View 0 Photos View 0 Videos 2016 Peterbilt 579 Heater / AC Temp Control, Part # Q21-6032-2341 $345 USD (USED) Peterbilt 579 Ref# Q21-6032-2341 FAN STRENGTH KNOB, TEMP CONTROL KNOB, FAN MODE KNOB, RECIRCULATE BUTTON, AUTO BUTTON, DEFROST BUTTON, MAX DEFROST BUTTON, BUNKER OVERRIDE BUTTON. ConditionUsedFits To Make(s)PeterbiltFits To Model(s)579Part NumberQ21-6032-2341Stock Number25830766 MLS Number13719472CategoryHeater / AC Climate Control Parts Last Updated3/26/2026 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info