Seats for 2021 GMC Sierra 3500 HD
1. Headrest 
2. Headrest 
3. Headrest, Outer 
4. Seat Cushion Pad 
5. Outer Belt Assembly 
6. Headrest Guide 
7. Headrest Guide 
8. Outer Belt Assembly 
9. Headrest Guide 
10. Headrest Guide 
11. Seat Belt Lap And Shoulder Belt 
12. Outer Belt Assembly 
13. Headrest Guide 
14. Headrest Guide 
15. Headrest Guide 
16. Headrest Guide 
17. Seat Back Frame 
18. Seat Back Frame 
19. Headrest Guide 
20. Seat Back Frame 
21. Front right 
22. Cushion Cover 
23. Front left 
24. Headrest Guide 
25. Lumbar Support 
26. Headrest Guide 
27. Headrest Guide 
28. Lumbar Support 
29. Seat Back Cushion Spring 
30. Headrest Guide 
31. Headrest Guide 
32. Headrest Guide 
33. Headrest Guide 
34. Outer Belt Assembly 
35. Front center 
36. Front right 
37. Seat Back Recliner Adjustment Mechanism Cover 
38. Front left inner 
39. Recline Cover 
40. Seat Back Recliner Adjustment Mechanism Cover 41. Power Seat Switch Knob No.
Part # / Description / Price
Price
1
Lap & Shoulder Belt 2 
GM
GM Positions: Right
Description: Silverado, Sierra 2500 HD. Front. Right. Silverado, Sierra 3500 HD. Double & crew cab, 2020-23, atmosphere.
MSRP $204.76
$141.85
MSRP $204.76
$141.85
1
Outer Belt Assembly 2 GM
GM Positions: Left
Description: Silverado, Sierra 2500 HD. Front. Left. Silverado, Sierra 3500 HD. Double & crew cab, black, all. Double & crew cab, black, with high country.
$184.52
$184.52
1
Outer Belt Assembly 2 GM
GM Positions: Left
Description: Silverado, Sierra 2500 HD. Front. Left. Silverado, Sierra 3500 HD. Double & crew cab, 2020-23, atmosphere.
$184.52
$184.52
1
Outer Belt Assembly 2 GM
GM Positions: Right
Description: Silverado, Sierra 2500 HD. Front. Right. Silverado, Sierra 3500 HD. Double & crew cab, black, all. Double & crew cab, black, with high country.
$184.39
$184.39
2
Tensioner GM
GM Positions: Left
Description: Left. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Tahoe. Suburban. Front. Yukon. Escalade. Black.
MSRP $156.89
$108.69
MSRP $156.89
$108.69
2
Tensioner GM
GM Positions: Left
Description: Left. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Front. Yukon. Double & crew cab, 2020-23, atmosphere.
MSRP $141.63
$98.12
MSRP $141.63
$98.12
2
Tensioner GM
GM Positions: Right
Description: Right. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Tahoe. Suburban. Front. Yukon. Escalade. Black.
MSRP $156.89
$108.69
MSRP $156.89
$108.69
2
Tensioner GM
GM Positions: Right
Description: Right. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Front. Yukon. Atmosphere.
MSRP $146.88
$101.75
MSRP $146.88
$101.75
3
Jet Black Front Seat Belt Anchor Plate Tensioner Cover GM
GM Positions: Left
Description: Convertible. Double & crew cab. black. Coupe. 1st design. Regular cab. black. Helps enhance the vehicle's interior look
Molded to an exact fit, no modifications required
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 $8.65
$6.75
MSRP $8.65
$6.75
3
Tensioner Upper Cover GM
GM Positions: Left
Description: Double & crew cab. atmosphere.
MSRP $8.28
$6.46
MSRP $8.28
$6.46
4
Lower Center Pillar Trim Cover GM
GM Positions: Left
Description: Double cab, 2020-23, 2024-26 pro, black. Crew cab, 2020-23, 2024-26 wt, custom, black. Crew cab, 2020-23, 2024-26, work truck, black. Double & crew cab, 2020-23, black. Crew cab, 2020-23, 2024-26 pro, black. Double & crew cab, 2024-26, black. Crew cab, pillar & floor-front, 2024-26 lt, ltz, zr2, high country, black. Crew cab, pillar & floor-front, 2024-26, sle, slt, at4, denali, black. Regular cab. Crew cab 2019-22 2023-26 with t custom custom tb pillars & floor-front. black.
$6.75
$6.75
4
Upper Center Pillar Trim Cover GM
GM Positions: Upper
Description: Double cab, 2019-22, 2023-26 with t custom custom tb, #1, atmosphere. Double cab, 2020-23, 2024-26 pro, #1, atmosphere. Regular cab, pillars & floor, atmosphere. Crew cab, 2020-23, 2024-26 pro, #1, atmosphere. Crew cab, 2020-23, 2024-26 wt, custom, #1, atm ...
MSRP $12.73
$9.97
MSRP $12.73
$9.97
4
Upper Center Pillar Trim Cover GM
GM Description: Double cab, 2020-23, 2024-26 pro, #2, gray. Double cab, 2019-22, 2023-26 with t custom custom tb, #2, gray. Crew cab, 2020-23, 2024-26 pro, #2, gray. Crew cab, 2020-23, 2024-26, work truck, #2, gray. Double cab, 2020-23, 2024-26 wt, custom, #2, gray. Crew cab, 2020-23, 2024-26 wt, custom, #2, gray. Double cab, 2020-23, 2024-26, work truck, #2, gray. Crew cab 2019-22 2023-26 with t custom custom tb pillars & floor-front. #2 gray.
MSRP $8.42
$6.59
MSRP $8.42
$6.59
4
Upper Center Pillar Trim Cover GM
GM Description: Double cab, 2019-22, 2023-26 with t custom custom tb, #2, atmosphere. Double cab, 2020-23, 2024-26 pro, #2, atmosphere. Crew cab, 2020-23, 2024-26 pro, #2, atmosphere. Crew cab, 2020-23, 2024-26 wt, custom, #2, atmosphere. Crew cab, 2020-23, 2024-26, work truck, #2, atmosphere. Double cab, 2020-23, 2024-26, work truck, #2, atmosphere. Crew cab 2019-22 2023-26 with t custom custom tb pillars & floor-front. #2 atmosphere.
4
Upper Center Pillar Trim Cover GM
GM Description: Double cab 2019-22 2023-26 with t custom custom tb pillars & floor-front. #2 gray. Crew cab, 2020-23, 2024-26 pro, #2, gray. Double cab, 2020-23, 2024-26 wt, custom, #2, gray. Double cab, 2020-23, 2024-26, work truck, #2, gray. Crew cab, 2020-23, 2024-26 wt, custom, #2, gray. Double cab, 2020-23, 2024-26 pro, #2, gray. Crew cab, 2020-23, 2024-26, work truck, #2, gray. Crew cab 2019-22 2023-26 with t custom custom tb pillars & floor-front. #2 gray.
MSRP $8.42
$6.59
MSRP $8.42
$6.59
4
Upper Center Pillar Trim Cover GM
GM Description: Double cab, 2020-23, 2024-26 pro, #2, atmosphere. Crew cab, 2020-23, 2024-26 pro, #2, atmosphere. Crew cab, 2020-23, 2024-26, work truck, #2, atmosphere. Double cab, 2020-23, 2024-26 wt, custom, #2, atmosphere. Crew cab, 2020-23, 2024-26 wt, custom, #2, atmosphere. Crew cab 2019-22 2023-26 with t custom custom tb pillars & floor-front. #2 atmosphere.
4
Upper Center Pillar Trim Cover GM
GM Positions: Upper
Description: Double cab, 2020-23, 2024-26 pro, #1, gray. Double cab, 2019-22, 2023-26 with t custom custom tb, #1, gray. Crew cab, 2020-23, 2024-26 pro, #1, gray. Crew cab, 2020-23, 2024-26 wt, custom, #1, gray. Double cab, 2020-23, 2024-26 wt, custom, #1, gray. Crew cab, 2020-23, 2024-26, work truck, #1, gray. Crew cab 2019-22 2023-26 with t custom custom tb pillars & floor-front. #1 gray. Regular cab pillars & floor.
MSRP $8.42
$6.59
MSRP $8.42
$6.59
5
F Buckle Kit GM
GM Positions: Right
Description: Silverado, Sierra 2500 HD. Front. Right. Silverado, Sierra 3500 HD. Tahoe. Suburban. Yukon. Double & crew cab. atmosphere.
$88.17
$88.17
5
Outer Buckle GM
GM Positions: Left
Description: Front. Left. Buckle. Silverado, Sierra 2500 HD. Double & crew cab, black, without ppv. Silverado, Sierra 3500 HD. Double & crew cab, 2020-23, black. Double & crew cab, 2024-26, black. Regular cab.
$100.60
$100.60
5
Outer Buckle GM
GM Positions: Left
Description: Front. Left. Buckle. Double & crew cab, atmosphere. Silverado, Sierra 3500 HD. Silverado, Sierra 2500 HD.
$99.07
$99.07
6
Seat Belt Lap And Shoulder Belt GM
GM Description: Front. Center. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Tahoe. Suburban. With pre-crash. Yukon. Black.
$90.54
$90.54
6
Seat Belt Lap And Shoulder Belt GM
GM Description: Front. Center. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Tahoe. Suburban. With pre-crash. Yukon. Atmosphere.
MSRP $45.95
$35.98
MSRP $45.95
$35.98
7
Center Buckle GM
GM Description: Front. Center. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Tahoe. Suburban. Yukon. Black.
MSRP $137.50
$95.25
MSRP $137.50
$95.25
7
Center Buckle GM
GM Description: Front. Center. Silverado, Sierra 2500 HD. Silverado, Sierra 3500 HD. Regular cab, atmosphere. Double & crew cab, 2024-26, atmosphere. Double & crew cab, 2020-23, atmosphere.
MSRP $19.82
$15.52
MSRP $19.82
$15.52
2 This part contains hazardous materials. Extra shipping costs apply.