Fresh Water pump for Universal M-12
I am replacing the water pump on my M-12. I have found that there where 2 different pumps on this model. 1 has a pump back plate to back of impeller at 3/8" and another has it at 1/2". I have taken mine off and it measures 3/8" so I know which one it is. Here is my quandry. I understand this motor was built using the Kubota Z-400 engine. I can get a water pump from a marine engine comapny at 300.00. I can get one for the Z-400 engine at about 110.00. The problem is that when i go to the tractor folks they don't know about the different pump at 1/2" vs the 3/8" and I can't tell for sure it is the right one. Anybody else had this experience and know which way to go. 190.00 is a big difference.