Quick Summary
The Ford Mustang's headlight bulbs-also called headlamps, front lamps, or light bulbs-have evolved from simple 9004/9007 halogen capsules in the 1990s to modern HID and factory-LED units on late-model cars. Halogen lamps give 700-2,100 lumens, HID bulbs jump to about 3,000 lumens, and LEDs can last tens of thousands of hours while using less energy. Different Mustang generations use different bulb bases (9007, H13, D3S, etc.), so checking fitment first is critical.
Fitment Guide
| Model Years | Low/High-Beam Bulb | Notes |
| 1994-2004 | 9007 (HB5) halogen capsule | Dual-filament lamp for low & high beam. (SEALIGHT) |
| 2005-2009 | H13 (9008) halogen | Plug-and-play upgrade to HID projectors available on some trims. |
| 2010-2014 | H13 or D3S HID (GT/GT500) | HID option shares D3S socket; check build sheet. (Ford Service Content) |
| 2015-2017 | D3S HID projector | LED daytime running lights standard. (SEALIGHT) |
| 2018-2025 | Integrated LED headlamp | LEDs in all forward lighting, no replaceable bulb. (Ford Media) |
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Halogen bulbs
HID (xenon) bulbs
LED systems
Brightness & Color
Lifespan & Maintenance
Installation Steps
Aiming made easy
Ford recommends parking 25 ft (7.6 m) from a wall and aligning the hot-spot cut-off with a taped horizontal line at bulb center height. Use the vertical adjuster screw until the upper cutoff kisses the line.
Legal Checklist
Troubleshooting & Upgrades
| Symptom | Likely Cause | Quick Fix |
| One lamp out | Burned filament or ballast | Replace bulb or HID ballast in pairs. (Your AAA Network) |
| Both dim | Cloudy lenses block 80 % of light | Wet-sand and clear-coat or swap assemblies. |
| Flicker after LED swap | CAN-bus mismatch | Add anti-flicker resistor or LED driver box. |
| Glare to others | Beam mis-aimed | Re-aim using Ford's 25-ft wall method. |
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Frequently Asked Questions
For detailed Ford repair instructions, see the official Ford Owner's Manual download or consult professional guides on safe lighting upgrades.
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