Frame for 2026 GMC Sierra 2500 HD
1. Work Step Assist Steps - Black - Crew Cab 
2. Mount Cushion 
3. Inner Center Pillar 
4. Windshield Pillar Trim 
5. Outer Rail 
6. Frame Assembly 
7. Mount Cushion 
8. Body A-Pillar 
9. Body A-Pillar Reinforcement 10. Inner Lock Pillar 
11. Uniside Assembly 
12. Front 
13. Inner Windshield Pillar 
14. Cowl Side Panel 
15. Inner Center Pillar 
16. Inner Lock Pillar 
17. Body B-Pillar 
18. Uniside Assembly 
19. Body B-Pillar Baffle Plate 
20. 6-Inch Rectangular Assist Steps, Chrome 21. Body B-Pillar 
22. Rear 
23. Floor Sill 
24. Floor Extension 
25. Cowl Grille 
26. Running Board 
27. Body A-Pillar Trim Panel 
28. Left 
29. Running Board 
30. Body A-Pillar Trim Panel 
31. Body A-Pillar Trim Panel 
32. Running Board 
33. Running Board 
34. Windshield Pillar Trim 
35. Body A-Pillar Trim Panel 
36. Running Board 
37. Running Board 
38. Running Board 
39. Inner Center Pillar 
40. Front 
41. Fender 
42. Uniside Assembly 43. Right 44. Right 
45. Cowl Side Panel Seal 
46. Floor Extension 
47. Extension Panel 
48. Floor Extension 
49. Sill Panel 50. Body C-Pillar Trim Panel No.
Part # / Description / Price
Price
1
Running Board Step 
GM
GM Notes: PARTS: Part is for a dealer installed accessory kit that includes both sides.
Description: The Genuine GM OEM Running Board Step (MPN: 84388999) is an essential truck accessory designed to provide safe, convenient access to your vehicle's cabin. This authentic General Motors side step features a textured traction pad with molded grooves that del ...
MSRP $525.00
$429.19
MSRP $525.00
$429.19
1
Running Board Step GM
GM Description: Genuine GM OEM Running Board Step (MPN: 84208264) designed for double cab trucks, these 4-inch round assist steps provide safe, stable entry and exit with molded traction pads and grooved surfaces. This Chevrolet side step accessory includes complete mount ...
MSRP $850.00
$694.88
MSRP $850.00
$694.88
1
4-Inch Round Assist Steps, Chrome GM
GM Description: **Product Description:**
The Genuine GM OEM 4-Inch Round Assist Steps (MPN: 85715887) are premium chrome running boards engineered to enhance vehicle access and safety on select GM vehicles. These durable truck side steps feature a textured, non-slip surf ...
MSRP $695.00
$568.16
MSRP $695.00
$568.16
1
Running Board Step GM
GM Description: **Product Description:**
The Genuine GM OEM Running Board Step (MPN: 84208267) is a heavy-duty truck side step designed to provide safe, convenient entry and exit from your vehicle. This authentic General Motors assist step features a durable round design ...
MSRP $695.00
$568.16
MSRP $695.00
$568.16
1
Running Board Step GM
GM Description: The Genuine GM OEM Running Board Step (MPN: 84208268) is a chrome-finished assist step designed for Regular Cab trucks, providing safe and convenient entry and exit from your vehicle. This authentic General Motors truck side step features a traction pad wi ...
MSRP $695.00
$568.16
MSRP $695.00
$568.16
1
Running Board Step GM
GM Description: # Product Description
Upgrade your vehicle's accessibility and appearance with the Genuine GM OEM Running Board Step (MPN: 84212738). These truck assist steps are engineered specifically for select GM vehicles, including Chevrolet and GMC trucks, providin ...
MSRP $850.00
$694.88
MSRP $850.00
$694.88
1
6-Inch Rectangular Assist Steps, Black GM
GM Description: Upgrade your truck's accessibility and curb appeal with the Genuine GM OEM 6-Inch Rectangular Assist Steps (MPN: 86574757) in sleek black. These heavy-duty truck side steps feature a textured, non-slip traction surface with molded grooves to safely support ...
MSRP $850.00
$694.88
MSRP $850.00
$694.88
1
Running Board Step GM
GM Description: **Genuine GM OEM Running Board Step (MPN: 84212741) – Chrome Assist Steps for Regular Cab Trucks**
The Genuine GM OEM Running Board Step (MPN: 84212741) is a chrome-plated assist step designed to provide safe, convenient access to your truck cab while a ...
MSRP $695.00
$568.16
MSRP $695.00
$568.16
1
Running Board Step GM
GM Description: # Product Description
The GM OEM Running Board Step (MPN: 84212742) is a genuine General Motors assist step designed to provide safe, convenient access to regular cab trucks. This authentic truck side step features a durable traction pad with molded plast ...
MSRP $750.00
$613.13
MSRP $750.00
$613.13
1
Running Board Step GM
GM Description: # Product Description
Upgrade your vehicle's accessibility and style with the Genuine GM OEM Running Board Step (MPN: 84388997), a Chevrolet assist step designed to make entering and exiting your truck safer and easier. This authentic General Motors work ...
MSRP $455.00
$371.96
MSRP $455.00
$371.96
1
Running Board Step GM
GM Description: # Product Description
Upgrade your truck's accessibility and style with the Genuine GM OEM Running Board Step (MPN: 84388998), engineered specifically for Chevrolet double cab trucks. This heavy-duty assist step features a non-slip traction pad with molde ...
MSRP $495.00
$404.66
MSRP $495.00
$404.66
1
Sport Step Assist Steps With Sierra Script GM
GM Description: # Sport Step Assist Steps With Sierra Script - GMC OEM Part
The Genuine GM OEM Sport Step Assist Steps With Sierra Script (MPN: 84742432) are premium truck side steps engineered to provide safe, convenient access to your GMC vehicle while delivering disti ...
MSRP $1,095.00
$895.16
MSRP $1,095.00
$895.16
1
Running Board Step GM
GM Description: Upgrade your truck's accessibility and style with the Genuine GM OEM Running Board Step (MPN: 84742428), a premium assist step designed to make entering and exiting your vehicle safer and more convenient. These durable crew cab side steps feature a texture ...
MSRP $1,095.00
$895.16
MSRP $1,095.00
$895.16
1
F Step GM
GM Positions: Left
Description: # GM OEM F Step - MPN 85754155
Upgrade your crew cab truck with the Genuine GM OEM F Step (MPN: 85754155), a power retractable running board designed to enhance entry and exit convenience for select GM vehicles. This chrome-finished step automatically dep ...
$1,021.08
$1,021.08
1
Step GM
GM Positions: Right
Description: The Genuine GM OEM Step (MPN: 86280030) is a power retractable crew cab running board designed for seamless entry and exit on select GM vehicles. This chrome-finished step automatically extends and retracts with the vehicle door, combining functionality wi ...
$1,112.97
$1,112.97
1
Step GM
GM Positions: Left
Description: The GM OEM Power Retractable Step (MPN: 86280031) is a genuine crew cab running board designed to provide safe, convenient entry and exit for full-size GM pickup trucks. This motorized side step automatically extends when you open the door and retracts whe ...
$1,109.43
$1,109.43
1
Step GM
GM Positions: Right
Description: The GM OEM step (MPN: 86280032) is a genuine power retractable running board designed for crew cab trucks, providing convenient access to your vehicle's cabin while enhancing its appearance. This factory-original part delivers reliable functionality and du ...
$1,109.43
$1,109.43
1
Driver Side Assist Step GM
GM Positions: Left
Description: The Driver Side Assist Step (MPN: 84973591) is a genuine GM OEM part engineered to provide safe and convenient vehicle access for drivers and passengers. This authentic General Motors component improves entry and exit capability on select GM vehicles and m ...
MSRP $1,247.34
$819.04
MSRP $1,247.34
$819.04
1
Step Bar GM
GM Positions: Right
Description: Genuine GM OEM Step Bar MPN 84973592 is a power retractable chrome stepping solution designed for crew cab trucks, providing safe and convenient entry and exit for passengers. This authentic General Motors part delivers durable performance and factory-orig ...
MSRP $1,247.34
$819.04
MSRP $1,247.34
$819.04
1
Driver Side Assist Step GM
GM Positions: Left
Description: The GM OEM Driver Side Assist Step (MPN: 84973593) is a genuine factory replacement part engineered to provide safe and reliable vehicle entry and exit. This authentic General Motors component delivers durable performance on select GM vehicles and is ideal ...
MSRP $369.10
$243.47
MSRP $369.10
$243.47
1
Step Bar GM
GM Positions: Right
Description: Upgrade your crew cab with the Genuine GM OEM Step Bar (MPN: 84973594), a power retractable running board designed to enhance accessibility and style for select GM vehicles. This authentic General Motors part combines practical functionality with sleek bla ...
MSRP $369.10
$243.47
MSRP $369.10
$243.47
1
4-Inch Round Assist Steps - Chrome - Crew Cab GM
GM Description: The Genuine GM OEM 4-Inch Round Assist Steps (MPN: 85715890) are factory-engineered chrome running boards designed to enhance accessibility and safety for Crew Cab trucks. These authentic General Motors side steps deliver reliable performance and professio ...
MSRP $850.00
$694.88
MSRP $850.00
$694.88
1
4-Inch Round Assist Steps - Black - Crew Cab GM
GM Description: **Paragraph:**
The GM OEM 4-Inch Round Assist Steps (MPN: 85715891) are authentic General Motors running boards engineered to enhance truck accessibility and safety on crew cab models. These genuine GM side steps feature a textured, non-slip surface design ...
MSRP $850.00
$694.88
MSRP $850.00
$694.88
1
6-Inch Rectangular Assist Steps, Chrome GM
GM Description: # Product Description
Upgrade your vehicle's accessibility and curb appeal with the Genuine GM OEM 6-Inch Rectangular Assist Steps (MPN: 86574743), professionally engineered chrome side steps for Chevrolet Crew Cab trucks. These authentic General Motors t ...
MSRP $850.00
$694.88
MSRP $850.00
$694.88
1
6-Inch Rectangular Assist Steps, Black GM
GM Description: The Genuine GM OEM 6-Inch Rectangular Assist Steps (MPN: 86574744) are authentic truck running boards engineered for select GM vehicles seeking enhanced entry and exit convenience. These black side steps combine factory-tested durability with a textured, s ...
MSRP $850.00
$694.88
MSRP $850.00
$694.88
2
Assist Step Finish Cap GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: The GM OEM Assist Step Finish Cap (MPN: 84212674) is a genuine factory part engineered to provide a polished, completed look to your vehicle's assist step on crew cab and double cab work trucks. This authentic General Motors replacement component delivers ...
MSRP $51.44
$35.30
MSRP $51.44
$35.30
2
Assist Step Finish Cap GM
GM Positions: Right
Notes: PARTS: Part included with step bar assembly.
Description: The GM Assist Step Finish Cap (MPN: 84212675) is a genuine OEM trim component designed to provide a polished, finished appearance on your vehicle's work step or assist step. This authentic General Motors part fits crew cab, double cab, and regular cab mode ...
MSRP $50.55
$34.68
MSRP $50.55
$34.68
3
Assist Step Bracket Cover GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: The GM OEM Assist Step Bracket Cover (MPN: 84389007) is a genuine replacement part engineered to provide a polished, finished appearance for work step assemblies on select GM trucks. This collision-approved bracket cover fits double cab, crew cab, and regu ...
MSRP $21.48
$15.42
MSRP $21.48
$15.42