The size of a bulb is the most essential aspect that determines the safety and performance of your Ford Expedition. The size of your Ford Expedition bulb will also vary due to differences in size across different years and usage.  This headlight speaks will talk in detail about the bulb sizes of the 2003-2006 Ford Expedition (the headlights, fog lights, brake lights, turn signals, and taillights) to assist the owners of the 2003, 2004, 2005, and 2006 Ford Expedition to easily determine the bulbs they want and make smart decisions. 2003-2006 Ford Expedition Headlight & Fog Light Bulb Sizes Light Type Bulb Size Low Beam 9006/HB4 High Beam 9005/HB3 Front Fog Light 9140/9145/H10 Note: For the 2003, 2004, 2005, and 2006 Ford Expedition, the low beam bulb is 9006, and the high beam is 9005 . 2003-2006 Ford Expedition Turn Signal & Brake Light Bulb Sizes Light Type Bulb Size Front Turn Signal Light 3156/3157 Rear Turn Signal Light 3156/3157 Side Marker Light 194/168/T10 Rear Side Marker Light (2006) 194/168/T10 Parking Light 3156/3157 2003-2006 Ford Expedition Other Bulb Sizes Light Type Bulb Size Brake Light 3156/3157 Third Brake Light 194/168/T10 Tail Light 3156/3157 Back Up Light 3156/3157 License Plate Light 194/168/T10 Dome Light 41mm/578/211-2 Map Light 41mm/578/211-2 OR 194/168/T10 Glove Box Light 194/168/T10 Trunk Light 41mm/578/211-2 Luggage Compartment Light 41mm/578/211-2 Upgrade Your 2003-2006 Expedition Light Bulbs Are you sick of the boring, sulfur-hued light of halogen bulbs? Maybe it is time to stop using your Ford Expedition halogen bulbs and migrate to LED headlight bulbs. As a matter of fact, lots of Expedition owners have already made the switch, and they have found it a very wise decision. The LED bulb for the 2003-2006 Ford Expedition currently o n the market is much brighter and lasts much longer when compared to halogens. It implies a safer and more vigilant driving experience without having to frequently change the bulbs. The question of where to find the finest LED bulbs resonates in the mind. At RIMTHIN , our specialty is high-quality LED headlight bulbs that perfectly fit the 2003-2006 Expedition , and what our customers think and say about our products attests to them as being 5-star products. Please come and see us at RIMTHIN today. We believe we can help you come up with the best decision on your truck. Can't find the bulb you need? Use our bulb finder tool —it'll help you find it fast. FAQ What are the 2003-2006 Ford Expedition headlight bulb sizes? For the 2003, 2004, 2005, and 2006 Ford Expedition, the low beam bulb is 9006, and the high beam is 9005 . What is the 2003-2006 Ford Expedition backup   l ight bulb size? The sizes of the 2003-2006 Ford Expedition backup   l ight bulb s are typically 3157/3156. What is the 2003-2006 Ford Expedition tail l ight bulb size? The sizes of the 2003-2006 Ford Expedition tail light bulbs are generally 3157/3156. Can I find the information about the 2003-2006 Ford Expedition bulb sizes in this guide? Yes, this guide applies to the 2003-2006 Ford Expedition. Can I replace my 2003-2006 Expedition original headlights with LEDs? Yes, the general model of the 2003-2006 Expedition can have an LED upgrade. Simply ensure that you get the right type of bulbs that suit your car. Can I change the 2006 Ford Expedition headlight bulbs myself? The 2003-2006 Expedition headlight bulb replacement process is relatively simple, and we can usually complete it.   Please note: This guide is for the 2003-2006 Ford Expedition with the original factory light assembly. Ford Expedition makes of light bulbs will vary according to model and configuration, so it is advised that you consult your vehicle ownership manual or take out the light bulb to identify its number to make the right match. In case there are any mistakes or gaps in this guide, please send prompt feedback. Your support is appreciated! Read more ●  2006-2009 Ford Fusion Bulb Size Guide: Headlights, Fog lights & More ●  2010-2012 Ford Fusion Bulb Size Guide: Headlights, Fog lights & More ●  2013-2016 Ford Fusion Bulb Size Guide: Headlights, Fog lights & More ●  2017-2018 Ford Fusion Bulb Size Guide: Headlights, Fog lights & More ●  2003-2006 Ford Fusion Bulb Size Guide: Headlights, Fog lights & More   Disclaimer: The site's information is to be used as a guide only; it does not replace the skills or judgment of a qualified technician. When using this guide, please check your own information. We do not bear any liability or responsibility in case of any loss or harm originated due to the use of the information in this article. For precise troubleshooting and fix-it operations, it is highly advisable to hire an authoritative automotive repair guru. To repair any kind of vehicle issue, individual safety must be considered as the priority.