(Used) 2023 Peterbilt 579, BATTERY GUARD RELAY- Make: Intellitec, Model: Big Boy Battery Guard, Type: Ignition Protected, Part Number: 00-00507-012, 33421 SH, Coil: 12 VDC Nom, 10.5 VDC Min, Cont Curr: 200 A Max, Intermit. Curr: 1200 A, 30 Secs Max, For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921