4-Gauge Firewall Bushing: PACK OF 3
General Description: firewall bushing is a three piece design; the threaded shaft loads through the firewall, a rounded cap screws on from one side and a nut from the other. A must for professional installs a watertight seal is created as the ends are tightened. Your wire will be protected from metal jagged edges and moisture. Cut-Out Diameter: 0.88" Shaft Length: 1.275" Inner Hole Diameter For Wire: 0.5"