USED , BUT NICE. GM PART # 13526053 ENGINE COMPARTMENT FUSE BLOCK POSITIVE BATTERY CABLE END. PART # 5 IN DIAGRAM. THIS DOES " NOT " HAVE A BATTERY CURRENT SENSOR. BOLTS DIRECTLY TO THE FUSE BOX MASTER FUSE BAR. NO CORROSION /NO STRIPPED THREADS. I SHIP USPS MAIL , TRACKING INCLUDED.