Frame for 2021 GMC Sierra 1500
1. Assist Steps, Work Steps, Black 
2. Frame Assembly 
3. Lock Pillar Trim 
4. Inner Windshield Pillar 
5. Uniside Assembly 
6. Body A-Pillar Trim Panel 
7. Body B-Pillar 
8. Mount Cushion 
9. Inner Center Pillar 
10. Cowl Grille 
11. Body A-Pillar Reinforcement 
12. Inner Lock Pillar 
13. Inner Rocker 
14. Inner Lock Pillar 
15. Trailer Hitch 
16. Left 
17. Right 
18. Splash Shield Bolt 
19. Uniside Assembly 
20. Body A-Pillar Trim Panel 
21. Windshield Pillar Trim 
22. Body A-Pillar Trim Panel 
23. Windshield Pillar Trim 
24. Body A-Pillar 
25. Inner Center Pillar 
26. Molded Assist Steps, Black 
27. Outer Rail 
28. Step Bar Assembly 
29. Cowl Water Deflector No.
Part # / Description / Price
Price
2
$25.52
2
$24.10
3
Driver Side Hood Rear Outer Air Inlet Seal 
GM
GM Positions: Left
Description: Double cab. Crew cab. Regular cab. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $29.05
$21.00
MSRP $29.05
$21.00
3
Passenger Side Hood Rear Outer Air Inlet Seal GM
GM Positions: Right
Description: Double cab. Crew cab. Regular cab. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $29.05
$21.00
MSRP $29.05
$21.00
4
MSRP $19.79
$13.55
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
$27.39
MSRP $39.89
$27.39
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 $245.71
$162.08
MSRP $245.71
$162.08
7
MSRP $10.19
$7.37
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
$33.30
MSRP $48.49
$33.30
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
$136.49
MSRP $206.92
$136.49
11
Dash Panel Bracket GM
GM Positions: Right
Description: Crew cab. Double cab. Regular cab.
MSRP $8.20
$5.93
MSRP $8.20
$5.93
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
$5.93
MSRP $8.20
$5.93
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
$14.77
MSRP $20.43
$14.77
14
Upper Extension GM
GM Positions: Right
Description: Crew cab. Double cab. Regular cab.
MSRP $20.43
$14.77
MSRP $20.43
$14.77
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
$14.77
MSRP $20.43
$14.77
15
Lower Extension GM
GM Positions: Right
Description: Crew cab. Double cab. Regular cab.
MSRP $20.43
$14.77
MSRP $20.43
$14.77
16
MSRP $68.81
$47.25
17
Sill Panel GM
GM Positions: Left
Description: Crew cab. Regular cab. Double cab. type 2.
MSRP $94.06
$62.89
MSRP $94.06
$62.89
17
MSRP $94.06
$62.89
18
MSRP $21.46
$15.52
18
MSRP $20.93
$15.13
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
$10.33
MSRP $14.29
$10.33
21
Passenger Side Body Hinge Pillar Sound Barrier GM
GM Positions: Right
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 $8.12
$5.87
MSRP $8.12
$5.87
21
Driver Side Body Hinge Pillar Sound Barrier GM
GM Positions: Left
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
$9.42
MSRP $13.03
$9.42
22
Dash Panel Inner Insulator GM
GM Description: Crew cab, 4.3, 5.3, 6.2L. Crew cab, inner, 6.6L gas. Double cab, inner, 6.6L gas. Regular cab.
$96.67
$96.67
22
Insulator GM
GM Positions: Outer
Description: Crew cab, outer, 4.3, 5.3, 6.2L. Double cab, outer, 4.3, 5.3, 6.2L. Regular cab, outer.
$67.25
$67.25
