One New Aftermarket Replacement 12V Electric Starter Motor Fits Briggs and Stratton V-Twin EnginesThis 12-volt PMDD electric starter motor is a direct aftermarket replacement Fits Briggs and Stratton V-Twin engines used in riding lawn mowers and lawn tractors. It mounts to the engine block and engages the ring gear via a 16-tooth nylon drive gear to crank the engine at startup.Specifications Voltage: 12V Starter Type: PMDD Rotation: Counterclockwise (CCW) Teeth: 16 Gear Outer Diameter: 1.587 in (40.3 mm) Field Fits Case Length: 4.25 in (108 mm) Compatible ModelsFits Briggs and Stratton V-Twin Engines (14 HP, 16 HP, 18 HP): 399928, 400707, 400777, 402415, 402417, 402431, 402437, 495100, 498148, 422707Replaces Part Number(s):206-03108, 399928, 410-22010, 495100, 498148Aftermarket Interchange Numbers393017, 394674, 394674-A, 394808, 497596, 497596-A, 498148-A, 495100-A, 399928-A, 5744N, SBS0009, 7-06821, 9799, B1BR13, 126M07-5062-F1, 33-709, 33-779New aftermarket replacement part - not remanufactured, not used.