S&S Cycle Generator Style Crankcase Natural - 31-0008

Item # : 209005

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  • Manufacturer: S and S Cycle


S&S Cycle Generator Style Crankcase Natural


  • Stock bore
  • 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
  • Pre-clearanced for strokes up to and including 5in.
  • All cases are designed for late style generator (2 brush type) with 5/16in. mounting bolts to eliminate early generator cradle/mounting strap bosses for simplicity and economics
  • Use more readily available 1/4in.-20 thread fasteners to mount gearcover, 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
  • Note: All S&S crankcases use Timken style sprocket shaft bearing and 1958 and later pinion bearing. These cases will not accept stock 1957 and earlier flywheel assemblies.
  • 36-69 style oil pump Machined for 48-62 Panhead cylinder base oil feed Machined for 55-64 tin primary

Manufacturer Part Number: 31-0008

Installation Instructions (6.45 MB)