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This is what we were able to determine right at the end of the day yesterday. Still trying to source a re-build kit for them. The local parker pump place is trying to see if they can source one, and if nothing else, maybe rebuild it for me.

From what I can tell from jacks small engine Jacks small engine it looks like all use the same pump 539132146 for the right side and 539132145 for the left across all years. Does this sound right to anyone?

So I picked up a Black Bear ZTR with the Kawasaki motor. Got it home and the right stick was a bit lazier than the left, had quite the oil mess by the lines and tank, days later went to the carwash to clean it and trace the leak and the right side just died. I finally got the pump pulled and...

All we managed to get done this weekend was get he hind end jacked up. Decided it was too cold to mess with it. lol Hopefully next weekend we'll be more motivated. I'll make sure to check the linkages over, but the more I research it, the more I'm convinced the pump is dead. With it being weaker...

Yeah I think that is the plan for this weekend. Took all the info I could find off the mower to our local mower parts house, and they wanted the specific numbers off the pump, but assured me they should have re-build kits for them. So I think we'll pull it and take it in with us next weekend...

I haven't been able to determine the year yet, but it's the black bear with the Kawasaki motor. I'll try to find how to pin the year down. We've checked the pully and belt, it seems fine, the other pump is running fine off the same belt. But when we looked at it we failed to verify the shaft...

So I realized a dream and stumbled upon a deal for a dixon ztr black bear 34" commercial grade mower. Bought it drug it home and had to fight with the safeties on it, to get it to move again (not an issue during test drive) and used it to shuffle trailers around the yard and totally murdered...