The retainers mount the heater box to the firewall. Great addition to any 57 Chevy.
57 Chevy Heater Box Retainers 1957 Chevrolet New
57 Chevy Heater Control Valve Block-Off Kit 1957 Chevrolet New
57 Chevy Heater Hose Bracket Original Style 1957 Chevrolet New
1957 CHEVY HEATER BOX HARDWARE KIT , NEW
57 Chevy Deluxe Heater Control Valve 1957 Chevrolet New
57 Chevy Deluxe Heater Control Cables Stainless Steel 1957 Chevrolet New
