Briggs & Stratton 190cc 675 Series Ready-Start Push Mower Engine with 7/8-Inch x 3-5/32-Inch Length Crankshaft 126L02-1615-F1 Aluminum alloy bore for cooler operation Maintenance-free Magnetron electronic ignition for quick, dependable starts Mechanical compression release for smooth, quick starting Emission compliant for sale in all 50-states. Non-CARB Compliant/Not For Sale In California