{"product_id":"85604121-genuine-gm-headlamp-assembly-for-gmc-sierra-1500-2-7l-5-3l","title":"85604121 Genuine GM Headlamp Assembly For GMC Sierra 1500 2.7L 5.3L","description":"\u003ch2 data-end=\"779\" data-start=\"479\"\u003eDescription\u003c\/h2\u003e\n\u003cp data-end=\"471\" data-start=\"82\"\u003eThe 85604121 headlamp assembly is a GM factory front lighting unit designed for 2023–2025 GMC Sierra 1500 models listed below. It provides proper forward illumination and integrates with the original mounting points and vehicle wiring on the driver side.\u003c\/p\u003e\n\u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; height: auto;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"width: 12.9496%; text-align: center; height: 19.6px;\"\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 30.036%; text-align: center; height: 19.6px;\"\u003e\u003cstrong\u003eVehicle\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 33.6331%; text-align: center; height: 19.6px;\"\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 22.482%; text-align: center; height: 19.6px;\"\u003e\u003cstrong\u003eTrims\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 12.9496%;\"\u003e2025\u003c\/td\u003e\n\u003ctd style=\"width: 30.036%;\"\u003eGMC Sierra 1500\u003c\/td\u003e\n\u003ctd style=\"width: 33.6331%;\"\u003e2.7L L4 - Gas; 3.0L L6 - Diesel; 5.3L V8 - Flex; 5.3L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 22.482%;\"\u003eElevation, Pro, SLE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 12.9496%;\"\u003e2024\u003c\/td\u003e\n\u003ctd style=\"width: 30.036%;\"\u003eGMC Sierra 1500\u003c\/td\u003e\n\u003ctd style=\"width: 33.6331%;\"\u003e2.7L L4 - Gas; 3.0L L6 - Diesel; 5.3L V8 - Flex; 5.3L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 22.482%;\"\u003eElevation, Pro, SLE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 12.9496%;\"\u003e2023\u003c\/td\u003e\n\u003ctd style=\"width: 30.036%;\"\u003eGMC Sierra 1500\u003c\/td\u003e\n\u003ctd style=\"width: 33.6331%;\"\u003e2.7L L4 - Gas; 3.0L L6 - Diesel; 5.3L V8 - Flex; 5.3L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 22.482%;\"\u003eElevation, Pro, SLE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eGeneral Specifications\u003c\/h2\u003e\n\u003cdiv style=\"width: 100%; display: block;\"\u003e\n\u003ctable class=\"product-table\" style=\"height: 176.4px; width: 100% !important; table-layout: fixed !important; display: table !important;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 29.6763%;\"\u003e \u003ccol style=\"width: 69.964%;\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e85604121\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHeadlamp Assembly, Front\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003eYears\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2023–2025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003ctd\u003e\u003cstrong\u003ePosition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFront Driver Side, \u003cspan\u003eLeft\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e37.27 Ib\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp data-end=\"1574\" data-start=\"1555\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2 data-end=\"1574\" data-start=\"1555\"\u003eProduct Features\u003c\/h2\u003e\n\u003cp\u003eThe 85604121 headlamp assembly is built to match factory performance and installation requirements:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for front driver side installation\u003c\/li\u003e\n\u003cli\u003eMatches OEM housing and mounting configuration\u003c\/li\u003e\n\u003cli\u003eMaintains factory beam alignment specifications\u003c\/li\u003e\n\u003cli\u003eConnects to original electrical harness\u003c\/li\u003e\n\u003cli\u003eBuilt to factory structural specifications\u003c\/li\u003e\n\u003cli\u003eSupports proper forward illumination performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1913\" data-start=\"1893\"\u003eApplication Notes\u003c\/h2\u003e\n\u003cp data-end=\"1854\" data-start=\"1657\"\u003eThe 85604121 headlamp assembly is intended for 2023–2025 GMC Sierra 1500 models equipped with the engines listed above. Proper installation ensures correct beam aim and lighting system operation.\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp data-end=\"1960\" data-start=\"1856\"\u003eAlways verify part number, trim level, and engine configuration before installation.\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"GM","offers":[{"title":"Default Title","offer_id":48342055256291,"sku":"85604121","price":1289.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/5122\/4547\/files\/s-l1600_4bd722e9-9167-4fb3-9372-22061b2919d2.webp?v=1772448724","url":"https:\/\/unitautoparts.com\/products\/85604121-genuine-gm-headlamp-assembly-for-gmc-sierra-1500-2-7l-5-3l","provider":"Unit Auto Parts","version":"1.0","type":"link"}