A-B1691054-AI FLYWHEELOne New Aftermarket Replacement Flywheel Fits Briggs and Stratton (Fits Briggs & Fits Stratton) Small Engines This aftermarket replacement flywheel Fits Briggs and Stratton V Twin Intek and Platinum OHV small engines used in riding lawn mowers and lawn tractors. The flywheel stores rotational energy to keep the engine running smoothly, reduces vibration, and maintains proper ignition timing for reliable starting and consistent engine performance.