Upgrade your engine's performance with the 4X90 4X90A Carburetor, designed specifically for CUB Cadet, MTD, and TROY-BILT 547cc engine models. This high-quality carburetor is a direct replacement for MTD 993-00170 and 993-00170A part numbers, ensuring a perfect fit and reliable operation. Compatible with a wide range of engines, including MTD 4X90HU, 4X90H0, 4X90HUA, 4X90HW, TROY-BILT 4X90HU, 4X90HUA, and CUB CADET 4X90HU, 4X90HUA, this carburetor is also specifically designed to fit CUB CADET XT1-LT42 Tractor (2015) and 13W8A1CS010 (2016) models. Precision-engineered to meet or exceed OEM specifications, this carburetor provides a long-lasting and reliable solution for your engine needs. The easy installation process ensures that you can get your equipment up and running in no time, with no additional modifications required. Trust our 4X90 4X90A Carburetor to deliver the performance and reliability you need for your CUB Cadet, MTD, and TROY-BILT engines. Upgrade today and experience the difference!