability and precision fit that vintage Harley-Davidson enthusiasts demand.