Starter motor drive assembly kit designed to be compatible with Briggs and Stratton engines with the following model numbers: 696539, 495878, 495877, 490467, 396865, 490421, 393254, 28A707-0121-01, 28A707-0122-01, 28A707-0122-02, 28A707-0135-01, 28A707-0136-01, 28A707-0138-99, 28A707-0526-99, 28A707-0604-A1, 28A707-0616-99, 28A707-0625-A1, 28B702-0001-01, 28B702-0001-02, 28B702-0102-01, 28B702-0124-01, 28B702-0134-01, 28B702-0610-A1, 28B702-0633-A1, and 28B702-1001-E1.