{"product_id":"pit66-led-3rd-brake-light-for-1999-2007-chevy-silverado-gmc-sierra-foam-sealed-plug-and-play","title":"PIT66 LED 3rd Brake Light for 1999–2007 Chevy Silverado \u0026 GMC Sierra — Foam-Sealed, Plug-and-Play","description":"\u003cstrong\u003ePIT66's LED high-mount third brake light replaces the factory 1999–2007 Chevy Silverado and GMC Sierra lamp with a sealed, bright, plug-and-play LED assembly.\u003c\/strong\u003e\n\n\u003cp\u003eIf your Silverado or Sierra from 1999 through 2007 needs a reliable, high-visibility third brake light, this PIT66 unit is built to match OEM fitment while upgrading illumination and durability. It is designed to directly fit many 1500, 2500, 3500 and HD models (Classic and regular) and corresponds to reference part numbers 5978318 and 16525205. The assembly offers bright LED output, a foam-sealed housing to keep moisture out, and a straightforward installation path for most owners and technicians.\u003c\/p\u003e\n\n\u003ch3\u003eHow bright and visible is this third brake light?\u003c\/h3\u003e\n\u003cp\u003eThe PIT66 LED assembly produces a clear, crisp stop signal that improves recognition versus aging incandescent bulbs. The LED array lights quickly and maintains consistent brightness over time, which helps other drivers notice braking sooner.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLEDs provide faster illumination than incandescent bulbs\u003c\/li\u003e\n  \u003cli\u003eDesigned for even light distribution across the lens\u003c\/li\u003e\n  \u003cli\u003eImproved visibility in daylight and low-light conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it fit my 1999–2007 Chevy Silverado or GMC Sierra?\u003c\/h3\u003e\n\u003cp\u003eThis brake light is specifically manufactured to match the mounting, connector, and dimensions of 1999–2006 and 2007 Classic Chevrolet Silverado and GMC Sierra 1500, 2500, 3500 and HD models. Before purchase, confirm your truck’s year and model and compare the reference part numbers 5978318 and 16525205 to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOEM-style form factor for direct replacement\u003c\/li\u003e\n  \u003cli\u003eReference part numbers included for cross-checking\u003c\/li\u003e\n  \u003cli\u003eFits both standard and Classic body variants where specified\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is the unit — will it resist weather and road grime?\u003c\/h3\u003e\n\u003cp\u003eThe housing is sealed with high-density foam and engineered to prevent water, mud, and snow intrusion that commonly cause corrosion or failure. This weatherproofing helps the light remain reliable through wet and winter conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFoam-backed seal for water and dust resistance\u003c\/li\u003e\n  \u003cli\u003eRust-resistant materials and secure mounting points\u003c\/li\u003e\n  \u003cli\u003eLens designed to withstand road spray and debris impact\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what’s included?\u003c\/h3\u003e\n\u003cp\u003eInstallation is intended to be straightforward and mirrors the factory replacement procedure; professional installation is recommended if you’re uncomfortable working with vehicle electrical connections. The product ships as a complete LED third brake light assembly ready for mounting and connection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComes as one complete LED third brake light unit\u003c\/li\u003e\n  \u003cli\u003eDesigned for direct bolt-in and plug-in where factory connectors match\u003c\/li\u003e\n  \u003cli\u003eMinor trimming or connector adapters may be needed on some models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: Drivers and technicians who own a 1999–2007 Chevrolet Silverado or GMC Sierra and want an OEM-compatible upgrade that improves brake-light visibility and resists weather-related failure. It’s a practical replacement for faded, cracked, or malfunctioning factory third brake lights and suits fleet maintenance, restoration projects, and everyday truck owners seeking a durable, high-visibility solution.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this replace the factory 3rd brake light on my 2003 Silverado?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it’s designed to fit 1999–2007 Silverado models; confirm compatibility with part numbers 5978318 or 16525205.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the unit waterproof for winter driving?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The housing includes high-density foam sealing to resist water, mud, and snow intrusion.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"PIT66","offers":[{"title":"Default Title","offer_id":55168269123927,"sku":"B0C3LY6D77","price":40.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/pit66-third-brake-light-front-assembly_465983ed-3c6d-487c-a433-8824ebe999f6.jpg?v=1790397443","url":"https:\/\/britishgarage.co.uk\/products\/pit66-led-3rd-brake-light-for-1999-2007-chevy-silverado-gmc-sierra-foam-sealed-plug-and-play","provider":"British Garage","version":"1.0","type":"link"}