When doing replacement or upgrading on 1997 – 2018 Ford Expedition without projector-type headlamps (With with halogen capsule, the bulb size guide is necessary for you to take the reference.
Jump to corresponding car model with the catalog bellow.

Low Beam Headlight 2003 – 2006 9006
High Beam Headlight 2003 – 2006 9005
High Beam and Low Beam Headlight 1997 – 2002 9007
2007 – 2014 9008
Front Fog Light 1997 – 1998 899
2013 – 2014 9140
1999 – 2012 9145
Back Up Light 1997 – 2006 3156
2007 – 2014 921
Brake 1997 – 2005, 2013 – 2014 3157
2006 – 2012 4057
Dome Light 1999 – 2014 578
Front Side Marker 2007 – 2014 194
1997 – 2002 194NA
Front Turn Signal 2006 3157
1997 – 2002, 2007 – 2014 3157NA
2003 – 2005 3457
License Plate 2007 – 2014 168
1997 – 2006 194
Parking Light 1997 – 2002, 2007 – 2014 3157
2003 – 2006 3457
Rear Side Marker 2006 194
2013 – 2014 3157
2007 – 2012 4057
Rear Turn Signal 1997 – 2005, 2013 – 2014 3157
2006 – 2012 4157
Tail Light 1997 – 2005, 2013 – 2014 3157
2006 4057
2007 – 2012 4157
Luggage Compartment 1997 – 2014 578
Center High Mount Stop Light 2003 – 2005 168
2006 – 2014 194
1997 – 2002 912
Courtesy 2007 – 2014 12961
1997 – 2002 912
Engine Compartment Light 1997 – 2002 912
Glove Box 1999 – 2014 194
Map Light 2007 – 2014 12961
2003 – 2006 578
1997 – 1998 579
1999 – 2002 PC579
Low Beam Headlight 2015 – 2018 H11
High Beam Headlight 2015 – 2018 9005
Back Up Light 2015 – 2018 921
Brake 2015 – 2018 3157
Dome Light 2015 – 2018 578
Front Turn Signal 2015 – 2018 7444NA
License Plate 2015 – 2018 168
Parking Light 2015 – 2018 7443NA
Rear Side Marker 2015 – 2018 3157
Rear Turn Signal 2015 – 2018 3157
Tail Light 2015 – 2018 3157
Luggage Compartment 2015 – 2018 578
Center High Mount Stop Light 2015 – 2018 12961
Map Light 2015 – 2017 12961
2018 194
Low Beam Headlight 2015 – 2018 9005
High Beam Headlight 2015 – 2018 H9
Back Up Light 2015 – 2018 921
Brake 2015 – 2018 3157
Dome Light 2015 – 2018 578
Front Turn Signal 2015 – 2018 7444NA
License Plate 2015 – 2018 168
Parking Light 2015 – 2018 7443NA
Rear Side Marker 2015 – 2018 3157
Rear Turn Signal 2015 – 2018 3157
Tail Light 2015 – 2018 3157
Luggage Compartment 2015 – 2018 578
Center High Mount Stop Light 2015 – 2018 12961
Map Light 2015 – 2017 12961
2018 194
Front Fog Light 2018 9140
Back Up Light 2018 921
Brake 2018 3057
Dome Light 2018 578
Front Turn Signal 2018 7443NA
License Plate 2018 168
Parking Light 2018 7444NA
Rear Side Marker 2018 3157
Rear Turn Signal 2018 3157
Tail Light 2018 3157
Luggage Compartment 2018 578
Center High Mount Stop Light 2018 194
Map Light 2018 12961