Jims Crankcase Bushings

16 products — part of all Crankcase Bushings

Jims crankcase bushings give Harley-Davidson engine builders the precision bearing surfaces needed to support the crankshaft and camshaft assemblies within the engine cases. The crankcase bushings control the lateral and rotational movement of these core components — worn or incorrectly sized bushings introduce play that affects engine balance, accelerates bearing wear and can cause catastrophic internal failure if left unchecked. Jims machine their crankcase bushings to exacting tolerances, with each bushing sized to deliver the correct interference fit and internal diameter for the specific application, whether that is a period Shovelhead or a modern Evolution Big Twin. Correct installation requires proper pressing and finishing tools, which Jims also supply alongside their bushings to support professional engine builders and home enthusiasts rebuilding to the highest standard. Iron City Motorcycles, an authorised Harley-Davidson dealer in Leeds, carries the Jims crankcase bushing range alongside a comprehensive selection of engine rebuilding components. Browse the full Jims Crankcase Bushings range below.