2015 GMC Sierra 2500HD Bulb Sizes

Headlight Bulb High Beam and Low Beam - 9012

Headlight Bulb High Beam - 9005

Center High Mount Stop Light Bulb - 921

License Plate Light Bulb - 2825

Daytime Running Light Bulb - 9012

Back Up Reverse Light Bulb - 921

Trunk or Cargo Area Light - 921

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