* Ford Ranger: This is arguably the most common application. Many years and trims of the Ranger used this engine.
* Ford Explorer: Used in earlier generations of the Explorer.
* Ford Mountaineer: This SUV, closely related to the Explorer, also used the 4.0L SOHC.
* Mazda Navajo: The Mazda Navajo is essentially a rebadged Ford Explorer, so it shared the engine.
It's important to note that the exact years of application vary by model and region. To be absolutely certain whether a specific year and model of these vehicles used the 4.0L SOHC, you'd need to consult a parts catalog or vehicle specification guide for that particular vehicle.