This carburetor has been remanufactured to show quality. If you demand the best for your Farmall, then this carburetor is for you. The carburetor features the following. This is an original IH casting. This is what you want if you are serious about show. The rebuild kit used was a complete kit which included all wear parts, throttle shaft with metal stops, seals, drip filter, gaskets and all necessary hardware (bolts, springs and screws). All parts are American made. This kit is the highest quality kit available. Throttle shaft bushing replaced and/or reamed to size to assure a tight fitting and smooth operating throttle. This is absolutely one of the key steps of a quality rebuild. All jets and orifices gauged to confirm proper size or replaced as necessary. The carburetor body was media blasted to remove all rust. All external brass parts have been polished. The carburetor has been primed, painted and clear coated. Attention to paint detail is assured! The float has been pressure tested and set to factory specs 1-5/16? The #27 venturi has been polished for smooth airflow. The throttle bore has been honed. All gasket surfaces have been honed flat to remove high spots. Every thread has been chased to assure precise assembly and fitment. This part is very distinguishable from a factory part. You are not likely to find a highly detailed carburetor like this for sale elsewhere. If you want your treasured Farmall M to stand out in the crowd and bring home the blue ribbon, you must bolt on this carburetor! Hundreds of my very professionally rebuilt carburetors are on winning Farmall tractors everywhere. This carburetor will fit any 1939? 1953 Farmall M, M-V, W-6, I-6, T-6, O-6 and several other models. All 47387 and 50983 series carburetors are now rebuilt for gasoline service and there is no longer any difference between the two. They are completely interchangeable. However, it is your responsibility to assure this carburetor is correct for your application. The carburetor has been fully restored to the highest standards. All adjustments (idle speed, idle air mixture, high speed mixture) are set at the Farmall factory defaults. This carburetor may need to be adjusted to meet the operating and performance conditions of your engine. This is the exact carburetor which you will receive. Quality is self-evident and sells itself. If you want one of my carbs for your Farmall, this is your chance. Although the sale is considered final, I stand behind my work. If there is an unforeseen defect, or an issue that you are not satisfied with, contact me immediately (with a good attitude please) and we will work together to your satisfaction. If we try and the carburetor can?