View 0 Photos View 0 Videos 2004 Peterbilt 378 Fuse Box $848 USD (USED) Peterbilt 378 Engine : C12 Transmission: RTLO12913A MOUNTS TO FIREWALL, DOES NOT INCLUDE WIRING ConditionUsedFits To Make(s)PeterbiltFits To Model(s)378Stock Number25933074 MLS Number14123209CategoryFuse Boxes & Panels Last Updated3/13/2026 LocationWinimac, IN, US Sold ByVander Haag's Inc. (855) 370-___ SHOWNUMBERCall Seller Email Seller Save More Info