S & S Cycle 31-0008 Generator Style Crankcase

Designed with a stock-like appearance. In spite of the stock appearance, these cases incorporate updated design features that improve overall engine strength and reliability.

• Stock bore
• Pre-clearance for strokes up to and including 5 in.
• All cases are designed for late style generator, two brush type with 5/16 in. mounting bolts to eliminate early generator cradle/mounting strap bosses for simplicity and economics
• Use more readily available 1/4 in.-20 thread fasteners to mount gear cover, oil pump, tappet guides, timer and timer advance bracket, except KN Series

• Timken sprocket shaft main bearing, in all years, instead of stock-straight roller bearings; resulting in better flywheel assembly stability, placement and longer engine life
• Kits include crankcase assembly, all required bearings and hardware for installation and assembly instructions
• Made in USA