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Used for: Headlight Bulb High Beam and Low Beam
Used for: Back Up Light Bulb(Compare to original - Option 1)
Used for: Back Up Light Bulb(Compare to original - Option 1)
Used for: Back Up Light Bulb(SLE, Compare to original - Option 2)
Used for: Brake Light Bulb(Denali, Compare to original - Option 1), Tail Light Bulb(Denali, Compare to original - Option 1)
Used for: Brake Light Bulb(Hybrid), Tail Light Bulb(Hybrid)
Used for: Brake Light Bulb(SLE, Compare to original - Option 1), Tail Light Bulb(Denali, Compare to original - Option 2)
Used for: License Plate Light Bulb, Side Marker Light Bulb Front(SLE)
Used for: License Plate Light Bulb, Side Marker Light Bulb Front(SLE)
Used for: Parking Light Bulb, Turn Signal Light Bulb Front
Used for: Side Marker Light Bulb Front(Denali), Side Marker Light Bulb Rear
Used for: Turn Signal Light Bulb Rear(Denali, Compare to original - Option 1)
Used for: Turn Signal Light Bulb Rear(Denali, Compare to original - Option 2)
Used for: Turn Signal Light Bulb Rear(Hybrid)
Used for: Dome Light Bulb, Map Light Bulb, Trunk or Cargo Area Light(Compare to original - Option 2)
Used for: Trunk or Cargo Area Light(Compare to original - Option 1)
Used for: Vanity Mirror Light Bulb
This 2008 GMC Yukon bulb size guide helps you verify the correct replacement bulb by lighting position, so you can match the right part before you buy. Whether you are replacing a headlight, tail light, license plate lamp, or interior bulb, the chart is organized to make fitment easier for the exact area of the vehicle.
Because trim and lighting package details can vary, the same 2008 GMC Yukon may use different bulbs depending on body style and equipment. Use this page to compare the bulb size for each location on your Yukon and narrow down the correct match for your specific lamp housing.
For the best fit, always confirm your Yukon’s trim, package, and lamp type before ordering. Some positions may use halogen bulbs, while others may be converted to LED by a previous owner, and aftermarket LED replacements can change brightness, color, and connector compatibility. If you are unsure, remove the installed bulb and compare the number printed on the base before purchasing a replacement. This is especially helpful for positions that can vary by trim, such as rear turn signals, brake lamps, backup lamps, and cargo-area lighting.
The 2008 GMC Yukon uses an H13 bulb for both the high beam and low beam headlight positions.
The front turn signal bulb is listed as 4157NA.
The front parking light uses a 4157NA bulb.
The license plate light bulb is 2825 or 98.
The rear side marker light bulb is 194NA.
The dome light bulb is 212-2.
The map light bulb is 212-2.
The cargo area light can use 921 for one option, or 212-2 for the alternate option shown on the page.
Backup light fitment can vary by trim and option. Listed sizes include 194, 7441, and 7440 depending on the configuration.
Rear brake and tail light bulb sizes vary by trim. Listed options include 3157R, 7443R, and 3057R depending on the Yukon version.
Yes, the Denali can use different rear bulb sizes than other trims. The page lists Denali rear turn signal and tail/brake bulb options such as 7443, 7443R, 3057, and 3057R depending on the lamp position.
The center high mount stop light is listed as LED.
Yes. The 2008 GMC Yukon can use different bulbs by trim and body style, including SLE, Hybrid, and Denali variants, so it is important to match the bulb to the exact lighting position.
Yes. Checking the installed bulb is the safest way to confirm fitment, especially if the vehicle has been modified, converted to LED, or equipped with a different lighting package.