View 0 Photos View 0 Videos Used 2002 Peterbilt 378 Heater / AC Temp Control, Part # 18-04323 $431 USD (USED) Peterbilt 378 Ref# 18-04323 3 KNOBS AND 3 BUTTONS, MISSING FAN SPEED KNOB, CRACK ABOVE AC ON/OFF SWITCH ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Part Number18-04323Stock Number25979532 MLS Number14314442CategoryHeater / AC Climate Control Parts Last Updated4/16/2026 LocationSioux Falls, SD, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info