S&S Cycle 06-17 Dyna Models w/ 4-1/8in Bore Stock Bolt Pattern Crankcase - 310-0856

This 4 1/8 in. bore wrinkle black crankcase is specially machined for the new S&S oil line installation kit for 2006-2017 Harley-Davidson® Dyna® models. Stock looking, but stronger - Thicker wall sections and superior 356-T6 aircraft grade aluminum.