Part Type: Radiator Coolant Hose. 1999 Ford Mustang Engine: 3.8L V6; Position: Upper;. 2000 Ford Mustang Engine: 3.8L V6; Position: Upper;. 2001 Ford Mustang Engine: 3.8L V6; Position: Upper;. 2004 Ford Mustang Engine: 3.8L V6; Cut to Fit; Position: Upper;.