1. Make sure the headlamps are off.
2. Remove the screws and lamp
assembly from the vehicle as wiring
permits.
3. Remove the bulb socket by rotating it counterclockwise.
4. Pull the bulb straight out of the socket.
5. Install the new bulb in reverse order.
Replacing the License Plate Lamp
Bulb
Note: The license plate bulbs are located
behind the rear bumper. 1. Reach behind the rear bumper to
locate the bulb.
2. Twist the bulb socket counterclockwise
and carefully pull to remove it from the
lamp assembly.
3. Pull out the old bulb from the socket and push in the new bulb.
4. Install the new bulb in reverse order.
BULB SPECIFICATION CHART
Replacement bulbs are specified in the
chart below. Headlamp bulbs must be
marked with an authorized “D.O.T.” for
North America and an “E” for Europe to
ensure lamp performance, light brightness
and pattern and safe visibility. The correct
bulbs will not damage the lamp assembly
or void the lamp assembly warranty and
will provide quality bulb illumination time. Trade name
Number of Bulbs
Function
H13/9008
2
*Headlamps
W5W
2
*Side marker lamp - front
3157NA
2
*Park/Turn lamp- front
3157
2
Tail/stop/turn/side marker
(pickups only)
3157
2
Tail/stop/turn/side marker
(chassis cabs only)
921
2
Reverse (pickups only)
3157
2
Reverse (chassis cabs only)
194
—
License plate lamp
9145
—
Fog lamp
242
Super Duty (TFA) MaintenanceE163830
