2004 GMC Yukon bulb guide from head to tail lights

Victoria Kryvenko April 04 2022

How to improve your 2004 GMC Yukon headlights?


Good old GMC Yukon is ideal for big families. Its interior is spacious, it can transport a bunch of people and their luggage, and it can tow heavy trailers as well. All in all, it has many advantages, but there are drawbacks too. As great as it is for making happy family memories, its image is simple and may seem very dull after a few years. Extensive use will not add to its glory and one day simple detailing will be not enough to bring it back to life.

Fortunately, there are ways to make it look fresh and new.  And opting for better brighter headlight bulbs is one of the ways to achieve a new look. For starters, you should figure out what bulbs fit your car. To do that you should look up in the car manual or use 2004 GMC Yukon headlight bulb size chart.

The 2004 GMC Yukon came with a few different headlight options from the factory. You could have either H1, H2, 9004, or 9007 bulbs. However, your bulb sizes may have been different based on the trim.

If you have an 2004 GMC Yukon SLE/SLT, then you will have either H1 or H2 headlights.

If you have an 2004 GMC Yukon XL 1500/2500, then you will have either 9004 or 9007 headlights

The 2004 GMC Yukon XL came with H1, H2, 9004, or 9007 bulbs as well. However, to confirm that you should still open the manual.

Don't waste a lot of time in searching - these bulbs will fit your car perfectly. 

Can you replace factory headlight bulbs with LED?


If you want to brighten things up a little, you might like what LED bulbs have to offer. All automobiles equipped with halogen headlight bulbs from the factory can be converted to LEDs. The major benefit is an increase in road illumination, which means safer driving at night.

2004 GMC Yukon headlight bulb size for LED is usually the same as for halogen bulbs, but it’s always a good idea to check your car’s manual first.  just to stay on the safe side. While you are at it, you can also upgrade your tail light bulbs to LEDs. The brake lights will benefit the most from this change.

Switching to LED bulbs is a popular upgrade because they are more energy-efficient and have a longer lifespan than halogen or incandescent bulbs. They also emit a brighter, whiter light that does a better job of illuminating the road ahead.

How to restore dull headlights?


While dealing with old headlights, it may not be sufficient to switch the bulb to a brighter one. Sometimes even that doesn't help you to get closer to your goal. Your lights may still appear dull because of the old weathered lenses. But there is a fix to that as well.

All headlights have a special protective layer. And when with time this coating deteriorates, your headlights gradually lose their luster. When the lens begins to get hazy or yellowish, less and less light pierces the barrier, and your beams lose their brightness. Aged headlights not only make cars look unsightly, but they also put drivers at risk during nighttime driving.

There are several methods to solve this problem. You could either seek a professional service or try your own hand with special restoration kits and other products. No matter the choice, the process should be quite similar.

A clear lens is achieved by sanding the existing one down to remove the hazy layer.  After that, you need to apply a new UV-resistant coating to protect your lights from further damage. And finally, you should seal everything with a clear sealer for an extra layer of protection.

You can clean dull headlights yourself - all you need is a little time, a little patience and the following products:

How to prevent your headlights from yellowing?


Professional restoration may be pricey and DIY kits often yield little result. So you probably think "how can I keep headlights looking new?". And the answer to that is simple enough - proper care.

First of all, you should not skip regular cleaning. Especially if you live in a humid environment, it's critical to wash your car's headlights on a regular basis. Washing the headlights with automobile soap once a month will help eliminate dirt and chemicals that contribute to later fogging.

It's also necessary to avoid using commercial cleaners that contain ammonia or alcohol. These materials will strip away the protective coating, leading to premature yellowing. If you must clean your headlights with a commercial cleaner, make sure it's gentle and does not contain any harsh chemicals.

Once your headlights are clean and dry, you should apply a UV-resistant coating. This will help to slow down the process of yellowing and keep your headlights looking new for a long time.

And to remove early indications of yellowing, gently polish your headlight lenses using a non-abrasive polishing medium and a microfibre tissue.

How do I know what tail light to buy for 2004 GMC Yukon?


If picking a headlight seemed complicated to you and you thought tail lights must be simple, then we have bad news. There is still a lot to consider before the purchase. Remember that these lights keep you safe on the road, so a little attention does pay off.

Brake lights and tail lights are often located close to each other in the car, but they should not be confused. The brake light is generally on a different circuit than the tail lights for safety reasons. However, if your car relies on two filaments, they're effectively the same light bulb, but each filament still runs on a separate circuit.

Tail lights for 2004 GMC Yukon come in different shapes, but as always, there are charts and manuals for you to check the size and specs of each replacement bulb. The material (LED, HID or Halogen) is up to you. The choice really boils down to what bulbs are more effective from your perspective for their price.

Just remember that the most important thing when picking a new tail light is to make sure it matches the requirements for your 2004 GMC Yukon. Not all models will have the same specifications, so be aware of that before you make your purchase. 

Perfect taillight bulbs for your 2004 GMC Yukon are: