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Dorman 923-100 Roof Marker Light - Left Outer
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.
| Brand | Dorman |
| Part Number | 923-100 |
| Bulb Technology | LED |
| Color/Finish | Black |
| Housing Material | Plastic |
| Length | 94.6 |
| Lens Color | Orange |
| Lens Material | Plastic |
| Maximum Wattage (W) | 0.5 mm |
| Mounting Hardware Included | No |
| Mounting Method | Metal Clip/Screw |
| Overall Height (in) | 43.7 mm |
| Overall Width (in) | 58.5 mm |
| Package Contents | 1 Roof Lamp |
| Switch Included | No |
| Terminal Type | Blade |
| Voltage | 12 |
| Wiring Harness Included | No |
This part fits 33 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2014 | Chevrolet | Silverado 2500 | Left Outer | |
| 2014 | Chevrolet | Silverado 2500 HD | Left Outer | |
| 2014 | Chevrolet | Silverado 3500 HD | Left Outer | |
| 2014 | GMC | Sierra 2500 HD | Left Outer | |
| 2014 | GMC | Sierra 3500 HD | Left Outer | |
| 2013 | Chevrolet | Silverado 2500 HD | Left Outer | |
| 2013 | Chevrolet | Silverado 3500 HD | Left Outer | |
| 2013 | GMC | Sierra 2500 HD | Left Outer | |
| 2013 | GMC | Sierra 3500 HD | Left Outer | |
| 2012 | Chevrolet | Silverado 2500 HD | Left Outer | |
| 2012 | Chevrolet | Silverado 3500 HD | Left Outer | |
| 2012 | GMC | Sierra 2500 HD | Left Outer | |
| 2012 | GMC | Sierra 3500 HD | Left Outer | |
| 2011 | Chevrolet | Silverado 2500 HD | Left Outer | |
| 2011 | Chevrolet | Silverado 3500 HD | Left Outer | |
| 2011 | GMC | Sierra 2500 HD | Left Outer | |
| 2011 | GMC | Sierra 3500 HD | Left Outer | |
| 2010 | Chevrolet | Silverado 2500 HD | Left Outer | |
| 2010 | Chevrolet | Silverado 3500 HD | Left Outer | |
| 2010 | GMC | Sierra 2500 HD | Left Outer | |
| 2010 | GMC | Sierra 3500 HD | Left Outer | |
| 2009 | Chevrolet | Silverado 2500 HD | Left Outer | |
| 2009 | Chevrolet | Silverado 3500 HD | Left Outer | |
| 2009 | GMC | Sierra 2500 HD | Left Outer | |
| 2009 | GMC | Sierra 3500 HD | Left Outer | |
| 2008 | Chevrolet | Silverado 2500 HD | Left Outer | |
| 2008 | Chevrolet | Silverado 3500 HD | Left Outer | |
| 2008 | GMC | Sierra 2500 HD | Left Outer | |
| 2008 | GMC | Sierra 3500 HD | Left Outer | |
| 2007 | Chevrolet | Silverado 2500 HD | Left Outer | |
| 2007 | Chevrolet | Silverado 3500 HD | Left Outer | |
| 2007 | GMC | Sierra 2500 HD | Left Outer | |
| 2007 | GMC | Sierra 3500 HD | Left 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.