This Mack DM 600 and R 600 1982 to 1990 53 - 1/2 inch fiberglass hood is a practical and durable solution for your truck. Made of fiberglass, it is 53 - 1/2 inches long and fits most Mack DM 600 and Mack R 600 1982 to 1990 models, as well as most Mack RD686 and RD688 STE 1982 and newer with air aftercooler in front of the radiator. Sold individually, this hood is a reliable replacement for your truck's damaged or worn-out hood.