Description

The product is a vintage AC RC40 Radiator Cap designed for 4-cylinder vehicles from 1982 to 1985, specifically Buick, Chevy, Oldsmobile, and Pontiac models like the Fiero and Lumina. This radiator cap is a genuine part with manufacturer part numbers RC40 and 6410941, suitable for older vehicles in need of a replacement cap to maintain proper engine cooling. The cap is designed to fit the specified vehicles and provide the necessary functionality for the engine cooling system.