NOS Kohler B-237570 mini block this was a sealed box as shown in the pictures the black straps are now missing I opened the box to take pictures, this 12 hp fits Gravely and who knows what else, box has the numbers 45225  and WT-56 Pilot written on it, This is a K301 12hp motor for a gravely as it has a gravely shipping label on it this motor comes with points, piston,  rings, rod, valves and valve springs, cam and also has gasket set and dipstick included please look at the pictures as it is part of the description i think the number B-237570 is replaced by 41-782-53  the block has K301 cast into it really do not know much about what it fits may work on a John Deere or Wheel Horse cub cadet you are buying the exact item shown will be shipped in its original box selling as is no returns or refunds