Cub Cadet 7275 Charge Pump Failure Help

[XRDVER]

I am trying to help a customer with a Cub Cadet 7275 that has a completely destroyed charge pump gear. The center gear has shattered into 6 pieces and is impossible to measure to try to find some kind of substitute part that might fit. The charge pump part number appears to be a MA-19641301291 but it is out of stock everywhere and even the websites that allow you to special order end up cancelling the order due to the part being obsolete/no longer available. Does anyone know of a direct bolt on replacement for this charge pump or possibly of a gear swap that may fit the existing charge pump housing? From photos online the gears from a SU-9510405 charge pump look very similar but I was hoping that maybe someone with prior experience with this issue could confirm or give an alternate suggestion.

 

[oldnslo]

My first question or concern is where did the debris generated by that charge pump failure go? If into the HST it is potentially damaged beyond economical repair.

Second question is what caused the charge pump to fail? Two most common causes are over pressure or loss of lubrication causing outer gear ring to seize imploding the inner gear.

I believe that tractor is a rebadged Mitsubishi so might be able to find parts if you know the equivalent Mitsubishi model(s).

 

[XRDVER]

My first question or concern is where did the debris generated by that charge pump failure go? If into the HST it is potentially damaged beyond economical repair.

Second question is what caused the charge pump to fail? Two most common causes are over pressure or loss of lubrication causing outer gear ring to seize imploding the inner gear.

I believe that tractor is a rebadged Mitsubishi so might be able to find parts if you know the equivalent Mitsubishi model(s).

I have no idea if any debris has possibly damaged the HST further and I have not actually put hands on the tractor. We are actually a machine shop and the customer brought the charge pump in to see if we could manufacture a replacement inner gear. If we had access to actual drawings or an intact part we could Wire EDM a replacement but the only example we have is shattered. I feel bad for the guy and would like to help him out if possible. Thanks for the idea to try to find parts for a Mitsubishi variant.

 

[oldnslo]

Those gears are very precision items typically mated to outer gear for thickness so wish you the best in trying to find drawings to make a replacement.