(Used) 2023 Peterbilt 579, FRONT LEAF SPRING HANGER- Material: Aluminum, Make: PACCAR, Model: B11-1034, REV H, Part Number: B11-1033, 04088CA, PM 31`, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921