S&S, 99-06 crankcase assembly, 4-1/8" bore. Polished

With S&S cylinder stud pattern. Replacement crankcases for Touring and Dyna Twin Cam engines. Offered is greater overall strength than OEM cases; especially in the front motor mount; which is an important consideration in high performance applications. CNC machined from high strength heat treated aluminum castings make these S&S cases much more cost effective than billet cases. A Timkenr style sprocket shaft bearing is used to best withstand the most demanding applications. All oil passages between crankcase and gear cover are o-ring sealed. Includes roller bearings for camshaft and pinion shaft and a Timken sprocket shaft bearing. The large cam chest allows a cam lift up to .675" without clearancing. Clearanced for strokes up to 5". Cases are compatible with stock components like oil pump; cam support plate; gear cover etc. Cases include hardware and installation instructions. Note: Includes camshafts; pinion and sprocket shaft bearings. Note: Installation of the T124 engine in a 99-05 Dyna chassis requires a oil line installation kit which is no longer available. This kit included a special transmission top cover and oil lines. Custom fabrication is required. Note: Installation of the T124 engine in a 99-06 Touring chassis requires 902299 oil line installation kit. The stock transmission cover can be re-used. Note: Crankcases for the Softail engine; with internal balancers; is not available. Note: In any and all applications the technician must be able to judge