The MTD 73204329A is a genuine OEM extension spring designed for various MTD, Cub Cadet, Troy-Bilt, and other related brand lawn mowers and outdoor power equipment. This durable spring ensures proper tension and functionality in components such as deck lift mechanisms, chute controls, or throttle linkages, providing reliable operation and extending the lifespan of your machinery. Always refer to your equipment's parts manual for exact fitment.