{"product_id":"12696966-genuine-gm-high-pressure-diesel-fuel-injector-for-silverado-sierra-6-6l","title":"12696966 Genuine GM High Pressure Diesel Fuel Injector For Silverado Sierra 6.6L","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eThe 12696966 is a genuine GM high pressure diesel fuel injector manufactured for select 2017–2023 Chevrolet Silverado HD and GMC Sierra HD trucks equipped with the 6.6L V8 Duramax diesel engine. It supplies accurately metered fuel into the cylinders through the factory common rail system, helping the engine maintain efficient combustion, stable power output, and proper fuel system operation.\u003c\/p\u003e\n\u003ch2\u003eVehicle Compatibility\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; height: 500px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.6px;\"\u003e\n\u003cth style=\"width: 8.27338%; text-align: center; height: 19.6px;\"\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 26.7184%; text-align: center; height: 19.6px;\"\u003e\u003cstrong\u003eVehicle\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 21.3032%; text-align: center; height: 19.6px;\"\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 42.8058%; 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: 8.27338%;\"\u003e2023\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eChevrolet Silverado 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eCustom, High Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2023\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eChevrolet Silverado 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2023\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eGMC Sierra 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eAT4, Denali, Pro, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2023\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eGMC Sierra 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eAT4, Denali, Pro, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2022\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eChevrolet Silverado 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eCustom, High Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2022\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eChevrolet Silverado 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2022\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eGMC Sierra 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eAT4, Denali, Pro, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2022\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eGMC Sierra 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eAT4, Denali, Pro, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2021\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eChevrolet Silverado 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eCustom, High Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2021\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eChevrolet Silverado 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2021\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eGMC Sierra 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eAT4, Base, Denali, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2021\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eGMC Sierra 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eAT4, Base, Denali, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2020\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eChevrolet Silverado 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2020\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eChevrolet Silverado 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2020\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eGMC Sierra 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eAT4, Base, Denali, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2020\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eGMC Sierra 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eAT4, Base, Denali, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2019\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eChevrolet Silverado 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2019\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eChevrolet Silverado 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2019\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eGMC Sierra 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eBase, Denali, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2019\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eGMC Sierra 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eBase, Denali, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2018\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eChevrolet Silverado 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.0L V8 CNG, 6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2018\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eChevrolet Silverado 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2018\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eGMC Sierra 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eBase, Denali, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2018\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eGMC Sierra 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eBase, Denali, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2017\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eChevrolet Silverado 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2017\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eChevrolet Silverado 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2017\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eGMC Sierra 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eBase, Denali, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 8.27338%;\"\u003e2017\u003c\/td\u003e\n\u003ctd style=\"width: 26.7184%;\"\u003eGMC Sierra 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 21.3032%;\"\u003e6.0L V8 Flex, 6.0L V8 Gas, 6.6L V8 Diesel\u003c\/td\u003e\n\u003ctd style=\"width: 42.8058%;\"\u003eBase, Denali, SLE, SLT\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: 235.2px; width: 100% !important; table-layout: fixed !important; display: table !important;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 27.1583%;\"\u003e \u003ccol style=\"width: 72.482%;\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12696966\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh Pressure Diesel Fuel Injector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYears\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2017–2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVehicle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, GMC Sierra 3500 HD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6.6L V8 Diesel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8.9 × 3.8 × 3.4 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.25 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDirect Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eProduct Features\u003c\/h2\u003e\n\u003cp\u003eThe 12696966 high pressure diesel fuel injector is built to match factory performance and installation requirements:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrecisely controls fuel delivery to meet the operating demands of the 6.6L Duramax diesel engine\u003c\/li\u003e\n\u003cli\u003eDesigned with factory-style sealing surfaces and connector configuration for correct installation\u003c\/li\u003e\n\u003cli\u003eBuilt for use with the original high-pressure common rail fuel injection system\u003c\/li\u003e\n\u003cli\u003eProvides consistent fuel atomization to support smooth engine performance and balanced combustion\u003c\/li\u003e\n\u003cli\u003eManufactured to GM engineering specifications for reliable operation under heavy-duty diesel workloads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplication Notes\u003c\/h2\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eThe 12696966 is intended for select Chevrolet Silverado HD and GMC Sierra HD models equipped with the 6.6L Duramax diesel engine. Before installation, inspect the injector pocket, fuel rail, and high-pressure fuel lines to ensure the system is clean and free of contaminants.\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eAlways verify the part number, VIN, engine configuration, and fuel injection system before installation.\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"GM","offers":[{"title":"Default Title","offer_id":49499044118755,"sku":"12696966","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/5122\/4547\/files\/s-l1600_73.webp?v=1785845346","url":"https:\/\/unitautoparts.com\/products\/12696966-genuine-gm-high-pressure-diesel-fuel-injector-for-silverado-sierra-6-6l","provider":"Unit Auto Parts","version":"1.0","type":"link"}