The Dayco 71687 Radiator Coolant Hose is a high-quality, genuine part designed for direct replacement in vehicles. Made of EPDM material in black color, this single I.D. hose has an end 2 inside diameter of 1 7/32 inches and an item length of 15 inches. It comes with a manufacturer part number of 71687 and interchangeable part numbers such as Gates 22871 and Ford F3LY-8A593-A. This coolant hose is free from core charge and meets SAE specifications for durability and performance in engine cooling systems.