Marine Starter - 4, 6 and 8 Cylinder GM Engines, Delco Style 

Clockwise Rotation, Fits 6 & 8 cylinder engines with 14-1/4" flywheel and offset bolt pattern. 12-volt, full-size direct drive inboard starter motor designed for marine engines, including Mercruiser, OMC, and Volvo Penta, typically used in models prior to 1994. Replaces Sierra 18-5905 and Arco 30140.