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Replacing park/turn and sidemarker lamp bulbs (aerodynamic)
1. Make sure that the headlamps are off, then open the hood.
2. Remove the bolts from the top, side and bottom of the headlamp
assembly.
3. Pull the assembly straight out.
4. Remove the bulb assembly,
sidemarker or park/turn bulb by
turning it counterclockwise and
pulling it straight out.
5. Pull the old bulb out from the
socket.
Install the new bulb(s) in reverse order.
Replacing headlamp bulbs (sealed beam)
1. Make sure that the headlamps are off, then open the hood.
2. Remove the three screws and one
bolt from the top and bottom of the
park lamp/bezel assembly.
3. Remove the four screws and the
headlamp retaining ring from
headlamp.
4. Disconnect the electrical
connector from the headlamp.
Install the new bulb(s) in reverse order.
Lights
116
2010 F-250/350/450/550 (f23)
Owners Guide, 1st Printing
USA (fus)