Third Brake Light Assembly Sierra 2500HD 2007-2014

Third Brake Light Assembly — 2007–2014 GMC Sierra 2500 HD

This Third Brake Light Assembly is a direct-fit replacement engineered specifically for 2007–2014 GMC Sierra 2500 HD trucks. Whether your factory unit has cracked, faded, dimmed, or stopped functioning altogether, this assembly restores proper rear brake signal visibility, helping keep you safe and street-legal.

Restore Critical Rear Brake Visibility

The third brake light — also known as the center high-mounted stop lamp (CHMSL) — plays an important safety role, providing following drivers with a clear, centered brake signal that’s harder to miss than side-mounted taillights alone. A cracked, foggy, or non-functioning third brake light can reduce visibility to drivers behind you, making a timely replacement an important safety consideration.

Direct-Fit Design for Easy Installation

This assembly is engineered as a direct-fit replacement for the factory third brake light on 2007–2014 Sierra 2500 HD trucks. This means no cutting, drilling, or complex wiring modifications are typically required, allowing for a straightforward installation using the factory mounting location and electrical connection.

Built to Factory Specifications

Designed to match the fit, form, and function of the original equipment unit, this assembly is engineered to integrate seamlessly with your Sierra 2500 HD’s existing wiring harness and mounting hardware, restoring your truck’s rear lighting to proper working condition.

A Practical, Necessary Repair

Unlike cosmetic upgrades, a third brake light replacement addresses a functional safety component of your vehicle. A malfunctioning or damaged third brake light can also result in a vehicle inspection failure in areas with safety inspection requirements, making this a practical repair for maintaining both safety and compliance.

Specifications:

• Component Type: Third Brake Light Assembly (CHMSL)
• Vehicle Fitment: 2007–2014 GMC Sierra 2500 HD
• Installation: Direct-fit, factory mounting location and wiring
• Item Number: HG16662

Who Is This Product For?

The Third Brake Light Assembly (2007–2014 Sierra 2500 HD) is ideal for:

• Sierra 2500 HD owners with a cracked, faded, or foggy factory brake light
• Drivers whose third brake light has stopped functioning
• Those needing a factory-spec replacement for safety inspection compliance
• Truck owners wanting a straightforward, direct-fit repair
• Anyone restoring their Sierra 2500 HD’s rear lighting to proper working condition

Why Replace Your Third Brake Light?

A damaged or non-functioning third brake light isn’t just a cosmetic issue — it’s a safety concern that reduces your visibility to drivers behind you, particularly in heavy traffic or poor weather conditions. Replacing it promptly with a factory-fit assembly helps ensure your Sierra 2500 HD remains safe and compliant on the road.

Installation & Fitment Notes

This assembly is designed specifically for 2007–2014 GMC Sierra 2500 HD trucks. Always confirm your exact trim and cab configuration before ordering. Installation typically involves accessing the factory third brake light housing; consulting the included instructions or a professional installer is recommended for proper fit and electrical connection.

Restore your Sierra 2500 HD’s rear safety lighting with this Third Brake Light Assembly — a direct-fit replacement built to factory specifications.

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Product Features

• Direct-fit replacement for factory third brake light
• Restores proper rear brake signal visibility
• Engineered to match OE fit, form, and function
• Uses factory mounting location and wiring harness
• Purpose-built fitment for 2007–2014 GMC Sierra 2500 HD trucks
• Helps maintain safety inspection compliance

FAQs

1. Does this brake light assembly fit my Sierra 2500 HD?

It’s designed to fit 2007–2014 GMC Sierra 2500 HD trucks — always confirm compatibility with your specific trim and cab configuration before ordering.

2. Is this a direct-fit replacement?

Yes, it’s engineered to use the factory mounting location and electrical connection for straightforward installation.

3. Why would I need to replace my third brake light?

Common reasons include cracking, fading, fogging, or the light no longer illuminating due to bulb or wiring issues.

4. What’s the item number for this product?

HG16662.

5. Do I need any special tools to install this?

Most direct-fit third brake light assemblies install using basic hand tools, but consulting the included instructions or a professional installer is recommended.

6. Is this an LED unit?

This listing is for a standard third brake light assembly; please confirm bulb type/technology specifications before ordering if LED is required.

7. Can a broken third brake light cause an inspection failure?

Yes, in areas with safety inspection requirements, a non-functioning brake light can result in a failed inspection.

8. Will this work on other Sierra model years?

This assembly is designed for 2007–2014 Sierra 2500 HD trucks — always verify fitment for other model years or trims separately.

9. Does this include the wiring harness?

It’s designed to connect to your truck’s existing factory wiring harness and mounting hardware — no modifications should be required.

10. Is professional installation required?

While many owners install this themselves using basic tools, professional installation is recommended if you’re unfamiliar with electrical connections.

For fitment guides and technical specifications visit TireRack.com or check compatibility at Wheel-Size.com.

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