Frame for 2021 GMC Sierra 2500 HD
1. Work Step Assist Steps - Black - Crew Cab 
2. Frame Assembly 
3. Mount Cushion 
4. Uniside Assembly 
5. Outer Rail 
6. Inner Windshield Pillar 
7. Body A-Pillar 
8. Inner Center Pillar 
9. Windshield Pillar Trim 
10. Mount Cushion 
11. Inner Lock Pillar 
12. Cowl Side Panel 
13. Inner Lock Pillar 
14. Rear 
15. Front 
16. Inner Center Pillar Upper Bracket 
17. Body A-Pillar Bracket 
18. Uniside Assembly 
19. Inner Rocker Assembly 
20. Floor Extension 
21. Floor Sill 
22. Running Board 
23. Running Board 
24. Running Board 
25. Running Board 
26. Running Board 
27. Running Board 
28. Running Board 
29. Left 
30. Body A-Pillar Trim Panel 
31. Body A-Pillar Trim Panel 
32. Body A-Pillar Trim Panel 
33. Body A-Pillar Trim Panel 
34. Left 
35. Inner Center Pillar 
36. Step Bar Assembly 
37. Front 
38. Assist Steps, 6-Inch Rectangular, Chrome 
39. Fender 
40. Step Bar Assembly 
41. Right 
42. Right 
43. Right 
44. Right 
45. Cowl Grille 
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: Make it easier to get into and out of your vehicle with these sturdy Chevrolet Accessories Assist Steps. These Crew Cab Work Step Assist Steps, also known as truck side steps, feature a traction pad with molded plastic grooves to help provide more stable f ...
MSRP $525.00
$429.19
MSRP $525.00
$429.19
1
Running Board Step GM
GM Description: Make it easier to get into and out of your vehicle with these sturdy Chevrolet Accessories Assist Steps. They include mounting hardware and a traction pad with molded plastic grooves for more stable footing. Make it easier to get into and out of your vehic ...
MSRP $850.00
$694.88
MSRP $850.00
$694.88
1
4-Inch Round Assist Steps, Chrome GM
GM Description: Step up convenience and style with these highly durable and capable Chevy Accessories Truck Assist Steps, also known as running boards or side steps. Designed and engineered specifically to fit your vehicle, these sturdy steps feature a textured surface to ...
MSRP $695.00
$568.16
MSRP $695.00
$568.16
1
6-Inch Rectangular Assist Steps, Black GM
GM Description: Step up convenience and style with these highly durable and capable Chevy Accessories Truck Assist Steps, also known as running boards or side steps. Designed and engineered specifically to fit your vehicle, these sturdy steps feature a textured surface to ...
MSRP $850.00
$694.88
MSRP $850.00
$694.88
1
Running Board Step GM
GM Description: Make it easier to get into and out of your vehicle with these sturdy Chevrolet Accessories Assist Steps. They include mounting hardware and a traction pad with molded plastic grooves for more stable footing. These Regular Cab 6-Inch Rectangular Assist Step ...
MSRP $695.00
$568.16
MSRP $695.00
$568.16
1
Running Board Step GM
GM Description: Make it easier to get into and out of your vehicle with these sturdy Chevrolet Accessories Assist Steps. They include mounting hardware and a traction pad with molded plastic grooves for more stable footing. These Regular Cab 6-Inch Rectangular Assist Step ...
MSRP $750.00
$613.13
MSRP $750.00
$613.13
1
Running Board Step GM
GM Description: Make it easier to get into and out of your vehicle with these sturdy Chevrolet Accessories Assist Steps. Includes all mounting hardware. Parked over a hole or a puddle? No problem with these Assist Steps. They make getting in and out of your vehicle much e ...
MSRP $455.00
$371.96
MSRP $455.00
$371.96
1
Running Board Step GM
GM Description: Make it easier to get into and out of your vehicle with these sturdy Chevrolet Accessories Assist Steps. They include mounting hardware and a traction pad with molded plastic grooves for more stable footing. Parked over a hole or a puddle? No problem with ...
MSRP $495.00
$404.66
MSRP $495.00
$404.66
1
Sport Step Assist Steps GM
GM Description: Make it easier to get into and out of your vehicle with these sturdy GMC Accessories Assist Steps. They include mounting hardware and a traction pad with molded plastic grooves for more stable footing. These Double Cab Sport Step Assist Steps, also known a ...
MSRP $1,095.00
$895.16
MSRP $1,095.00
$895.16
1
Running Board Step GM
GM Description: Make it easier to get into and out of your vehicle with these sturdy GMC Accessories Assist Steps. These Crew Cab Sport Step Assist Steps, also known as truck side steps, feature a traction pad with molded plastic grooves to help provide more stable footing. Includes all mounting hardware. Parked over a hole or a puddle? No problem with these Assist Steps. They make getting in and out of your vehicle much easier, plus they add a customized look. You get function and style with this accessory.
MSRP $1,095.00
$895.16
MSRP $1,095.00
$895.16
1
Driver Side Assist Step GM
GM Positions: Left
Description: Assists with access into and out of your vehicle
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
Collision parts are designed to help promote proper and safe repair
MSRP $1,247.34
$819.04
MSRP $1,247.34
$819.04
1
Step Bar GM
GM Positions: Right
Description: Crew cab, power retractable, chrome.
MSRP $1,247.34
$819.04
MSRP $1,247.34
$819.04
1
Driver Side Assist Step GM
GM Positions: Left
Description: Assists with access into and out of your vehicle
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
Collision parts are designed to help promote proper and safe repair
MSRP $369.10
$243.47
MSRP $369.10
$243.47
1
MSRP $369.10
$243.47
1
$1,152.93
1
$1,327.63
1
Step Bar Assembly GM
GM Description: Crew cab, round type, chrome. Step up convenience and style with these highly durable and capable Chevy Accessories Truck Assist Steps, also known as running boards or side steps. Designed and engineered specifically to fit your vehicle, these sturdy steps ...
MSRP $850.00
$694.88
MSRP $850.00
$694.88
1
Step Bar Assembly GM
GM Description: Crew cab, round type, black. Step up convenience and style with these highly durable and capable Chevy Accessories Truck Assist Steps, also known as running boards or side steps. Designed and engineered specifically to fit your vehicle, these sturdy steps ...
MSRP $850.00
$694.88
MSRP $850.00
$694.88
1
6-Inch Rectangular Assist Steps, Chrome GM
GM Description: Make it easier to get into and out of your vehicle with these sturdy Chevrolet Accessories Assist Steps. These Crew Cab 6-Inch Rectangular Assist Steps, also known as truck side steps, feature a traction pad with molded plastic grooves to help provide more ...
MSRP $850.00
$694.88
MSRP $850.00
$694.88
1
Step Bar Assembly GM
GM Description: Crew cab, oval type, black. Step up convenience and style with these highly durable and capable Chevy Accessories Truck Assist Steps, also known as running boards or side steps. Designed and engineered specifically to fit your vehicle, these sturdy steps f ...
MSRP $850.00
$694.88
MSRP $850.00
$694.88
1
$1,147.68
1
$1,100.30
2
Assist Step Finish Cap GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: Crew cab, work step. Double cab, work step. Crew cab black assist. Double cab black assist. Installed in your vehicle's assist step for a finished appearance
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
Collision parts are designed to help promote proper and safe repair
MSRP $51.44
$35.33
MSRP $51.44
$35.33
2
Assist Step Finish Cap GM
GM Positions: Right
Notes: PARTS: Part included with step bar assembly.
Description: Crew cab, work step. Double cab, work step. Regular cab, black assist. Crew cab black assist. Double cab black assist. Installed in your vehicle's assist step for a finished appearance
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
Collision parts are designed to help promote proper and safe repair
MSRP $50.55
$34.71
MSRP $50.55
$34.71
3
Assist Step Bracket Cover GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: Double cab, work step. Crew cab, work step. Regular cab, work step. Helps provide a finished appearance
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Collision parts are designed to help promote proper and safe repair
MSRP $21.48
$15.53
MSRP $21.48
$15.53