This wiring harness was removed from a Wheel Horse 520H when it was re-powered with a different engine. I believe it may be part number NN10553. It has a 9-pin connector where it plugs into the tractor harness. It looks to be in good condition except for a couple minor issues. A terminal has been cut off one of the wires. And it appears as though the red wire was cut & re-routed around the 9-pin connector with a butt splice. Additional close-up photos of the harness showing these issues are available upon request.
I also have a dash light module from a Wheel Horse 520H. I believe this is part number 79-2130. It's in good used condition and includes the mounting hardware (not pictured). I tested this by connecting pin #12 to ground and applying +12V to pin #3 (the IGN terminal). When first powered up, all of the LED lights turn on (with the "oil" indicator one blinking) and then they all turn off after a few seconds.
NOTE: The flywheel screen shown in the first picture has been SOLD and is no longer available.
Price: $35 for both or $10 for just the harness and $25 for just the module. Available for cash payment and local pickup in Sherman. Or I can accept PayPal or postal money order and mail them to a buyer willing to cover the shipping cost.