This is a GENUINE Original equipment (OE) Sterter bendix drive. Do not fall for imitations that will come apart and ruin your flywheel, electrics, engine cases etc. leaving you dead in the water. Fits Kawasaki 650, 750, 800, 900, 1100 Yamaha 650, 701, 800, 1100, 1200 Sea Doo 951 All Polaris 2 - stroke PWC. Please email with questions before ordering.