This is the small L shaped bypass hose that installs between the top of the water pump and the small fitting on the thermostat housing. Correct white lettered Autolite markings. Hose diameter ends 3/4 and 5/8. Fits the various Ford and Mercury models listed below.Ford Applications:1969-1995 Ford Mustang - 302/351W engine1984-1993 Ford Mustang - 2.3L engine1969-1979 Ford Truck - 302/351W engineMercury Applications:1979-1986 Mercury Capri -5.0L 302 engine1984-1986 Mercury Capri - 2.3L engine.
