PIT66 Third Brake Light for Chevy Silverado & GMC Sierra 1999–2007 — Direct-Fit, OE-Style Replacement (Clear Lens)

PIT66's third brake light is a direct-fit, high-mounted replacement lamp engineered to match OE form and function for Chevy Silverado and GMC Sierra models from 1999 through the 2007 Classic years.

This replacement third brake lamp restores the high-mounted center stop light on compatible Chevrolet and GMC pickups with a durable housing, clear illumination and plug-and-play fitment. Designed to meet original equipment standards, the assembly provides reliable visibility, an OEM-style appearance and a straightforward installation path for DIYers and professional installers alike. The unit references OEM part numbers 5978318 and 16525205 and is built to withstand typical road impacts and weather exposure.

Will this brake light fit my Silverado or Sierra?

Yes — the PIT66 third brake light is made to fit Chevy Silverado 1500, 2500, 3500 and HD models from 1999–2006 and the Classic 2007 models, and it also fits GMC Sierra 1500, 2500, 3500 and HD models for the same years. It matches the mounting points and electrical connections used on the factory unit.

• Compatible model years: 1999–2006 and Classic 2007
• Supported trims: Silverado and Sierra 1500 / 2500 / 3500 and HD
• OEM reference numbers included: 5978318, 16525205

How durable and reliable is this replacement lamp?

The assembly is manufactured to OE-equivalent standards for strength and impact resistance, with materials designed to resist road debris and weather exposure. The lens and housing are engineered for consistent light transmission and long service life, matching factory performance.

• OE-standard construction for durability
• Impact- and weather-resistant materials
• Consistent illumination and long-term performance

How easy is installation and what hardware is required?

Installation is straightforward and intended to be plug-and-play with the vehicle's original wiring and mounting. Basic hand tools are typically all that’s needed, though professional installation is recommended if you're not comfortable working on vehicle trim or wiring.

• Direct-fit mounting — no custom brackets required
• Uses existing vehicle connectors and fasteners
• Recommended tools: screwdriver, socket set, and trim pry tool

What does this light do for visibility and safety?

The high-mounted stop lamp increases the vehicle's rear visibility by signaling braking to drivers at higher eye levels, which helps reduce reaction time for following vehicles. The light is designed to illuminate promptly and clearly, improving overall recognition in traffic and poor-visibility conditions.

• High-mounted position improves line-of-sight for trailing drivers
• Bright, consistent illumination for quick recognition
• Helps reduce the chance of rear-end collisions from delayed response

Who is this for: Drivers and technicians restoring or repairing the center high-mounted stop lamp on Chevrolet Silverado or GMC Sierra full-size trucks from the 1999–2007 Classic era. It’s suited to owners who want an OEM-style replacement that meets factory fitment and durability expectations, as well as installers who need a dependable direct-fit assembly with familiar part references.