The location of the suspension air compressor on a Lincoln Navigator varies slightly depending on the model year. However, it's generally found
underneath the vehicle, near the rear passenger side. It's often tucked up fairly high and might be somewhat difficult to spot without getting under the car. You'll likely need to look near the rear suspension components.
To be certain, consult your Navigator's owner's manual. It will have a diagram showing the location of all major components, including the air compressor.
