This brand new left headlamp base fits OEM part numbers 1396937, 1439349, 1862946, 1396936, 1439348 and 1862945. It is an essential truck body spare part for mounting the left headlight unit. Built with robust durable material, it offers solid structural strength and great anti-corrosion performance. It effectively stabilizes the headlamp against bumpy road vibration. Fully compliant with factory standards, it is a reliable aftermarket replacement part.