This power lift was on my MF 12 hydro when I bought the tractor. This is the first one I had seen, I have since seen one more on a MF12 at an auction. Here is a picture mounted on the tractor.It worked great until last winter. At that time I took the cap off the motor and resoldered a brush wire and it worked. A few months later I was using it and smoke came out of the motor. I took the motor off and took it apart. Here are some pictures;Here is a picture of the prestolite tag.The end of the motor is machined with a flat spot to go into a oil pump gear.There are 6 screws around the edge of the housing and 4 bolts to hold it together.Here is underneath the cover, oil pump and to the right of the pump is one of the check valves There are 2 small check balls also.