{"product_id":"84739937-genuine-gm-rear-parking-brake-actuator-for-silverado-sierra-hd","title":"84739937 Genuine GM Rear Parking Brake Actuator For Silverado Sierra HD","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eThe 84739937 is a genuine GM rear parking brake actuator kit for specified 2020–2024 Chevrolet Silverado HD and GMC Sierra HD trucks. It controls engagement and release of the rear parking brake through the vehicle’s factory brake system.\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: 6.22665%; text-align: center; height: 19.6px;\" align=\"right\"\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 25.6849%; text-align: center; height: 19.6px;\"\u003e\u003cstrong\u003eVehicle\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 28.5596%; text-align: center; height: 19.6px;\"\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth style=\"width: 38.6882%; 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: 6.22665%;\"\u003e2026\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eGMC Sierra 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eAT4, AT4X, Denali, Denali Ultimate, Pro, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2025\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eChevrolet Silverado 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eCustom, High Country, LT, LTZ, WT, ZR2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2025\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eChevrolet Silverado 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2025\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eGMC Sierra 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eAT4, AT4X, Denali, Denali Ultimate, Pro, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2025\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eGMC Sierra 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eAT4, Denali, Denali Ultimate, Pro, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2024\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eChevrolet Silverado 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eCustom, High Country, LT, LTZ, WT, ZR2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2024\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eChevrolet Silverado 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2024\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eGMC Sierra 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eAT4, AT4X, Denali, Denali Ultimate, Pro, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2024\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eGMC Sierra 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eAT4, Denali, Denali Ultimate, Pro, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2023\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eChevrolet Silverado 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eCustom, High Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2023\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eChevrolet Silverado 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2023\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eGMC Sierra 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eAT4, Denali, Pro, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2023\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eGMC Sierra 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eAT4, Denali, Pro, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2022\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eChevrolet Silverado 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eCustom, High Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2022\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eChevrolet Silverado 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2022\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eGMC Sierra 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eAT4, Denali, Pro, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2022\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eGMC Sierra 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eAT4, Denali, Pro, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2021\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eChevrolet Silverado 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eCustom, High Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2021\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eChevrolet Silverado 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2021\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eGMC Sierra 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eAT4, Base, Denali, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2021\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eGMC Sierra 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Flex, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eAT4, Base, Denali, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2020\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eChevrolet Silverado 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eCustom, High Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2020\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eChevrolet Silverado 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eHigh Country, LT, LTZ, WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2020\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eGMC Sierra 2500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eAT4, Base, Denali, SLE, SLT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 6.22665%;\"\u003e2020\u003c\/td\u003e\n\u003ctd style=\"width: 25.6849%;\"\u003eGMC Sierra 3500 HD\u003c\/td\u003e\n\u003ctd style=\"width: 28.5596%;\"\u003e6.6L V8 - Diesel, 6.6L V8 - Gas\u003c\/td\u003e\n\u003ctd style=\"width: 38.6882%;\"\u003eAT4, Base, 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: 177.125px; width: 100% !important; table-layout: fixed !important; display: table !important;\"\u003e\n\u003ccolgroup\u003e \u003ccol style=\"width: 25.7194%;\"\u003e \u003ccol style=\"width: 73.9209%;\"\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\u003e84739937\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\u003eRear Parking Brake Actuator Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYears\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2020–2026\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, GMC Sierra\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVehicle Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2500 HD, 3500 HD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePosition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrake System Function\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eParking Brake Actuation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRear Wheel Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle Rear Wheel, Dual Rear Wheel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSystem Application\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eParking Brake System\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 84739937 rear parking brake actuator kit is manufactured to GM factory specifications for parking brake operation:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProvides mechanical actuation required to engage and disengage the rear parking brake\u003c\/li\u003e\n\u003cli\u003eFunctions within the original parking brake system used on compatible Silverado HD and Sierra HD trucks\u003c\/li\u003e\n\u003cli\u003eConfigured for specified Chevrolet Silverado 2500 HD and 3500 HD and GMC Sierra 2500 HD and 3500 HD applications\u003c\/li\u003e\n\u003cli\u003eSupports applicable single rear wheel and dual rear wheel truck configurations\u003c\/li\u003e\n\u003cli\u003eMounts at the rear as part of the vehicle’s original parking brake arrangement\u003c\/li\u003e\n\u003cli\u003eDesigned to connect and operate with the corresponding factory brake components without altering the original system layout\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplication Notes\u003c\/h2\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eThe 84739937 rear parking brake actuator kit is intended for specified 2020–2024 Chevrolet Silverado HD and GMC Sierra HD configurations. Confirm the truck series, rear axle arrangement, wheel configuration, and installed parking brake system before installation.\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eAlways verify part number, VIN, vehicle series, rear wheel configuration, brake system equipment, production details, and applicable factory options before installation.\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"GM","offers":[{"title":"Default Title","offer_id":49517562200291,"sku":"84739937","price":399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0769\/5122\/4547\/files\/85117204_0a1f497e-2b54-4905-b08b-0cbdae35254d.png?v=1788873677","url":"https:\/\/unitautoparts.com\/products\/84739937-genuine-gm-rear-parking-brake-actuator-for-silverado-sierra-hd","provider":"Unit Auto Parts","version":"1.0","type":"link"}