There are different choke types for MTD 243cc. Please check the product image details carefully before ordering. For Troy-Bilt Storm 2665 XP Snow Blower 31AM5CP3766, for Storm 2690 XP Snowblower 31AM5CR3711 with 675-WU 675-WUA 675-WUB Engine etc. Compatible w/ Huayi 175SC Carb Assembly Kit for MTD Powermore 6HP 6.5HP engine. OEM 951-05444 651-05444 for Cub Cadet 2x26 243 cc engine. 19 mm carb, 43mm center to center mounting holes. The kit includs 1x carburetor assy, mounting gaskets and 1x fuel hose. Basically comaptible with Huayi Deni175sc for Cub Cadet 31AM5CVS710 snow blower please verify your engine's model and part numbers before purchasing the parts you need