2023 Sierra 1500 | Assist Steps | Crew Cab | Black | Sport Step | Sierra Script Logo | Set of 2

  • Part Number: 84742428
  • Product estimated in stock or restocked on 06/30/2024

Add style and function to your Next Generation Sierra 1500 Crew Cab with these Black Sport Running Boards with Sierra Script Logo from GMC. These Genuine GMC Accessories assist steps, offered as a factory option (S6L), are designed and engineered to provide a sturdy method getting in and out of your vehicle. The molded and textured step surface helps provide increased traction and accessibility, even in wet and muddy weather. Constructed from aluminum to withstand the elements, these assist steps are then powder coated black to provide excellent durability for the life of your vehicle. These assist steps are commonly called step bars, molded assist steps and tubular assist steps. GMC Accessories Assist Step Mounting Brackets are pre-assembled and include mounting hardware for easy installation in minutes, not hours.


  • Designed and Engineered by GMC
  • Genuine GMC Accessories provide Factory Fit, Finish and Function
  • Pair Black, Crew Cab, Sport Assist Steps (Running Boards) with Sierra Script Logo
  • Same as Factory Option Code S6L
  • Package includes two pre-assembled assist steps, installation hardware and installation instructions
  • Pre-assembled brackets for installation in minutes, not hours
  • Utilizes factory weld nuts in frame for precise mounting
  • Replaces 84538236, 84213455
  • REQUIRES Crew Cab Model
  • Crew Cab and Double Cab (aka Extended Cab) models both have four doors. However, these Assist Steps fit Crew Cab Models that have larger rear doors than Double Cab Models. Crew Cab Second Row Doors measure approximately 42 inches while Double Cab Second Row Doors are smaller at approximately 31.6 inches
  • EXCLUDES Double Cab and Regular Cab models

Sierra 1500 | Assist Steps | Crew Cab | Black | Sport Step | Sierra Script Logo | Set of 2

$1,095.00 $832.20