Frame for 2026 GMC Sierra 2500 HD
1. 6-Inch Rectangular Assist Steps, Chrome 
2. Mount Cushion 
3. Inner Center Pillar 
4. Outer Rail 
5. Inner Lock Pillar 
6. Body A-Pillar 
7. Frame Assembly 
8. Mount Cushion 
9. Body A-Pillar 
10. Uniside Assembly 
11. Uniside Assembly 
12. Front 
13. Inner Center Pillar 
14. Inner Lock Pillar 
15. Body B-Pillar 
16. Inner Windshield Pillar 
17. Side Cover 
18. Body B-Pillar 
19. Windshield Pillar Trim 
20. Rear 
21. Floor Extension 
22. Floor Sill 
23. Running Board 
24. Running Board 
25. Running Board 
26. Body A-Pillar Trim Panel 
27. Running Board 
28. Running Board 
29. Body A-Pillar Trim Panel 
30. Body A-Pillar Trim Panel 
31. Running Board 
32. Running Board 
33. Left 
34. Left 
35. Body A-Pillar Trim Panel 
36. 4-Inch Round Assist Steps - Chrome - Crew Cab 
37. Left 
38. Inner Center Pillar 
39. Front 
40. Fender 
41. Right 
42. Right 
43. Inner Rocker Assembly 
44. Extension Panel 
45. Floor Extension 
46. Floor Extension 
47. Sill Panel 
48. Cowl Grille 49. Body C-Pillar Trim Panel No.
Part # / Description / Price
Price
2
Driver Side Air Inlet Grille Panel Extension 
GM
GM Positions: Left
Description: Helps define the appearance of your vehicle's air inlet grille
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 $39.08
$26.13
MSRP $39.08
$26.13
2
Passenger Side Air Inlet Grille Panel Extension GM
GM Positions: Right
Description: Helps define the appearance of your vehicle's air inlet grille
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 $39.67
$26.53
MSRP $39.67
$26.53
3
Driver Side Hood Rear Outer Air Inlet Seal GM
GM Positions: Left
Description: Helps ensure a tight seal for your vehicle's hood
For proper installation, locate your nearest GM dealer, independent service center, or body shop
Precise fit for ease of installation
MSRP $31.09
$21.54
MSRP $31.09
$21.54
3
Passenger Side Hood Rear Outer Air Inlet Seal GM
GM Positions: Right
Description: Helps ensure a tight seal for your vehicle's hood
For proper installation, locate your nearest GM dealer, independent service center, or body shop
Precise fit for ease of installation
MSRP $31.09
$21.54
MSRP $31.09
$21.54
4
MSRP $19.79
$12.98
5
Air Inlet Deflector Water Deflector GM
GM Description: Crew cab. Double cab. Regular cab. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $39.89
$26.67
MSRP $39.89
$26.67
6
Plenum Front Panel Outer Reinforcement GM
GM Description: Crew cab. Double cab. Regular cab. Helps secure and support your vehicle's cowl panel
For proper installation, locate your nearest GM dealer, independent service center, or body shop
Precise fit for ease of installation
MSRP $546.69
$362.26
MSRP $546.69
$362.26
8
Plenum Upper Panel GM
GM Description: Crew cab. Double cab. Regular cab. Helps define the structure of your vehicle's cowl plenum
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 $48.49
$32.42
MSRP $48.49
$32.42
9
Plenum Lower Panel GM
GM Description: Crew cab. Double cab. Regular cab. Helps define the structure of your vehicle's cowl plenum
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 $206.92
$137.12
MSRP $206.92
$137.12
11
Dash Panel Bracket GM
GM Positions: Right
Description: Crew cab. Double cab. Regular cab.
MSRP $8.20
$5.68
MSRP $8.20
$5.68
12
Driver Side Dash Panel Bracket GM
GM Positions: Left
Description: Crew cab. Double cab. Regular cab. Helps align and secure your vehicle's dash panel
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $8.20
$5.68
MSRP $8.20
$5.68
14
Driver Side Dash Panel Side Extension GM
GM Positions: Left
Description: Crew cab. Double cab. Regular cab. Completes the appearance of your vehicle's cowl panel
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 $20.43
$14.16
MSRP $20.43
$14.16
14
Upper Extension GM
GM Positions: Right
Description: Crew cab. Double cab. Regular cab.
MSRP $20.43
$14.16
MSRP $20.43
$14.16
15
Driver Side Dash Panel Side Extension GM
GM Positions: Left
Description: Crew cab. Double cab. Regular cab. Completes the appearance of your vehicle's cowl panel
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 $20.43
$14.16
MSRP $20.43
$14.16
15
Lower Extension GM
GM Positions: Right
Description: Crew cab. Double cab. Regular cab.
MSRP $20.43
$14.16
MSRP $20.43
$14.16
16
MSRP $68.81
$46.01
17
MSRP $94.06
$62.33
17
Sill Panel GM
GM Positions: Left
Description: Crew cab. Regular cab. Double cab. type 2.
MSRP $94.06
$62.33
MSRP $94.06
$62.33
18
MSRP $21.46
$14.87
18
MSRP $20.93
$14.50
19
Underbody Inner Front Side Rail GM
GM Positions: Left
Description: Crew cab. Double cab. Regular cab. Helps strengthen and support your vehicle's underbody
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 $14.29
$9.90
MSRP $14.29
$9.90
21
$6.95
22
Driver Side Body Hinge Pillar Sound Barrier GM
GM Positions: Front left inner
Description: Crew cab. Regular cab, inner. Double cab. inner. Helps dampen road noise
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 $13.03
$9.03
MSRP $13.03
$9.03
