* Year Range: Engines from approximately 1988-1997 are the most likely candidates. However, even within that range, there can be subtle differences.
* Specific Differences: Don't just focus on the year; you need to confirm the engine code. Different engine codes (found on a tag on the engine itself) may have different sensors, accessories, or internal components. A direct swap with the same engine code is ideal.
* Computer Compatibility: The engine's computer (ECU) is crucial. Using an engine from a significantly different year may require significant wiring changes or even a complete ECU swap, which can be complex. Ideally, the ECU should come with the engine.
* Other Components: You'll also need to consider compatibility of the intake manifold, exhaust manifolds, and other accessories. While the core engine might fit, these parts might not be interchangeable without modification.
In short: While a 4.0L Cologne V6 from another year *might* work, finding one with the *exact same engine code* is the best approach to avoid complications. Checking for engine codes before attempting a swap is absolutely critical. Use online resources like Ford parts websites (though they may require VIN lookup) or online forums specializing in Ford Rangers to find more detailed compatibility information.
