908143 Pinion shaft bushing. std size

Restoring a classic 45-inch Flathead requires parts that respect the original engineering. This bronze pinion shaft bushing is an OEM-style replacement for the cam cover, specifically designed for 1937 through 1973 45-inch Flathead models. It replaces OEM part 25593-37 and comes in a standard size to ensure your cam timing and shaft alignment remain within factory specs. For a clean and professional installation, we suggest using the JIMS 978283 tool to press this bushing into place. It is a small but essential part of keeping these legendary side-valve engines humming along for another generation of riders.