Lower - Radiator To Pipe. Radiator Coolant Hose. This part generally fits Mazda vehicles and includes models such as 6 with the trims of GS Hatchback 4-Door,GS Sedan 4-Door,GT Hat chback 4-Door,GT Sedan 4-Door,i Hatchback 4-Door,i Sedan 4-Door,Mazdaspeed Sedan 4-Door.