Brackets, Flanges & Hangers for 2021 GMC Sierra 3500 HD
1. Fender 
2. Outer Rail 
3. Bumper 
4. Uniside Assembly 
5. Inner Windshield Pillar 
6. Inner Center Pillar 
7. Inner Lock Pillar 
8. Side Panel 
9. Rear Bumper 
10. Roof Panel 
11. Headliner 
12. Front Floor Pan 
13. Console Assembly 
14. Sunroof Glass 
15. Park Sensor 
16. Steering Wheel 
17. Lock Pillar Trim 
18. Step Bar Assembly 
19. Cowl Grille 
20. Frame Assembly 
21. Seat Cushion Pad 
22. Windshield Pillar Trim 
23. Carrier 
24. Inst Cluster 
25. Floor Pan Reinforcement Bracket 
26. Filler Panel 
27. Upper Trim Panel 
28. Filler Panel 29. Seat Trim Panel Bracket No.
Part # / Description / Price
Price
1
$1,131.77
1
$1,303.27
1
$1,126.62
1
$1,080.11
2
Driver Side Assist Step 
GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
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
$804.01
MSRP $1,247.34
$804.01
2
Step Bar GM
GM Positions: Right
Notes: PARTS: Part included with step bar assembly.
Description: Crew cab, power retractable, chrome.
MSRP $1,247.34
$804.01
MSRP $1,247.34
$804.01
2
Driver Side Assist Step GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
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
$244.59
MSRP $369.10
$244.59
2
Step Bar GM
GM Positions: Right
Notes: PARTS: Part included with step bar assembly.
Description: Crew cab, power retractable, black.
MSRP $369.10
$244.59
MSRP $369.10
$244.59
3
Driver Side Assist Step Front Finish Cap GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: 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 $17.38
$13.61
MSRP $17.38
$13.61
3
Passenger Side Assist Step Front Finish Cap GM
GM Positions: Right
Notes: PARTS: Part included with step bar assembly.
Description: 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 $17.38
$13.61
MSRP $17.38
$13.61
3
Driver Side Assist Step Front Finish Cap GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: 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 $17.66
$13.83
MSRP $17.66
$13.83
3
Passenger Side Assist Step Front Finish Cap GM
GM Positions: Right
Notes: PARTS: Part included with step bar assembly.
Description: 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 $17.66
$13.83
MSRP $17.66
$13.83
4
Driver Side Assist Step Front Finish Cap GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: 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 $17.38
$13.61
MSRP $17.38
$13.61
4
Passenger Side Assist Step Front Finish Cap GM
GM Positions: Right
Notes: PARTS: Part included with step bar assembly.
Description: 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 $17.38
$13.61
MSRP $17.38
$13.61
4
Driver Side Assist Step Front Finish Cap GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: 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 $17.66
$13.83
MSRP $17.66
$13.83
4
Passenger Side Assist Step Front Finish Cap GM
GM Positions: Right
Notes: PARTS: Part included with step bar assembly.
Description: 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 $17.66
$13.83
MSRP $17.66
$13.83
4
4
4
Assist Step Finish Cap GM
GM Positions: Front left
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
$37.19
MSRP $51.44
$37.19
4
Assist Step Finish Cap GM
GM Positions: Front right
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
$36.54
MSRP $50.55
$36.54
5
Step Bar Plate GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: Crew cab, power retractable.
MSRP $10.39
$8.14
MSRP $10.39
$8.14
6
Motor GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: Crew cab, power retractable.
$294.28
$294.28
6
Passenger Side Assist Step Motor GM
GM Positions: Right
Notes: PARTS: Part included with step bar assembly.
Description: Crew cab, power retractable.
$307.30
$307.30
7
Assist Step Shield GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $8.12
$6.36
MSRP $8.12
$6.36
8
Driver Side Assist Step Shield GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $34.94
$27.37
MSRP $34.94
$27.37
8
Passenger Side Assist Step Shield GM
GM Positions: Right
Notes: PARTS: Part included with step bar assembly.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $34.94
$27.37
MSRP $34.94
$27.37
9
Rod GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: Crew cab, power retractable.
MSRP $33.33
$26.10
MSRP $33.33
$26.10
10
Rear Bracket GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: Crew cab, power retractable.
$137.95
$137.95
10
Rear Bracket GM
GM Positions: Right
Notes: PARTS: Part included with step bar assembly.
Description: Crew cab, power retractable.
$141.42
$141.42
11
Driver Side Assist Step Insert GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $115.30
$79.88
MSRP $115.30
$79.88
11
F Insert GM
GM Positions: Right
Notes: PARTS: Part included with step bar assembly.
Description: Crew cab, power retractable.
$118.38
$118.38
12
Lamp GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: Crew cab, power retractable.
$105.59
$105.59
12
Lamp GM
GM Positions: Right
Notes: PARTS: Part included with step bar assembly.
Description: Crew cab, power retractable.
$105.59
$105.59
13
Wire GM
GM Positions: Left
Notes: PARTS: Part included with step bar assembly.
Description: Crew cab, power retractable.
MSRP $23.12
$18.11
MSRP $23.12
$18.11
13
Wire GM
GM Positions: Right
Notes: PARTS: Part included with step bar assembly.
Description: Crew cab, power retractable.
MSRP $35.97
$28.17
MSRP $35.97
$28.17
