Brackets, Flanges & Hangers for 2021 GMC Sierra 1500
1. Outer Rail 
2. Frame Assembly 
3. Step Bar Assembly 
4. Fender 
5. Windshield Pillar Trim 
6. Inner Lock Pillar 
7. Uniside Assembly 
8. Roof Panel 
9. Side Panel 
10. Body B-Pillar 
11. Inner Center Pillar 
12. Headliner 
13. Sunroof Glass 
14. Park Sensor 
15. Air Bag Control Module Bracket 
16. Steering Wheel 
17. Rear Bumper 
18. Front Floor Pan 
19. Bumper Cover 
20. Headrest 
21. Inner Lock Pillar 
22. Carrier 
23. Front Panel 
24. Uniside Assembly 
25. Inner Windshield Pillar 
26. Front 
27. Headliner 
28. Lower Cover 
29. Cowl Grille 
30. Cowl Cover 
31. Headrest 
32. Tail Gate 
33. Headrest Guide 34. Seat Trim Panel Bracket No.
Part # / Description / Price
Price
1
Black Front Seat Head Restraint 
GM
GM Positions: Left
Description: Without power, cloth, seat (a52), black. Without POWER. cloth black (H1T). Helps minimize the chance of a neck injury in certain collisions
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 $139.45
$92.88
MSRP $139.45
$92.88
1
Headrest GM
GM Positions: Left
Description: With power, without ventilated, cloth, black. Without POWER. cloth black, (H0U).
MSRP $139.45
$92.88
MSRP $139.45
$92.88
1
MSRP $133.72
$89.06
1
MSRP $61.45
$42.03
2
Headrest Guide GM
GM Positions: Left
Description: Bucket-left side without executive seats. gideon. Bucket-right side without executive seats. gideon. Split bench-40% side. gideon. Split bench-60% side. gideon. With power, without ventilated. gideon.
MSRP $11.92
$8.58
MSRP $11.92
$8.58
3
MSRP $133.53
$88.93
3
Seat Back Cover GM
GM Positions: Left
Description: Without POWER. cloth, black (H1T) from 09/03/2024.
MSRP $235.88
$154.98
MSRP $235.88
$154.98
3
Seat Back Cover GM
GM Positions: Left
Description: With power, without ventilated, cloth, black, cloth, black. Without POWER. cloth, black (H0U) from 09/03/2024.
MSRP $133.29
$88.78
MSRP $133.29
$88.78
4
MSRP $135.50
$90.24
5
MSRP $182.40
$119.84
6
Cushion Cover GM
GM Positions: Left
Description: With power, without ventilated. cloth gideon.
MSRP $159.38
$106.15
MSRP $159.38
$106.15
6
MSRP $165.55
$110.26
6
Cushion Cover GM
GM Positions: Left
Description: Without POWER. cloth black (H1T).
MSRP $163.45
$108.86
MSRP $163.45
$108.86
6
Cushion Cover GM
GM Positions: Left
Description: Without POWER. cloth black (H0U).
MSRP $165.29
$110.08
MSRP $165.29
$110.08
6
Cushion Cover GM
GM Positions: Front center
Description: Center seat-ae7, black. Center seat-a52, cloth.
MSRP $144.61
$96.31
MSRP $144.61
$96.31
6
Cushion Cover GM
GM Positions: Front center
Description: Center seat-ae7, gideon. Center seat-a52, cloth, gideon.
MSRP $52.92
$36.21
MSRP $52.92
$36.21
6
Cushion Cover GM
GM Positions: Rear left
Description: Double cab, cloth, black (h1t).
MSRP $85.63
$57.03
MSRP $85.63
$57.03
6
Cushion Cover GM
GM Positions: Rear left
Description: Double cab, cloth, black (h0u).
MSRP $83.37
$55.52
MSRP $83.37
$55.52
6
MSRP $167.35
$109.95
6
Cushion Cover GM
GM Positions: Rear left
Description: Crew cab, without storage compartment, vinyl.
MSRP $196.33
$128.99
MSRP $196.33
$128.99
6
Cushion Cover GM
GM Positions: Front right
Description: Without power, cloth, black (h0u).
MSRP $159.38
$106.15
MSRP $159.38
$106.15
6
Cushion Cover GM
GM Positions: Front right
Description: Without power, cloth, gideon.
MSRP $165.38
$110.13
MSRP $165.38
$110.13
6
Cushion Cover GM
GM Positions: Rear left
Description: Crew cab, without storage compartment, cloth, black (h1t).
MSRP $193.65
$127.23
MSRP $193.65
$127.23
6
Cushion Cover GM
GM Positions: Rear left
Description: Crew cab, with storage compartment, cloth, black (h0u). With storage compartment, seat cushion, cloth, black. Crew cab without storage compartment. cloth black.
MSRP $105.48
$70.25
MSRP $105.48
$70.25
6
Cushion Cover GM
GM Positions: Rear left
Description: With storage compartment, seat cushion, cloth, gideon. Crew cab without storage compartment. cloth gideon.
MSRP $193.65
$127.23
MSRP $193.65
$127.23
6
Cushion Cover GM
GM Positions: Front right
Description: Without POWER. vinyl black.
MSRP $165.50
$110.22
MSRP $165.50
$110.22
6
Cushion Cover GM
GM Positions: Front right
Description: Without POWER. cloth black (H1T).
MSRP $153.36
$102.14
MSRP $153.36
$102.14
7
Seat Cushion Pad GM
GM Positions: Front left
Description: With power, without ventilated, without haptic alert.
MSRP $137.44
$91.53
MSRP $137.44
$91.53
8
Support Spring GM
GM Positions: Left
Description: Frames & shields, manual, without vented. With power, with ventilated, with massage, seat back. Without POWER. seat back.
MSRP $12.39
$8.93
MSRP $12.39
$8.93
10
MSRP $147.98
$98.56
10
Seat Track GM
GM Positions: Front left
Description: With POWER, without VENTILATED. with cushion frame without memory pkg.
MSRP $305.50
$200.71
MSRP $305.50
$200.71
11
Jet Black Front Seat Adjuster Handle GM
GM Positions: Left
Description: Without power, 2-way. Without power. black. Helps adjust seat position
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 $13.05
$9.40
MSRP $13.05
$9.40
11
MSRP $11.00
$7.92
11
Jet Black Front Seat Adjuster Handle GM
GM Positions: Front right
Description: Without power, with 2-way lumbar. Without power. black. Helps adjust seat position
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 $13.05
$9.40
MSRP $13.05
$9.40
11
MSRP $10.84
$7.80
12
MSRP $81.22
$55.56
12
MSRP $25.31
$18.23
12
Outer Finish Panel GM
GM Positions: Front left outer
Description: With power, without ventilated. black.
MSRP $26.42
$19.02
MSRP $26.42
$19.02
12
Outer Finish Panel GM
GM Positions: Front left outer
Description: With power, without ventilated. gideon.
MSRP $25.00
$18.00
MSRP $25.00
$18.00
12
Outer Finish Panel GM
GM Positions: Front left outer
Description: With power, without ventilated. atmosphere.
MSRP $24.39
$17.56
MSRP $24.39
$17.56
13
Outer Finish Panel Retainer GM
GM Positions: Left
Description: Without power. Without performance seat, frames & shields, #2. With ventilated, with power bolster, rear.
MSRP $11.61
$8.36
MSRP $11.61
$8.36
14
MSRP $17.53
$12.62
14
MSRP $10.44
$7.51
14
MSRP $10.44
$7.51
15
Jet Black Front Seat Adjuster Finish Cover Bolt Cap GM
GM Positions: Left
Description: Without power, with 2-way lumbar. Front driver seat. Manual seat. Without flat-folding seat. Without power. black. Installed in your vehicle's seat back recliner adjustment handle 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 $13.05
$9.40
MSRP $13.05
$9.40
15
MSRP $8.28
$5.96
16
Jet Black Driver Seat Inner Adjuster Front Finish Cover GM
GM Positions: Left
Description: With power, with heated, 2-way lumbar. With ventilated, with power bolster. With power, with ventilated. black. With heated. black. Driver seat. black. Passenger seat. black. Protects the seat track from debris
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 $12.43
$8.95
MSRP $12.43
$8.95
16
Gideon Driver Seat Inner Adjuster Front Finish Cover GM
GM Positions: Left
Description: With power, with ventilated. gideon. Without power. gideon. Protects the seat track from debris
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 $9.36
$6.73
MSRP $9.36
$6.73
17
Jet Black Driver Seat Inner Recliner Finish Cover GM
GM Positions: Left
Description: Seat cushion, with vented. Without ventilated, without power bolster, outboard. With ventilated, with power bolster, inboard. With power, with ventilated. outer black. Without POWER. outer black. With power, without ventilated. inner black. With HEATED. inner black. With HEATED. outer black. DRIVER SEAT. outer black. Passenger seat. outer black. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $11.19
$8.05
MSRP $11.19
$8.05
17
Recline Cover GM
GM Positions: Left
Description: With power, with ventilated, gideon. Without POWER. inner gideon. Without POWER. outer gideon.
MSRP $10.19
$7.33
MSRP $10.19
$7.33
17
MSRP $8.41
$6.06
18
Recline Cover GM
GM Positions: Left
Description: Without POWER. inner gideon. Without POWER. outer gideon.
MSRP $10.44
$7.51
MSRP $10.44
$7.51
19
Driver Seat Wiring Harness GM
GM Positions: Left
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $85.13
$55.32
MSRP $85.13
$55.32