Improve the performance of your Troy-Bilt string trimmers with the Carburetor for Troy-Bilt TB575EC, TB525EC, TB539ES, and TB590EC models. This high-quality carburetor replaces MTD 753-06220 and 753-06220A, ensuring a perfect fit for your trimmers. Made of durable metal, this carburetor is designed to last and enhance the efficiency of your equipment. The package includes 1 carburetor, 1 gasket, 2 primer bulbs, 2 connectors, and 1 fuel line, providing you with all the essentials for a seamless replacement. This carburetor is compatible with various Troy-Bilt trimmers and also fits specific models from Cub Cadet, Craftsman, MTD, and Yard Machines. Upgrade your trimmer's performance with this silver carburetor and experience improved functionality in your gardening tasks. Please note that due to light and display differences, the color of the item may vary slightly from the picture. Enhance the power and reliability of your trimmer with this efficient carburetor solution, available at an unbeatable price.