You'll find this exact *same* engine (with very minor variations possibly only in accessories) in very few other Ford vehicles. It's primarily found in:
* Ford Explorer (1991-1994): This is the most likely candidate for a direct swap. Year-to-year differences might require minor adjustments to wiring harnesses or accessories.
* Mercury Mountaineer (1991-1994): The Mountaineer is essentially a rebadged Explorer, so engine compatibility is the same.
Important Note: While other Ford trucks and SUVs used 4.0L V6 engines, almost all of them were *SOHC*, not DOHC. Trying to fit a DOHC engine into a vehicle designed for a SOHC engine will require extensive modifications, likely including:
* Different engine mounts: The engine block itself may have different mounting points.
* Wiring harness and computer: The entire electrical system will be incompatible.
* Transmission compatibility: While the transmission *might* bolt up, the computer control systems will be incompatible.
* Exhaust system: The exhaust manifolds will almost certainly be different.
In short, your best bet for a relatively straightforward swap is another 1991-1994 Ford Explorer or Mercury Mountaineer. Any other application would be a very significant undertaking.
