Diode Dynamics Mustang Interior LED Conversion Kit (2018-2021)

2 Review(s)
$11.10 (28%)
Add a modern appearance and increase the brightness of your cabin with Diode Dynamics' 2018+ Mustang's interior LED conversion kit.
Part Number: 991 DD03

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Upgrade. Add a modern appearance to your vehicle with these replacement LED bulbs. These bright LEDs are available in a number of colors including cool white, to replace the factory yellowish incandescent bulbs.

Brightness. All Diode Dynamics LED lighting is rated with accurate, measured lumen figures, not calculations or guesses. We test the true output in-house and provide you the real numbers to compare.

Reliability. Unlike other bulbs on the market, Diode Dynamics LEDs are built with constant-current inductive circuitry, along with transient suppression. While more expensive than simple bulbs, this allows Diode Dynamics LEDs to last for years, with no flickering or failure.

Experience. After over a decade in business, Diode Dynamics is the most trusted name in automotive LED lighting. Unlike every other LED distributor, we manufacture and engineer products ourselves in the United States, for high quality and fast time-to-market of the newest and brightest LED technologies. We pride ourselves in offering only quality LED products, that will exceed your expectations. Please contact us if you'd like to discuss your lighting project!

Bulb Models. Choose your brightness! We offer multiple options of LED bulbs for replacement, so you can select the one that fits you best. The basic option is a good choice if you're looking for a simple change of color, for something more modern. Choose something further up the list if you'd like to increase output as well!

Product Benefits:

  • Direct replacement of factory incandescent bulb
  • Increased output of LED Appearance
  • Plug and play, simple installation
  • Available in 300 or 440 lumen brightness levels
  • Includes 1 glove box, 2 map light, and 4 vanity light bulbs

CA Residents: Cancer and Reproductive Harm WARNING www.p65warnings.ca.gov.

Hey guys, it's Chris from Steeda. And today, we're going to bring our 2015+ S550 Mustang to 2021 with an LED Interior Conversion Kit from Diode Dynamics. We're going to go ahead and do a review and an install. So, let's get to it! For those 2018+ Mustang owners out there, the Diode Dynamics LED Interior Conversion Kit is the perfect modification to take your incandescent bulbs in the interior and bring it up to the 21st century. This particular kit is offered in 300 lumens or 440 lumens. You get two map lights, you get your vanity lights, and a glove box light as well. All converting to LED from those yellow, old-looking incandescent bulbs. Installation is super simple! It's plug-and-play. So let's hop right in, and we'll show you how! All you need is a couple of hand tools - panel removal tool, small flathead screwdriver, Phillips head screwdriver, and a pair of needle-nose pliers. There's no doubt - when you hop in the car, the first thing you notice are these yellow incandescent map lights from the factory. That's why we have this Diode Dynamics Interior LED Kit. First thing we'll dive into is these map lights. I gotta say the most nerve-wracking part of the installation is trying not to break this plastic piece here. You have a tab on both sides. Right in the center, the idea is that you reach on either side of this console, whatever you want to call it and pull directly down. Just kind of wiggle it a little back and forth a little bit and pull directly down, doing your best not to break those plastic tabs. And after some massaging, it should pull right out. So next, what you're going to want to do now, keep in mind these bulbs are obviously hot since they've been on, so you pull this out. Once you have this pulled out, grab yourself a paper towel. Just pull that out right there. Let it sit on the floor and cool off. Grab your new Diode LED. It lights up. You slide it back in, clicks into place, and do the same thing with the driver's side.Lights right up. Push it in. Clicks right in. Make sure it's secure. I love that look. Make sure these metal brackets are pushed all the way down on the plastic. Make sure everything's lined up. You push it back into place. Moving on to the vanity lights, the key is popping these plastic lenses off on either side, so you can get access to the rest of the vanity. Grab a very small flat-head screwdriver to pop these off. Once you get one loose, you should be able to work your way up and get the rest. There you go! And do the same thing with this side! Perfect! Once you have those plastic lenses off, you grab a Phillips head screwdriver, so you can get access to pulling these bulbs out. It's a little tedious, but well worth the effort once you're completely over to LED. So the reason why the lights went out is because the switch here relies on this visor being open. Now a smaller set of needle nose pliers would probably be more ideal. This is the closest that I had, but it does the job. You reach in and grab your new Diode Dynamics bulbs. Slide them on in. There, they click into place, so you really can't mess it up. So now that you have both bulbs in, you can press down on the switch up here to make sure they work. As you can see, only one of them is working, meaning that all we need to do is pull it out and flip it over. Now both of them should work. Go ahead and put it back into place, grab your screws. These guys are small, so be careful not to lose them. Perfect. You got your lenses, slide them in from the outside. Then you push down on the inside and do the same thing over here. Then push down on the inside, hear that click, and man does that look good! Love it. Open it up and close it, just to make sure everything turns off and on as it should. It works great! You repeat the same thing on the passenger side. Alright, last but not least, the glove box light. Go ahead and open up the glove box, take your belongings out. Got the manual up here, take that out. In order to get some more access here on the right-hand side, you pull up. Pull that out and you push up a little bit. You can pull this whole thing down. On either side, you can see where this pushes in the little bumpers here. Anyways, this gives you access to the factory incandescent glove box light. Alright, on the glovebox light here, you have this plastic housing that goes around the bulb. What you want to do is kind of pry that away, and this whole housing should pop right out, so you can swap the bulb, the spring, and button. Make sure you grab those as well, so you don't misplace them. So you go ahead and slide the spring back into place. This little copper part goes over the push button on the backside, and you can push it back into place. It should just snap right in, perfect. Now for the fun part, the bulb. Now that you can handle it, it comes out real easy. Grab your LED bulb, push it into place. So what you do after that is pop this guy back into place. You can see the hole right here where the button comes out. Perfect. And after that, slide everything back in. perfect and you're all done. In terms of installation, really isn't too bad. All in all, these are literally direct fit upgrades for the factory incandescent bulbs throughout your interior on your S550. Conveniently enough, diode dynamics includes all the bulbs you need in terms of the map lights, the vanity lights, the glove box light, everything you need to bring your interior up to - frankly the LED's you should have had from the factory. But regardless, really happy with the fit and finish. It's also pretty cool when you hit the unlock button, or you enter the vehicle. The map lights still dim on and off, so you still get that nice luxurious touch when you enter or exit the vehicle. Go ahead and comment below. Let us know what other LED upgrades you want to see for your S550 or earlier generation Mustang. If you want to see more cool Ford and Mustang content, go ahead and hit that subscribe button and notification bell, so you get that popping right up on your phone. And don't forget the most important thing, Speed Matters!
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Fitment & Features


Manufacturer: Diode Dynamics

Vehicle Fitment:

Fits Model Year: 2018, 2019, 2020, 2021

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Got a 2021??
This kit is NOT for 2021's. Reason...Ford did not put a glove box light in this year!! So, that extra LED bulb cannot be used and you are paying for a bulb you can't use.
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Verified Buyer   from Colorado on 10/1/2021
Let there be light
Wow what a difference with these . These are much brighter than the standard bulbs that came with the Mustang. The install was not bad, I used a small pick set to remove the lenses and the bulbs and then installed the new ones. Highly recommend.
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from NC on 2/23/2021
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