JD 4320 compact. I have the low heat problem when the tractor idles. I replaced my water pump about 7-8 years ago with the std replacement. Didn't realize/know that they make a high volume water pump. It has like a 2.62 dia impeller versus the 2.0?? maybe. If I ever replace it again i will put in the high volume pump. If anybody changes out there water pump you need new bolts because they are they torque turn setup. Later.
John Deere 4052R Cab,, Deere 855D UTV, Z920A Zero Turn Mower and assorted implements
Got a great chance to use the cab heat today...blowing about 12" of powdery snow.
Heat works fine! In fact, since I was wearing insulated coveralls, I had to turn it down.
I hope the AC works as well!