This is the stock Motorcraft upper radiator hose which runs from the top of the radiator to the water neck on your 1986-93 5.0L V8.
One one the most common sources of coolant leaks are your Mustang's radiator and heater hoses. These hoses allow coolant to enter and leave the radiator and heater core to both cool the engine, and to heat the interior of the vehicle. Over time these hoses can get hard and brittle and can crack or break. Give the hoses a feel. Hoses should not be excessively hard, brittle, soft, mushy, or swollen.
If they are, be sure to replace them as soon as you can with high quality OE and reproduction hoses from Latemodel Restoration Supply.
Ford Motor Company Genuine Parts, Motorcraft® Parts and Ford and Motorcraft Remanufactured Parts are all excellent choices when it comes to performance, longevity and value for your Mustang or SVT Lightning. And they’re all backed by a Ford Motor Company limited parts warranty*, so you know their parts you use are going to perform like they should. Put the same parts on your Lighting & Mustang that came from the factory! Shop LatemodelRestoration.com for Motorcraft oil, oil filters, friction modifier, spark plugs, and many other replacement maintenance items!