i bought a brand new engine for my classic ford F 150 truck this water pump came on the new ATK engine from Speedway motors .. but the inlet for lower radiator hose points to the passenger side but my lower radiator hose is on driver side so i had to buy a new water pump instead of spending a lot more money and effort trying to find a different radiator.. has a little surface rust where you bolt the fan blades on from sitting on my covered front porch but thats it .. never was used on my truck. i think mustangs hose inlet is on passenger side