View 2 Photos View 0 Videos 2018 Peterbilt 337 Charge Air Cooler (ATAAC) $795 USD GOOD USED COOLING PACK ASSY, ALLISON TRANSMISSION, Engine Make: PACCAR, Engine Model: PX-7 ConditionUsedFits To Make(s)PeterbiltFits To Model(s)337Will Fit Year(s)2018Stock Number41726-3 MLS Number14370891CategoryIntercoolers & Charge Air Coolers Last Updated5/15/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info