I have a 2001 JD 4300 that I bought about 3 yrs ago. The hour meter stopped working about 2 yrs ago. I’ve tried the $250 non-OEM clusters but couldn’t get the glass seal to work without using my OEM glass and seal but then the glass would hit the gauge arms. I wasn’t going to pay $600+ for an OEM cluster just for the hour meter. I removed the cluster and opened it up. On the hour meter there was a white sticker with T1101AB2 229/01. I separated the circuit boards and had a closer look at the hour meter. I identified via the internet that it is an hour meter manufactured by ENM - T1101AB2. I found a replacement unit at Allied Electronics for $20 with $6 shipping. The meter has 4 solid wires labeled P, N, I, and R. Best I have determined P=positive, N=negative, I=input, and R=reset. I hooked up some jumper wires and 12-volt power source to the new unit and made it work (positive to P and I and negative to N and nothing on R). So, I tried the jumper wires to my old meter (the wires are exposed at the top of the white plastic spacer) and it didn’t work. So, I un-soldered my old unit and used the original white plastic spacer and soldered the new unit in. It has been working for 20 hours without any problems. I think it is fixed for $26. Hopefully it will last for a few yrs. You can run up the hours on the meter to match the hours on your tractor by just leaving the unit hooked up to a 12v batter prior to installing. Mine would have taken over 2 months so I just matched the hours since my last oil change (only 10 hrs).
