Here's a link where you can download the install book for that kit.
the relay info for your tractor is on page #10
just click the below link, then the "click here to download" in the yellow box
air heater.pdf
I just ordered this kit. My 5303 uses the same kit with the exact same part number. Should be here in 3-5 days. At that time, I will do an install write up with photos.Anyone put the "Air Intake Heater Kit" on thier 5525 (or like tractor?)
If so how hard is it to install???