1964 - 1973 Mustang Radiator Cap with Sacrificial Anode

Keeps the corrosive agent in your coolant from destroying vital engine components

This is a patented, scientifically tested radiator cap with a magnesium sacrificial anode attached to the bottom of the radiator cap that hangs down into the coolant. The anode is designed to attract and absorb the electrical energy that causes electrolysis and the magnesium is consumed instead of the aluminium components in the cooling system, thereby reducing repair and maintenance costs.