View 6 Photos View 0 Videos 2006 Peterbilt 378 Radiator $565 USD S21K0056 - Used Radiator Assembly off of a 2006 Peterbilt 378, Engine - Cummins ISX, Material - All Metal, Row - 3, Height 36 1/4 Inches, Width 33 1/4 Inches, Depth 2 Inches,... ConditionUsedEngine ModelCummins ISXFits To Make(s)PETERBILTFits To Model(s)378Stock Number2131249 MLS Number11330825CategoryRadiators Last Updated8/23/2025 LocationSpokane Valley, WA, US Sold ByLKQ Heavy Truck (855) 905-___ SHOWNUMBERCall Seller Email Seller Save More Info