Brackets, Flanges & Hangers for 2018 Buick Regal Sportback
1. Apron Assembly 
2. Rear Floor Pan 
3. Rail Assembly 
4. Upper Tie Bar 
5. Fender 
6. Fender Mtg Bkt 
7. Rear Floor Pan 
8. Aperture Panel 
9. Instrument Panel 
10. Seat Back Cover 
11. Headliner 
12. Sunroof Glass 
13. Headrest 
14. Upper Support 
15. Lift Gate 
16. Floor Pan 
17. Cowl Grille 
18. Seat Back Cover 
19. Headrest 
20. Catalytic Converter 
21. Bumper Cover 
22. Cushion Cover 
23. Cushion Cover 
24. Headrest No.
Part # / Description / Price
Price
2
Driver Side Front Compartment Side Rail Bracket 
GM
GM Positions: Left
Notes: PARTS: Part included rail assembly.
Description: Lower rail. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $13.84
$13.18
MSRP $13.84
$13.18
2
Rail Assembly Front Bracket GM
GM Positions: Right
Notes: PARTS: Part included rail assembly.
Description: Lower rail.
MSRP $9.73
$9.26
MSRP $9.73
$9.26
3
Rail Assembly Rear Bracket GM
GM Positions: Right
Notes: PARTS: Part included rail assembly.
Description: Lower rail.
MSRP $9.45
$8.99
MSRP $9.45
$8.99
4
Driver Side Front Engine Compartment Inner Rail Extension GM
GM Positions: Left
Notes: PARTS: Part included rail assembly.
Description: Lower rail. Front center. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $80.03
$59.78
MSRP $80.03
$59.78
4
Passenger Side Front Compartment Inner Side Rail Extension GM
GM Positions: Right
Notes: PARTS: Part included rail assembly.
Description: Lower rail. Front center. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $80.03
$59.78
MSRP $80.03
$59.78
4
Front Passenger Side Wheelhouse Panel Extension GM
GM Positions: Front right outer
Description: Front outer. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $87.17
$65.11
MSRP $87.17
$65.11
4
$54.41
5
Rail Assembly Upper Reinforced GM
GM Positions: Left
Notes: PARTS: Part included rail assembly.
Description: 2021-23, lower rail. 2024-26, lower rail.
MSRP $31.13
$24.38
MSRP $31.13
$24.38
5
Rail Assembly Upper Reinforced GM
GM Positions: Right
Notes: PARTS: Part included rail assembly.
Description: 2021-23, lower rail. 2024-26, lower rail.
MSRP $13.03
$12.40
MSRP $13.03
$12.40
6
Driver Side Front Compartment Side Rail Rear Reinforcement GM
GM Positions: Left
Notes: PARTS: Part serviced with rail assembly.
Description: Lower rail, #3. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $21.08
$16.51
MSRP $21.08
$16.51
6
Rail Assembly Lower Reinforced GM
GM Positions: Right
Notes: PARTS: Part serviced with rail assembly.
Description: 2021-23, lower rail, #3. 2024-26, lower rail, #3.
MSRP $17.68
$13.85
MSRP $17.68
$13.85
9
Driver Side Front Engine Compartment Inner Rail Extension GM
GM Positions: Left
Description: Front inner. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $79.13
$59.11
MSRP $79.13
$59.11
9
Passenger Side Front Compartment Inner Side Rail Extension GM
GM Positions: Right
Description: Front inner. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $79.13
$59.11
MSRP $79.13
$59.11
9
Driver Side Front Compartment Front Side Rail Reinforcement GM
GM Positions: Front left inner
Description: Lower rail. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $31.41
$24.60
MSRP $31.41
$24.60
11
Driver Side Floor Panel Number 1 Cross Bar Reinforcement GM
GM Positions: Left
Description: Center-lower. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $21.46
$16.81
MSRP $21.46
$16.81
11
Passenger Side Floor Panel Number 1 Cross Bar Extension GM
GM Positions: Right
Description: Center-lower. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $19.49
$15.26
MSRP $19.49
$15.26
12
Driver Side Front Compartment Outer Side Rail Extension GM
GM Positions: Left
Description: Lower rail, side upper. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $27.12
$21.24
MSRP $27.12
$21.24
12
Passenger Side Front Compartment Outer Side Rail Extension GM
GM Positions: Right
Description: Lower rail, side upper. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $26.34
$20.63
MSRP $26.34
$20.63
13
Driver Side Front Compartment Side Rail Rear Extension GM
GM Positions: Left
Description: Lower rail, side lower. Rear lower. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $52.71
$41.28
MSRP $52.71
$41.28
13
Passenger Side Front Compartment Side Rail Rear Extension GM
GM Positions: Right
Description: Lower rail, side lower. Rear lower. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $48.90
$38.30
MSRP $48.90
$38.30
14
Driver Side Front Engine Compartment Front Rail Reinforcement GM
GM Positions: Left
Description: Lower rail. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $31.87
$24.96
MSRP $31.87
$24.96
14
Passenger Side Front Compartment Front Side Rail Reinforcement GM
GM Positions: Right
Description: Lower rail. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $25.88
$20.27
MSRP $25.88
$20.27
15
Driver Side Front Compartment Outer Side Rail GM
GM Positions: Left
Description: Lower rail. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $46.35
$36.30
MSRP $46.35
$36.30
15
Passenger Side Front Compartment Outer Side Rail GM
GM Positions: Right
Description: Lower rail. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $47.08
$36.87
MSRP $47.08
$36.87
16
Upper Reinforced Bracket GM
GM Positions: Left
Description: Lower rail. Apron assembly.
MSRP $55.99
$43.85
MSRP $55.99
$43.85
16
Rail Assembly Brace GM
GM Positions: Right
Description: Lower rail. 2024-26, apron assembly.
MSRP $53.67
$42.03
MSRP $53.67
$42.03
17
Underbody Rear Side Rail GM
GM Positions: Rear left
Description: Sportback, 5-link suspension. Tourx. 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
17
Rear Underbody Side Rail GM
GM Positions: Rear left
Description: Sportback, 4-link suspension. 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 $56.97
$44.62
MSRP $56.97
$44.62
18
MSRP $66.78
$52.30
18
MSRP $60.72
$47.55
19
Driver Side Front Compartment Side Rail Bracket GM
GM Positions: Left
Description: Lower rail. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $9.26
$8.82
MSRP $9.26
$8.82
20
Passenger Side Front Compartment Front Side Rail Reinforcement GM
GM Positions: Right
Description: Lower rail. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $31.41
$24.60
MSRP $31.41
$24.60
21
Driver Side Front Compartment Side Rail Plate GM
GM Positions: Left
Description: Lower rail. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $10.39
$9.89
MSRP $10.39
$9.89
21
Passenger Side Front Compartment Side Rail Plate GM
GM Positions: Right
Description: Lower rail. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $10.16
$9.67
MSRP $10.16
$9.67
22
Passenger Side Front End Sheet Metal Diagonal Brace Reinforcement GM
GM Positions: Right
Description: Lower rail. Helps reinforce and align your vehicle's radiator support panel reinforcement
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $11.35
$10.81
MSRP $11.35
$10.81
22
Driver Side Front End Sheet Metal Diagonal Brace Reinforcement GM
GM Positions: Left
Description: Lower rail. Helps reinforce and align your vehicle's radiator support panel reinforcement
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $11.19
$10.65
MSRP $11.19
$10.65