Hardware, Fasteners & Fittings for 2021 GMC Sierra 3500 HD
1. Rear Bumper 
2. Outer Belt Assembly 
3. Step Bar Assembly 
4. Hood 
5. Headliner 
6. Windshield Pillar Trim 
7. Console Assembly 
8. Door Trim Panel 
9. Filler Panel 
10. Rear 
11. Bumper 
12. Fender 
13. Nameplate 
14. Armrest Assembly 
15. Door Shell 
16. Front 
17. Console Assembly 
18. Lock Pillar Trim 
19. Rear 
20. Door Shell 
21. Mount Cushion 
22. Box Assembly 
23. Front 
24. Outer Rail 
25. Belt Molding 
26. Tailgate 
27. Multi Switch 
28. Door Trim Panel 
29. Truck Bed Decal 
30. Frame Assembly 
31. Bumper Cover Bolt 
32. Bumper Cover Bolt 
33. Mirror Assembly 
34. Bumper Cover Bolt 
35. Bumper Cover Bolt 
36. Steering Wheel 
37. Bumper Cover Bolt 
38. Grille Bolt 
39. Bumper Cover Bolt 
40. Horn 
41. Upper Molding 
42. Grille Bolt 
43. Quarter Panel Splash Shield Bolt 
44. Front Molding Retainer 
45. Grille Surround Bolt 
46. Rear 
47. Bumper Cover Bolt 
48. Bumper Cover Bolt 
49. Quarter Panel Splash Shield Bolt 
50. Bumper Cover Bolt 
51. Hole Cover Bolt 
52. Bumper Cover Bolt 
53. Inner Rocker Assembly 
54. Box Assembly 
55. Handle, Outside 
56. Tail Gate 
57. Headrest 
58. Fender Liner Bolt 
59. Headrest 
60. Fender Liner Bolt 
61. Air Deflector Bolt 
62. Hood Molding Clip 
63. Molding Clip 
64. Rear Insulator Seal 65. License Plate Bracket Rivet 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
