PIAA 19615 9005 (HB3) Xtreme White Plus
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GMC Yukon XL 2019 Bulb Size
Bulb size chart
9005 Bulbs
Used for: Headlight Bulb High Beam
H11 Bulbs
Used for: Headlight Bulb Low Beam(with halogen headlights)
D3S Bulbs
Used for: Headlight Bulb Low Beam(with HID headlights)
921 Bulbs
Used for: Back Up Reverse Light Bulb
2825 Bulbs
Used for: License Plate Light Bulb
6612F Bulbs
Used for: Vanity Mirror Light Bulb
If you are looking up bulb sizes for a 2019 GMC Yukon XL, this page helps you match the correct bulb to each lighting position before you buy. It is organized by location so you can quickly verify the right fit for headlights, reverse lights, license plate lights, and vanity mirror lights.
The 2019 GMC Yukon XL can use different bulb types depending on trim and lighting equipment, so the same vehicle may not use the same low beam setup across all versions. Checking the bulb by lighting position is the safest way to avoid ordering the wrong part.
Fitment can vary by market, trim level, body style, and lighting package, so always confirm what is installed on your Yukon XL before purchasing replacements. This is especially important for headlight bulbs, since halogen and HID-equipped models use different bulb types and are not interchangeable without the proper hardware. If your vehicle has been modified with aftermarket LED or HID conversion kits, the original bulb size listed for the factory setup may not match the current installation. For the best results, remove the existing bulb and compare it to the chart before buying, especially if the truck has had prior repairs or lighting upgrades.
FAQ
What bulb does the 2019 GMC Yukon XL use for the high beam headlights?
The high beam headlight bulb size listed for the 2019 GMC Yukon XL is 9005.
What bulb does the 2019 GMC Yukon XL use for the low beam headlights with HID headlights?
For models equipped with HID headlights, the low beam bulb size is D3S.
What bulb does the 2019 GMC Yukon XL use for the low beam headlights with halogen headlights?
For models equipped with halogen headlights, the low beam bulb size is H11.
What bulb does the 2019 GMC Yukon XL use for the reverse lights?
The back up reverse light bulb size listed for this vehicle is 921.
What bulb does the 2019 GMC Yukon XL use for the license plate lights?
The license plate light bulb size listed for the 2019 GMC Yukon XL is 2825.
What bulb does the 2019 GMC Yukon XL use for the vanity mirror lights?
The vanity mirror light bulb size listed for this model is 6612F.
Why does the low beam bulb size vary on the 2019 GMC Yukon XL?
Because the Yukon XL could be equipped with different headlight systems. Some versions use HID headlights with D3S low beams, while others use halogen headlights with H11 low beams.
Can I use an LED replacement in place of the factory bulb on my 2019 GMC Yukon XL?
Often yes, but only if the LED replacement is designed for the correct bulb size and fits the housing properly. Aftermarket LED conversions can change beam pattern, brightness, and heat management, so compatibility should be checked carefully.
How can I tell which headlight bulb my Yukon XL has before ordering?
Check the existing bulb, inspect the headlight assembly, and confirm whether the vehicle has HID or halogen headlights. The installed bulb type is the best reference if you are unsure.
Are the bulb sizes the same for every 2019 GMC Yukon XL trim?
Not always. Trim level, lighting package, and market differences can change the bulb type, especially for the headlights.
Should I replace bulbs in pairs on a 2019 GMC Yukon XL?
For headlights, replacing bulbs in pairs is often a good idea so both sides have similar brightness and color. This is especially helpful when one bulb has aged noticeably more than the other.
What should I do if my Yukon XL has aftermarket headlights or conversion kits?
Check the actual installed bulb and the headlight hardware first. Aftermarket conversions may use a different bulb than the factory setup, so the original bulb chart may not match the current configuration.