{"product_id":"tresound-3rd-brake-light-led-high-mount-cargo-lamp-for-chevy-silverado-gmc-sierra-1999-2006-chrome-housing-red-lens-plug-and-pla","title":"Tresound 3rd Brake Light LED High-Mount Cargo Lamp for Chevy Silverado\/GMC Sierra 1999–2006, Chrome Housing Red Lens, Plug-and-Pla","description":"\u003cp\u003e\u003cstrong\u003eTresound's LED 3rd brake light is a direct-fit, high-mount cargo lamp engineered to replace the factory third brake light on 1999–2006 Chevy Silverado and GMC Sierra trucks with brighter, waterproof LEDs.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you drive a Silverado or Sierra Classic from 1999–2006 and want a dependable, plug-and-play upgrade to your high-mount stop lamp, this Tresound unit combines modern LED brightness with OEM-style fitment. It swaps in for part numbers 5978318 and 923240, uses a chrome housing with a red lens, and is built from ABS with a foam-mounted back to keep moisture out. The result is improved visibility, long LED life, and installation that avoids drilling or wire splicing.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this brake light improve visibility on the road?\u003c\/h3\u003e\n\u003cp\u003eThe Tresound LED assembly uses high-intensity LEDs that illuminate faster and brighter than older halogen bulbs, helping other drivers see braking cues more clearly. LEDs offer a crisp red output that maintains brightness over time, reducing the chance of dim or uneven lighting at the rear.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-output LEDs for quicker illumination and clearer brake indication\u003c\/li\u003e\n  \u003cli\u003eEven light distribution across the red lens to minimize hot spots\u003c\/li\u003e\n  \u003cli\u003eLonger operational life compared with incandescent halogen bulbs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs installation difficult — will I need to modify my truck?\u003c\/h3\u003e\n\u003cp\u003eInstallation is designed to be straightforward: the unit is plug-and-play and fits the original mounting points, so no drilling or major modifications are required. This maintains the factory appearance while simplifying replacement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for OE part numbers 5978318 and 923240\u003c\/li\u003e\n  \u003cli\u003eUses factory wiring harness or simple plug-in connector—no splicing\u003c\/li\u003e\n  \u003cli\u003eMounts with existing holes and hardware for a secure fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable is the Tresound high-mount lamp in wet or cold climates?\u003c\/h3\u003e\n\u003cp\u003eThe housing is molded from impact-resistant ABS and features a high-density foam backer to seal the assembly against moisture, keeping rain, snow, and road spray from entering the lamp cavity. Multiple quality-control checks are performed during production to ensure consistent manufacturing and longevity.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eABS construction resists impacts and UV degradation\u003c\/li\u003e\n  \u003cli\u003eFoam-mounted rear seal prevents water intrusion and condensation\u003c\/li\u003e\n  \u003cli\u003eFactory-quality inspection at several production stages for reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this unit match my truck's appearance and fit OEM expectations?\u003c\/h3\u003e\n\u003cp\u003eYes — the chrome housing and red lens are styled to blend with the original high-mount stop lamp while providing the modern look of LEDs. The shape, mounting pattern, and light output are engineered to align with OEM specifications for the listed model years.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOEM-style chrome finish and red lens for seamless visual integration\u003c\/li\u003e\n  \u003cli\u003eExact-fit dimensions for Silverado\/Sierra Classic 1999–2006 models\u003c\/li\u003e\n  \u003cli\u003eDesigned to meet fitment and functional expectations of the original part\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? If you own a Chevy Silverado or GMC Sierra 1500\/2500\/3500 HD Classic from 1999–2006 and you want a reliable, brighter replacement for the factory third brake light without cutting or drilling, the Tresound LED high-mount lamp is made for you. It's suited for owners seeking improved rear signaling, a weather-resistant upgrade for daily drivers, fleet vehicles, or restoration projects where maintaining original fitment is important.\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: Will this fit my 2003 Chevy Silverado without modifications?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it's a direct-fit replacement for Silverado\/Sierra 1999–2006 models and matches part numbers 5978318 and 923240.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it require drilling or wiring changes to install?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No drilling needed; the unit is plug-and-play and installs using the factory mounting points and connector.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tresound","offers":[{"title":"Default Title","offer_id":48086169518238,"sku":"B07YY44XG4","price":44.44,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/tresound-front-view-chrome-housing.jpg?v=1785888184","url":"https:\/\/northtrailauto.ca\/products\/tresound-3rd-brake-light-led-high-mount-cargo-lamp-for-chevy-silverado-gmc-sierra-1999-2006-chrome-housing-red-lens-plug-and-pla","provider":"North Trail Auto","version":"1.0","type":"link"}