Manufactuer: S&S Cycle

S&S Cycle Part Number: 106-4043A

This crankcase is intended to replace the crankcases in HD^? Twin Cam 88? engines in existing HD? chassis only. S&S stock style crankcases have a rear motor mount that bolts directly to the stock 1999-'06 transmission for all models except 2006 HD^? Dyna?. These crankcases are compatible with the stock primary, charging system, and other stock components. S&S replacement crankcases are not available for HD^? Twin Cam 88B? or 2007-'16 HD^? Twin Cam 96? or HD^? Twin Cam 96B? engines. Stock bore cases are perfect for replacement applications, 4" bore cases are a natural for use with the S&S Super Sidewinder? Hot Set Up Kits?, and 41/8" bore cases make really large displacement custom engines possible, and are available with the S&S cylinder stud pattern or with the stock cylinder stud pattern. 41/8" bore cases with stock stud pattern are ideal for the S&S 124" Hot Set Up Kit? for stock crankcases.