Depending on the year of manufacture, the mounting points may differ.

Front bumper

 

-open the hood.

-pull out the pistons and remove the engine protection.

-from the bottom side, we Unscrew the screws and pull out the pistons that attach the lower part of the bumper.

-Unscrew the screws in the wheel arches that attach the undercarriage.

-Unscrew two screws on each side that attach the corners of the bumper to the fenders.

-release the retainers opposite the radiator and under the headlights.

-with an assistant, we pull the bumper forward (look for the wires).

-disconnect the connectors from the fog lights.

Front bumper mounting diagram for Lincoln Navigator (2003-2006)

Front bumper mounting diagram for Lincoln Navigator (2003-2006)

Front bumper mounting diagram for Lincoln Navigator (2003-2006)

Front bumper mounting diagram for Lincoln Navigator (2003-2006)

Front bumper mounting diagram for Lincoln Navigator (2003-2006)

 

Rear bumper

 

-open the trunk lid.

-in the opening of the trunk, we pull out two pistons and remove the lining.

-under the cover, we Unscrew the screws and pull out the pistons that attach the upper part.

-Unscrew the screws in the wheel arches.

-from the bottom side, we Unscrew the screws, pull out the pistons.

-Unscrew the nuts on the bottom side, which attach the sides to the wings.

-disconnect the electrical equipment connectors (if any).

-with an assistant, we pull the bumper back.

Rear bumper mounting diagram for Lincoln Navigator (2003-2006)

Rear bumper mounting diagram for Lincoln Navigator (2003-2006)

Rear bumper mounting diagram for Lincoln Navigator (2003-2006)

Rear bumper mounting diagram for Lincoln Navigator (2003-2006)

Rear bumper mounting diagram for Lincoln Navigator (2003-2006)

 

How to remove the front and rear bumper Lincoln Navigator (1998-2002) 

How to remove the front and rear bumper Lincoln Navigator (2007-2017)