S&S Crankcase - 4.125" Bore w/Stock Bolt Pattern - Wrinkle Black - Dyna

The S&S Crankcase builds a strong, reliable bottom end for stock or high-performance engines. It is made from 356 t-6 aluminum.

Fits 2006-2017 Harley-Davidson Dyna models. Check the fitment chart below to confirm your exact year and model.

• 4.125" bore crankcase can be used as a foundation for a custom engine or replacement for T111, T124, or T143
• Stock looking, but stronger; thicker wall sections and superior 356-T6 aircraft grade aluminum
• Tough powder coat finishes
• Reinforced front motor mount for extra strength
• Timken® sprocket shaft bearing – Strong enough for the most demanding applications
• Clearanced for strokes up to 4-3/16" and cams up to 0.720" lift
• Includes pinion and Timken® bearing
• Manufacturer's Statement of Origin (MSO) included
• Includes studs and cam bearings installed
• Crankcases are specially machined for the new S&S oil line installation kits sold separately
• Made in the USA
• Requires oil supply line installation kit.