Hardware, Fasteners & Fittings for 2021 Cadillac XT4
1. Tail Lamp 
2. Headlamp Assembly 
3. Vehicle Battery 
4. Starter 
5. Door Trim Panel 
6. Door Trim Panel 
7. Headlamp Assembly Bolt 
8. Signal Lamp 
9. Backup Lamp 
10. Rear 
11. Lamp Assembly Bolt 
12. Right 
13. Headlamp Assembly Bolt 
14. Fog Lamp Bolt 
15. Headlamp Assembly Bolt 
16. Headlamp Assembly Bolt 
17. Tail Lamp Assembly Bolt 
18. Headlamp Assembly Bolt 
19. Lamp Assembly Bolt 
20. Right 
21. Alternator 
22. Signal Lamp Assembly Bolt 
23. Tail Lamp Bolt 
24. Tail Lamp Bolt 
25. Headlamp Assembly Bolt 
26. Headlamp Assembly Bolt 
27. Headlamp Assembly Bolt 
28. Left 
29. Headlamp Assembly Bolt 
30. High Mount Lamp 
31. Headlamp Assembly Bolt 
32. Left 
33. Headlamp Assembly Bolt 
34. Headlight Mounting Bolt 35. Instrument Panel Air Bag Bolt No.
Part # / Description / Price
Price
1
Black Rear Driver Side Door Trim 
GM
GM Positions: Left
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: Helps conceal your vehicle's door components, seals, and moisture barriers
Enhances the appearance of your vehicle
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 $536.05
$351.98
MSRP $536.05
$351.98
1
Door Trim Panel GM
GM Positions: Right
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: Without ambient lighting, with surround sound, black/platinum.
MSRP $535.58
$351.68
MSRP $535.58
$351.68
1
Black Rear Driver Side Door Trim GM
GM Positions: Left
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: Helps conceal your vehicle's door components, seals, and moisture barriers
Enhances the appearance of your vehicle
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 $363.29
$239.64
MSRP $363.29
$239.64
1
Door Trim Panel GM
GM Positions: Left
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: Without ambient lighting, without surround snd, black.
MSRP $658.57
$432.44
MSRP $658.57
$432.44
1
Door Trim Panel GM
GM Positions: Right
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: Without ambient lighting, without surround snd, black/platinum.
MSRP $362.63
$239.20
MSRP $362.63
$239.20
1
Door Trim Panel GM
GM Positions: Right
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: Without ambient lighting, without surround snd, black.
MSRP $657.54
$431.76
MSRP $657.54
$431.76
1
Door Trim Panel GM
GM Positions: Left
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, with surround sound, black/sedona.
MSRP $426.74
$281.49
MSRP $426.74
$281.49
1
Door Trim Panel GM
GM Positions: Left
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, without surround sound, black/sedona.
MSRP $585.17
$384.24
MSRP $585.17
$384.24
1
Door Trim Panel GM
GM Positions: Right
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, with surround sound, black/sedona.
MSRP $426.21
$281.14
MSRP $426.21
$281.14
1
Door Trim Panel GM
GM Positions: Right
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, without surround sound, black/sedona.
$389.18
$389.18
1
Door Trim Panel GM
GM Positions: Left
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, without surround sound, black.
MSRP $570.77
$374.79
MSRP $570.77
$374.79
1
Door Trim Panel GM
GM Positions: Right
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, without surround sound, black.
1
Door Trim Panel GM
GM Positions: Left
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, with surround sound, black.
MSRP $562.52
$369.37
MSRP $562.52
$369.37
1
Door Trim Panel GM
GM Positions: Right
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, with surround sound, black.
MSRP $702.73
$461.43
MSRP $702.73
$461.43
1
Black Rear Driver Side Door Trim GM
GM Positions: Left
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: Helps conceal your vehicle's door components, seals, and moisture barriers
Enhances the appearance of your vehicle
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 $558.19
$366.52
MSRP $558.19
$366.52
1
Door Trim Panel GM
GM Positions: Right
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, with surround sound, black/platinum.
MSRP $609.34
$400.11
MSRP $609.34
$400.11
1
Black Rear Driver Side Door Trim GM
GM Positions: Left
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: Helps conceal your vehicle's door components, seals, and moisture barriers
Enhances the appearance of your vehicle
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 $578.01
$379.54
MSRP $578.01
$379.54
1
Door Trim Panel GM
GM Positions: Right
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, without surround sound, black/platinum.
MSRP $577.61
$379.28
MSRP $577.61
$379.28
1
Door Trim Panel GM
GM Positions: Left
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, without surround sound, black/cinnamon.
MSRP $595.91
$391.29
MSRP $595.91
$391.29
1
Door Trim Panel GM
GM Positions: Right
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, without surround sound, black/cinnamon.
MSRP $605.35
$397.49
MSRP $605.35
$397.49
1
Door Trim Panel GM
GM Positions: Left
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, without surround sound, black/wheat.
MSRP $626.67
$411.49
MSRP $626.67
$411.49
1
Door Trim Panel GM
GM Positions: Right
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, without surround sound, black/wheat.
MSRP $752.23
$493.93
MSRP $752.23
$493.93
1
Door Trim Panel GM
GM Positions: Left
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, with surround sound, black/cinnamon.
MSRP $596.40
$391.62
MSRP $596.40
$391.62
1
Door Trim Panel GM
GM Positions: Right
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, with surround sound, black/cinnamon.
MSRP $439.37
$289.82
MSRP $439.37
$289.82
1
Door Trim Panel GM
GM Positions: Left
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, with surround sound, black/wheat.
MSRP $754.06
$495.13
MSRP $754.06
$495.13
1
Door Trim Panel GM
GM Positions: Right
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: With ambient lighting, with surround sound, black/wheat.
MSRP $753.82
$494.98
MSRP $753.82
$494.98
1
Door Trim Panel GM
GM Positions: Left
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: Without ambient lighting, with surround sound, black.
$391.96
$391.96
1
Door Trim Panel GM
GM Positions: Right
Notes: PARTS: Part number listed is for estimating purposes only. Contact your local dealer for specific pricing information.
Description: Without ambient lighting, with surround sound, black.
$397.95
$397.95
2
Multi-Purpose Retainer GM
GM Positions: Left
Notes: PARTS: Part included with door trim panel.
Description: Sedan,. #1. Coupe,. Premium sound system. Performance sound system. Used to secure multiple components
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $11.74
$8.48
MSRP $11.74
$8.48
2
Multi-Purpose Retainer GM
GM Description: Extended cab, yellow. Birds beak. Without round head. Coupe,. #4. #2. Type 1. Lower qtr trim,retainer. Crew cab. yellow. Used to secure multiple components
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $11.97
$8.65
MSRP $11.97
$8.65
4
M4.2x1.4x20 Multi-Purpose Bolt GM
GM Positions: Left
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $3.25
$2.22
MSRP $3.25
$2.22
4
M4.2x1.4x20 Multi-Purpose Bolt GM
GM Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $3.30
$2.26
MSRP $3.30
$2.26
5
Multi-Purpose Nut GM
GM Positions: Left
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $8.61
$5.89
MSRP $8.61
$5.89
7
Lock Knob Bezel GM
GM Positions: Left
Notes: PARTS: Part serviced with door trim panel.
MSRP $5.89
$4.26
MSRP $5.89
$4.26
12
Switch Panel GM
GM Positions: Right
Notes: PARTS: Part included with door trim panel.
MSRP $55.11
$37.85
MSRP $55.11
$37.85
12
Switch Panel GM
GM Positions: Left
Notes: PARTS: Part included with door trim panel.
MSRP $19.14
$13.84
MSRP $19.14
$13.84
14
$27.42
14
Trim Molding GM
GM Positions: Right
Notes: PARTS: Part included with door trim panel.
MSRP $26.81
$19.38
MSRP $26.81
$19.38
15
Switch GM
GM Positions: Left
Notes: PARTS: Part included with door trim panel.
Description: XT5. XT6. XT4.
$35.26
$35.26
15
Switch GM
GM Positions: Rear
Description: With pwr fold mirror. XT5. Without luxury. XT6. Right. Surround sound. Without base. XT4. Premium luxury. Sport.
$40.53
$40.53
16
Front Center Radio Speaker GM
GM Positions: Front lower center
Description: Center, without surround sound. CT4. Front. Enhanced audio. CT5. Without bose. Instrument panel. GM-recommended replacement part for your GM vehicle's original factory speaker
MSRP $29.20
$17.51
MSRP $29.20
$17.51
16
Radio Speaker GM
GM Positions: Front lower outer
Description: Silverado, Sierra 2500 HD. Bose premium system. Outer, with surround sound. SPEAKERS. with Bose audio. XT6. Quarter. GM-recommended replacement part for your GM vehicle's original factory speaker
MSRP $16.40
$9.84
MSRP $16.40
$9.84
16
Front Dr Speaker GM
GM Positions: Center front
Description: Equinox, Terrain. Uqa, xm26, xn26. XT4. Front door speaker. With surround sound. 2016-20.
MSRP $73.76
$42.04
MSRP $73.76
$42.04
16
Rear Side Door Speaker GM
GM Description: Without surround sound. GM-recommended replacement part for your GM vehicle's original factory speaker
MSRP $50.92
$29.02
MSRP $50.92
$29.02
16
Front Door Radio Speaker GM
GM Positions: Center front
Description: Without surround sound. GM-recommended replacement part for your GM vehicle's original factory speaker
MSRP $63.43
$36.16
MSRP $63.43
$36.16
16
Inst Panel Speaker GM
GM Positions: Front lower center
Description: Premium audio system. Blazer. Instrument panel speaker. XT4. With surround sound. XT5. Enclave. Front speaker. Labeled 84019242. Center.
MSRP $36.28
$21.77
MSRP $36.28
$21.77
16
MSRP $30.52
$18.31
16
Inst Panel Speaker GM
GM Positions: Front lower outer
Description: XT4. Instrument panel. Outer. Without surround sound.
MSRP $24.76
$14.86
MSRP $24.76
$14.86
16
Rear Side Door Speaker GM
GM Description: Restores the sound quality of your audio system
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $121.61
$67.49
MSRP $121.61
$67.49
17
Rear Passenger Side Door Lock Wiring Harness GM
GM Positions: Right
Notes: PARTS: Part included with door trim panel.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $39.35
$25.58
MSRP $39.35
$25.58
17
Rear Passenger Side Door Wiring Harness GM
GM Positions: Right
Notes: PARTS: Part included with door trim panel.
Description: With ambient lighting, without surround sound. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $41.49
$26.96
MSRP $41.49
$26.96
17
Rear Passenger Side Door Lock Wiring Harness GM
GM Positions: Right
Notes: PARTS: Part included with door trim panel.
Description: Without ambient lighting, with surround sound. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $44.16
$28.69
MSRP $44.16
$28.69
17
Rear Driver Side Door Wiring Harness GM
GM Positions: Left
Notes: PARTS: Part included with door trim panel.
Description: With ambient lighting, without surround sound. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $42.11
$27.37
MSRP $42.11
$27.37
17
Rear Driver Side Door Lock Wiring Harness GM
GM Positions: Left
Notes: PARTS: Part included with door trim panel.
Description: Without ambient lighting, with surround sound. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $42.11
$27.37
MSRP $42.11
$27.37
17
Rear Driver Side Door Lock Wiring Harness GM
GM Positions: Left
Notes: PARTS: Part included with door trim panel.
Description: With ambient lighting, with surround sound. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $44.63
$29.00
MSRP $44.63
$29.00
17
Rear Driver Side Door Lock Wiring Harness GM
GM Positions: Left
Notes: PARTS: Part included with door trim panel.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $52.75
$34.27
MSRP $52.75
$34.27
17
Rear Passenger Side Door Lock Wiring Harness GM
GM Positions: Right
Notes: PARTS: Part included with door trim panel.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $50.17
$32.60
MSRP $50.17
$32.60
18
Rear Driver Side Door Water Deflector GM
GM Positions: Left
Description: Helps properly guide water away from your vehicle's interior components
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $8.12
$5.87
MSRP $8.12
$5.87
19
Rear Passenger Side Door Window Inner Sealing Strip GM
GM Positions: Right
Description: Helps filter contaminants and large elements from your vehicle's door
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $11.01
$7.96
MSRP $11.01
$7.96
