I just replaced my Coleman thermostat to a Coleman digital unit. The thermostat can be ordered through Camping World special order department, (800) 622-6264 and shipped direct to you by Coleman. Cost was $66.00 plus a few pennies. The replacement unit has six wire leads and they connect to the six leads existing in the RV wall. Same color code and uses wire nuts from the original unit. Go online to Coleman site and pull up thermostats. You will have several displayed, but will easily identify the features you need and the correct thermostat. The dealer is simply "incorrect" in his pricing. Takes all of ten minutes to change out, if you are drinking coffee!