Briggs & Stratton 126M02-1006-F1 vertical 6.75 Gross Torque engine is 190cc and has a 7/8″ x 1-13/16″ crankshaft (3/8-24 tapped) with a WK keyway. This model comes equipped with a side oil drain. It will not work for some log splitters. Briggs & Stratton 6.75 Gross Torque engines are designed to be environmentally-friendly, meeting EPA Phase 3 emissions standards, and feature a Super Lo-Tone muffler for quieter operation. Buyer protection package provides two-year limited consumer engine warranty. 50-State CARB Compliant. All engines purchased from us ship for free and are foam packed for added protection during transit.