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How Do You Change A Headlight On A Mustang?

by David EvansLast updated on March 9, 2026Cars & Other Vehicles7 min read
Automotive History
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To change a headlight on most Ford Mustangs, you'll typically remove three 10mm bolts and a plastic pushpin, then unplug the bulb connector to release the old assembly. First things first, always disconnect the battery for safety. And hey, always check your specific model's service manual for the exact steps.

How do you take the headlights off a Mustang?

To take the headlights off a Mustang, you'll often need to loosen or even partially remove the front bumper cover to access the mounting points and electronic components underneath. That way, you can reach the bolts and clips securing the headlight assembly to the car's frame.

After you've carefully pulled back that bumper cover and gained access, you can usually unbolt the headlight assembly. You'll probably need a trim removal tool for those plastic clips and a socket set for the bolts (they're usually 10mm). Seriously, always disconnect your car's battery before messing with any electrical stuff. It prevents shorts or injury, and the NHTSA recommends it for all automotive repairs.

How do you clean the headlights on a 2006 Mustang?

To clean the headlights on a 2006 Mustang, you'll want to wet sand the lenses. Start with a medium-grit sandpaper, something like 800-grit, to really get rid of that oxidation and buildup. Then, you'll move on to finer grits.

Once you're done with the 800-grit, switch to 1500-grit, and then finally 3000-grit sandpaper. Make sure to keep the surface wet the whole time. After that, polish the lenses with a plastic polish or a specific headlight restoration compound until they're crystal clear. You might also want to apply a UV-protective clear coat to stop them from yellowing again down the road. This whole process, which AutoZone also details, really brings back clarity and boosts your light output (and honestly, it makes a huge difference!).

How do you adjust the headlights on a 2005 Mustang?

To adjust the headlights on a 2005 Mustang, you'll need to find the adjustment screws on the headlight housing. They're often accessible right under the hood. Just turn them with a Phillips head screwdriver.

On the 2005 model, you'll generally spot a gear-like mechanism or sometimes a "green box" on the top or side of the headlight assembly. Twisting that screw moves the light beam up or down. To aim them correctly, park your car on a level surface about 25 feet away from a wall. Measure the headlight height, then adjust the beam's top cut-off to match or sit just below that height. Always check your owner's manual for the most precise guidelines, though.

Do 2020 Mustangs have fog lights?

Yep, many 2020 Ford Mustang models actually do come with fog lights. You'll especially see them on the EcoBoost and GT trims, even the California Special variants.

These fog lights are usually built right into the lower front fascia. They're there to help you see better in nasty weather, like fog, heavy rain, or snow. While they're standard on most of the higher trims, base models might only offer them as an optional extra, or sometimes not at all. So, always double-check the specific trim level and any optional packages for the exact features. Resources like Kelley Blue Book can help with that.

How much is a Mustang headlight?

Alright, so the average cost for just a Ford Mustang headlight *bulb* replacement was between $185 and $203 back in 2021, and that included both labor and parts.

But here's the thing: the cost can really jump around depending on if you're just swapping out a bulb or replacing the whole headlight assembly. A complete OEM headlight assembly for newer models, especially ones with HID or LED tech, could easily run you anywhere from $300 to over $1,000 per side. Aftermarket assemblies, thankfully, are usually a bit cheaper. Labor costs, which RepairPal estimated at $66 to $84 for a bulb replacement, will also depend on where you live and what your mechanic charges.

Who makes custom headlights?

RWR LED Technologies is one company that builds custom headlights, sure, but lots of other specialized manufacturers and aftermarket brands also offer custom lighting solutions.

Some of the big names in the custom headlight game include Morimoto, AlphaRex, Spec-D Tuning, and Anzo USA, just to name a few. These companies offer all sorts of options. We're talking full LED conversions, projector retrofits, unique daytime running lights (DRLs), and even cool blacked-out housings. Basically, they let owners really personalize their Mustang's look and performance. You can usually snag these products from specialty automotive lighting retailers or performance parts vendors.

What kind of headlights does a Mustang have?

Over the years, Ford Mustangs have sported various types of headlights, including halogen, High-Intensity Discharge (HID), and Light Emitting Diode (LED) bulbs and full assemblies.

Older models mostly came with halogen bulbs. They're pretty cost-effective, but they give off a yellowish light and don't last as long. Then, later generations brought in HID (Xenon) lights, which give you brighter, whiter illumination. More recent Mustangs (think 2015 and newer) often come standard with, or at least offer as an option, full LED headlight assemblies. These are awesome for their energy efficiency, instant-on capability, and super long lifespan. Each of these types offers different light output and distinct looks, too.

What is RTR Mustang?

An RTR Mustang is basically a dealer-installed OEM+ performance package for the Ford Mustang. It's developed by Formula Drift Champion Vaughn Gittin Jr.'s company, RTR Vehicles.

The RTR package totally transforms a standard Mustang. It adds a mix of aesthetic and performance upgrades, like unique aerodynamics, cool wheels, suspension enhancements, and sometimes even engine tuning. The best part? It's all engineered to keep your factory warranty intact. You can get these packages through specific Ford dealerships. They give Mustang enthusiasts a track-proven, aggressive, and super distinctive look and feel, just like the RTR Vehicles official website explains.

What size are Mustang headlights?

For 2005-2012 Mustangs, the standard headlight bulb size is an H13 halogen bulb. This single bulb handles both your low and high beam functions.

That said, bulb sizes can really change depending on the exact model year and trim level you have. For instance, some 2007-2012 Mustangs offered optional HID headlights, which actually use different bulb types (like a D3S for the HID capsule). Then, 2013-2014 Mustangs came with HID headlights as standard equipment. Newer generations (2015 and beyond) often have full LED assemblies. These usually don't use a single, replaceable bulb size like an H13 at all. Honestly, your best bet is always to check your owner's manual or use a trustworthy online bulb finder, like the Sylvania Bulb Finder, to confirm the right size for your specific car.

How do you change a fog bulb on a Mustang?

To change a fog bulb on your Mustang, you'll usually reach in behind the fog light housing, give the old bulb a quarter-turn counter-clockwise, and then just pull it straight out.

Once that old bulb is out, press the release button on the electrical connector and slide it right off. When you're putting in the new bulb (it's often an H11 for many S197 and S550 models, by the way), try not to touch the glass with your bare hands. The oils from your skin can create hot spots and seriously shorten the bulb's life. Reconnect the electrical connector, pop in the new bulb, and then rotate it clockwise until it clicks and locks into place. Getting access often means you'll need to work from underneath the front bumper, or sometimes even remove a wheel well liner.

David Evans
Author

David is an automotive enthusiast and writer covering cars, motorcycles, and all types of vehicles with practical maintenance tips.

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