HIFROM TM Replace CARBURETOR for Tecumseh 631921 632284 631070A fits many H25 H30 H35 Engines 1. New Carburetor w/ Mount Gasket 2. Replaces : 631921 / 631070 / 631070A / 631074 / 631245 / 631820 / 632284 3. Fits Models: H25 / H30 / H35 / H40 4. It is the customers responsibility to make sure this is the correct item for your unit. If you are not sure please send us model and spec number of your engine and we will gladly check for you. 5. HIFROM carburtor from Professional Factory; Professional technical support; if you unsatisfy, can return no risk