{"product_id":"genuine-oem-gm-harness-85108194","title":"2020-2022 GM HD 6.6L Diesel Emission Reduction System Harness Genuine OEM","description":"\u003cp\u003eThis is a \u003cstrong\u003eGenuine OEM Emission Reduction System Harness for 6.6L Diesel Engine\u003c\/strong\u003e for 2020-2022 GM heavy-duty trucks, the same high-quality part sold at your new car dealer. Designed specifically for Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and Sierra 3500 HD models equipped with the 6.6L V8 diesel engine, this harness ensures perfect fit and reliable performance.\u003c\/p\u003e\u003cp\u003eThis emission reduction system harness is a critical component of your truck's diesel emissions control system, ensuring proper communication and operation of emission reduction components. It's compatible with multiple trim levels across the GM heavy-duty truck lineup, providing factory-quality reliability for your 6.6L diesel engine.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGenuine GM OEM part - factory quality and specifications\u003c\/li\u003e\n\u003cli\u003eDirect replacement for emission reduction system harness\u003c\/li\u003e\n\u003cli\u003eSpecifically designed for 6.6L V8 diesel engine\u003c\/li\u003e\n\u003cli\u003ePrecision engineered for exact fit on GM heavy-duty trucks\u003c\/li\u003e\n\u003cli\u003eDurable construction for long-lasting performance\u003c\/li\u003e\n\u003cli\u003eCompatible with Silverado and Sierra 2500 HD and 3500 HD models\u003c\/li\u003e\n\u003cli\u003eFits multiple trim levels including Custom, High Country, LT, LTZ, WT, AT4, Denali, Pro, SLE, and SLT\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eQuick Part Facts - Fitment Chart\u003c\/h3\u003e\u003ctable class=\"fitment-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eYear\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eTrim\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 2500 HD\u003c\/td\u003e\n\u003ctd\u003eCustom, High Country, LT, LTZ, WT\u003c\/td\u003e\n\u003ctd\u003e6.6L V8 - Diesel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 3500 HD\u003c\/td\u003e\n\u003ctd\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003ctd\u003e6.6L V8 - Diesel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003eAT4, Denali, Pro, SLE, SLT\u003c\/td\u003e\n\u003ctd\u003e6.6L V8 - Diesel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2022\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500 HD\u003c\/td\u003e\n\u003ctd\u003eAT4, Denali, Pro, SLE, SLT\u003c\/td\u003e\n\u003ctd\u003e6.6L V8 - Diesel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 2500 HD\u003c\/td\u003e\n\u003ctd\u003eCustom, High Country, LT, LTZ, WT\u003c\/td\u003e\n\u003ctd\u003e6.6L V8 - Diesel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 3500 HD\u003c\/td\u003e\n\u003ctd\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003ctd\u003e6.6L V8 - Diesel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003eAT4, Base, Denali, SLE, SLT\u003c\/td\u003e\n\u003ctd\u003e6.6L V8 - Diesel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2021\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500 HD\u003c\/td\u003e\n\u003ctd\u003eAT4, Base, Denali, SLE, SLT\u003c\/td\u003e\n\u003ctd\u003e6.6L V8 - Diesel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 2500 HD\u003c\/td\u003e\n\u003ctd\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003ctd\u003e6.6L V8 - Diesel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020\u003c\/td\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eSilverado 3500 HD\u003c\/td\u003e\n\u003ctd\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003ctd\u003e6.6L V8 - Diesel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 2500 HD\u003c\/td\u003e\n\u003ctd\u003eAT4, Base, Denali, SLE, SLT\u003c\/td\u003e\n\u003ctd\u003e6.6L V8 - Diesel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020\u003c\/td\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eSierra 3500 HD\u003c\/td\u003e\n\u003ctd\u003eAT4, Base, Denali, SLE, SLT\u003c\/td\u003e\n\u003ctd\u003e6.6L V8 - Diesel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cstyle\u003e.fitment-table {width: 100%; 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