Older Harley-Davidson engines - Crankshafts

S&S crankpins for Harley-Davidson Ironhead Sportster














S&S crankpins for Harley-Davidson Ironhead Sportster

The crankpin is one of the most highly stressed parts in the engine, it also causes the most damage if it fails, and requires a complete strip down and rebuild to replace it. Not surprisingly we won't cut any corners with the quality of this component. The S&S crankpin also comes supplied with new heat treated nuts, and we have this reliable part in oversizes to suit the rod bearings and race sizing method that we choose to use when rebuilding the connecting rods. We have both the 57-80 and 81-85 versions available.

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