Structural Components & Rails for 2019 Cadillac XT4
No.
Part # / Description / Price
Price
1
Passenger Side Front Compartment 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 $1,405.29
$905.82
MSRP $1,405.29
$905.82
2
Passenger Side Front Compartment Inner Side Rail Extension GM
GM Positions: Right
Notes: PARTS: Part included with 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
$57.85
MSRP $80.03
$57.85
2
Driver Side Front Engine Compartment Inner Rail Extension GM
GM Positions: Left
Notes: PARTS: Part included with 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
$57.85
MSRP $80.03
$57.85
3
Rail Assembly Upper Reinforced GM
GM Positions: Left
Notes: PARTS: Part included with rail assembly.
Description: 2021-23, lower rail. 2024-26, lower rail.
MSRP $31.13
$24.38
MSRP $31.13
$24.38
3
Rail Assembly Upper Reinforced GM
GM Positions: Right
Notes: PARTS: Part included with rail assembly.
Description: 2021-23, lower rail. 2024-26, lower rail.
MSRP $13.03
$10.21
MSRP $13.03
$10.21
4
Passenger Side Front Compartment 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 $649.76
$418.82
MSRP $649.76
$418.82
4
Driver Side Front Compartment 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 $565.06
$364.23
MSRP $565.06
$364.23
5
Passenger Side Brake Hose Bracket GM
GM Positions: Right
Notes: PARTS: Part included with outer rail.
Description: Lower rail. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $47.13
$30.65
MSRP $47.13
$30.65
5
Outer Rail Bracket GM
GM Positions: Left
Notes: PARTS: Part included with outer rail.
Description: 2021-23, lower rail. 2024-26, lower rail.
MSRP $26.61
$19.73
MSRP $26.61
$19.73
5
Lower Rail Extension GM
GM Positions: Right outer
Description: 2021-26, rails & components, outer.
MSRP $37.60
$29.45
MSRP $37.60
$29.45
6
Front Passenger Side Wheelhouse Panel Extension GM
GM Positions: Right
Description: Front outer. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $87.17
$63.01
MSRP $87.17
$63.01
6
$52.66
7
Rail Extension GM
GM Positions: Right
Description: 2021-23, lower rail, front inner. 2024-26, lower rail, front inner.
MSRP $403.99
$267.71
MSRP $403.99
$267.71
7
Driver Side Front Compartment Inner Side Rail Extension GM
GM Positions: Left
Description: Lower rail, front inner. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $403.99
$267.71
MSRP $403.99
$267.71
8
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
8
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
9
MSRP $40.54
$31.75
9
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 $88.98
$64.32
MSRP $88.98
$64.32
10
Rail Extension GM
GM Positions: Right
Description: 2021-23, lower rail, side lower. 2024-26, lower rail, side lower.
MSRP $78.80
$56.96
MSRP $78.80
$56.96
10
Driver Side Front Compartment Side Rail Rear Extension GM
GM Positions: Left
Description: Lower rail, side lower. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $81.36
$58.81
MSRP $81.36
$58.81
11
Driver Side Front Compartment Front Side Rail Reinforcement GM
GM Positions: Left
Description: Lower rail, #1. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $28.50
$22.32
MSRP $28.50
$22.32
11
Passenger Side Front Compartment Front Side Rail Reinforcement GM
GM Positions: Right
Description: Lower rail, #1. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $10.39
$8.14
MSRP $10.39
$8.14
12
Driver Side Front Compartment Front Side Rail Reinforcement GM
GM Positions: Left
Description: Lower rail, #2. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $81.87
$59.18
MSRP $81.87
$59.18
12
Passenger Side Front Compartment Front Side Rail Reinforcement GM
GM Positions: Right
Description: Lower rail, #2. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $37.32
$29.22
MSRP $37.32
$29.22
13
Driver Side Front Compartment Side Rail Rear Reinforcement GM
GM Positions: Left
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
13
Rail Assembly Lower Reinforced GM
GM Positions: Right
Description: 2021-23, lower rail, #3. 2024-26, lower rail, #3.
MSRP $17.68
$13.85
MSRP $17.68
$13.85