1999 Ford Explorer - Interference or not?

Is the ford explorer xlt 4.0l sohc v6 a NON-INTERFERENCE engine

Unfortunately, it’s not.

The Ford 4.0 SOHC is an interference engine.

The Ford 4.0 OHV is a NON interference engine

The 4.0 SOHC has three timing chains. If one has let go and you really want to keep your Explorer a remanufactured engine is your best bet.