What size is fitting in bottom of Farmall M fuel tank?

R Weld

Member
I'm wanting to get rid of the sediment bowl in my Farmall M and replace it with an inline filter and ball valve type shutoff. Does anyone know what size the pipe thread is coming out of the bottom of the tank? Thanks
 
Your not mistaken, 3/8 female pipe thread is exactly what it is.......and most fuel tanks on other makes and model tractors are the same. 1/4 pipe thread is common on sediment bowl/shut off valve bodies and carburetor inlets.
 
Like some others said you probably have 3/8 pipe threads. Unless you happen to have a real early M that had 1/4 pipe threads.
 

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