RZT50 - Weak RH Transmission, need part numbers/links.

johnny1234 · May 2, 2020

Just finished fixing up an RZT 50(kohler model, '06 I think) I picked up recently and after finally mowing the yard today the RH transmission lost most of its power after about 20-30 minutes.

There are several videos out there about rebuilding them and it seems the fix is replacing that center section because of wear. However, I'm having issues finding part numbers for that center section, the 'rebuild kit' of gaskets/seals/etc, and a new fan blade for the same side since mine is missing all its fins. Figured I'd ask here first and then call hydrogear on Monday if needed.

johnny1234 · May 13, 2020

Bump, still needing info/part numbers. Push mowing has been a real drag these last few weeks.

johnny1234 · May 20, 2020

Just noticed a very slow leak from that problematic transmission. Can't find the part numbers for the center piece I need to replace and the 'rebuild kit' that has all the new seals/gaskets in it. Plenty of threads about this transmission acting up but no one ever mentioned the part numbers.

tomplum · May 20, 2020

Hydrogear is generally on top of things. No luck there? Numbers make the world go around. The chassis number may get you to an IPL that is correct or go through hydro gear. Maybe it doesn't work well due to fluid loss. Some have bulletins regarding leakage. Numbers.