HomeElectrical, Lighting and Body > Lighting - ExteriorDorman 923-100 Roof Marker Light - Left Outer
Part #: 923-100

Dorman 923-100 Roof Marker Light - Left Outer

Left Outer
⚙️ 33 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet and GMC, Silverado 2500, Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, and Sierra 3500 HD
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Overview of Dorman 923-100 Roof Marker Light

The Dorman 923-100 Roof Marker Light is designed specifically for heavy-duty Chevrolet and GMC trucks, including the Sierra 2500 HD, Sierra 3500 HD, Silverado 2500, Silverado 2500 HD, and Silverado 3500 HD models. This 12-volt LED roof marker light offers reliable exterior lighting with a durable black plastic housing and orange lens.

  • 12-volt LED bulb technology for efficient illumination
  • Orange plastic lens with black plastic housing
  • Blade terminal type for secure electrical connection
  • Measures 94.6 mm in length, 58.5 mm in width, and 43.7 mm in height
  • Mounts using metal clip or screw (mounting hardware not included)
  • Compatible with Chevrolet and GMC heavy-duty trucks
  • Part number 923-100 for precise fitment

Detailed Product Description

The Dorman 923-100 roof marker light is engineered to meet the lighting needs of heavy-duty trucks such as the Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD. Featuring LED bulb technology, this roof marker light provides consistent brightness while consuming minimal power. The orange lens enhances visibility and safety, especially in low-light or adverse weather conditions. The black plastic housing and lens materials offer resistance to corrosion and environmental wear, ensuring long-lasting performance. The blade terminal type allows for straightforward electrical connections, while the metal clip and screw mounting method provides a secure installation on the vehicle roof.

Common Applications and Problem Solving

  • Replaces damaged or non-functioning roof marker lights on Chevrolet Silverado 2500 and GMC Sierra 3500 HD trucks
  • Improves vehicle visibility for safer driving in poor weather or nighttime conditions
  • Restores compliance with vehicle lighting regulations for heavy-duty trucks
  • Addresses issues with faded or cracked orange lenses
  • Upgrades from incandescent to energy-efficient LED lighting

Installation Notes and Tips

  • Ensure vehicle is powered off before installation to avoid electrical hazards
  • Use appropriate metal clips or screws for mounting; hardware is not included
  • Verify blade terminal connections are secure and free of corrosion
  • Check fitment compatibility with Chevrolet Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, and Sierra 3500 HD models before installation
  • Consult vehicle service manual for detailed mounting location and wiring instructions

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 923-100 roof marker light undergoes quality inspections to ensure durability and reliable performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Refer to Dorman’s official warranty policy for complete information.

BrandDorman
Part Number923-100
Bulb TechnologyLED
Color/FinishBlack
Housing MaterialPlastic
Length94.6
Lens ColorOrange
Lens MaterialPlastic
Maximum Wattage (W)0.5 mm
Mounting Hardware IncludedNo
Mounting MethodMetal Clip/Screw
Overall Height (in)43.7 mm
Overall Width (in)58.5 mm
Package Contents1 Roof Lamp
Switch IncludedNo
Terminal TypeBlade
Voltage12
Wiring Harness IncludedNo

This part fits 33 vehicles. Search below:

YearMakeModelPositionNotes
2014ChevroletSilverado 2500Left Outer
2014ChevroletSilverado 2500 HDLeft Outer
2014ChevroletSilverado 3500 HDLeft Outer
2014GMCSierra 2500 HDLeft Outer
2014GMCSierra 3500 HDLeft Outer
2013ChevroletSilverado 2500 HDLeft Outer
2013ChevroletSilverado 3500 HDLeft Outer
2013GMCSierra 2500 HDLeft Outer
2013GMCSierra 3500 HDLeft Outer
2012ChevroletSilverado 2500 HDLeft Outer
2012ChevroletSilverado 3500 HDLeft Outer
2012GMCSierra 2500 HDLeft Outer
2012GMCSierra 3500 HDLeft Outer
2011ChevroletSilverado 2500 HDLeft Outer
2011ChevroletSilverado 3500 HDLeft Outer
2011GMCSierra 2500 HDLeft Outer
2011GMCSierra 3500 HDLeft Outer
2010ChevroletSilverado 2500 HDLeft Outer
2010ChevroletSilverado 3500 HDLeft Outer
2010GMCSierra 2500 HDLeft Outer
2010GMCSierra 3500 HDLeft Outer
2009ChevroletSilverado 2500 HDLeft Outer
2009ChevroletSilverado 3500 HDLeft Outer
2009GMCSierra 2500 HDLeft Outer
2009GMCSierra 3500 HDLeft Outer
2008ChevroletSilverado 2500 HDLeft Outer
2008ChevroletSilverado 3500 HDLeft Outer
2008GMCSierra 2500 HDLeft Outer
2008GMCSierra 3500 HDLeft Outer
2007ChevroletSilverado 2500 HDLeft Outer
2007ChevroletSilverado 3500 HDLeft Outer
2007GMCSierra 2500 HDLeft Outer
2007GMCSierra 3500 HDLeft Outer

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

15200084

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.