Radiator & Components for 2025 Cadillac CT5
1. Inlet Hose 
2. Block Heater 
3. Drain Plug 
4. Inter-cooler 
5. Upper Bracket Bolt 
6. Reservoir Cap 
7. Reservoir Cap 
8. Upper Baffle Bolt 
9. Radiator Support Access Cover Bolt 
10. Radiator Support Baffle Bolt 
11. Reservoir Cap 
12. Reservoir Cap 
13. Reservoir Cap 
14. Reservoir Cap 
15. Reservoir Cap 
16. Reservoir Cap 
17. Reservoir Cap 
18. Reservoir Cap 
19. Reservoir Cap 
20. Reservoir Cap 
21. Reservoir Cap 
22. Reservoir Cap 
23. Reservoir Cap 
24. Reservoir Cap 
25. Reservoir Cap 26. Lower Hose Clamp No.
Part # / Description / Price
Price
1
Inlet Hose 
GM
GM Positions: Left
Description: Auxiliary radiator. CT5. Left. Outlet.
MSRP $67.93
$52.98
MSRP $67.93
$52.98
1
Inlet Hose GM
GM Positions: Right
Description: Auxiliary radiator. CT5. Right. Inlet.
MSRP $89.24
$66.40
MSRP $89.24
$66.40
2
Radiator Outlet Hose GM
GM Positions: Left
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $63.34
$49.40
MSRP $63.34
$49.40
2
Auxiliary Radiator Outlet Pipe GM
GM Positions: Right
Description: Auxiliary radiator. CT5. Right. Outlet. Awd. Allows coolant to move through your vehicle's cooling system
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
MSRP $67.76
$50.21
MSRP $67.76
$50.21
2
Auxiliary Radiator Inlet Hose GM
GM Positions: Right
Description: Auxiliary radiator. CT5. Right. Inlet. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $49.78
$38.83
MSRP $49.78
$38.83
2
Radiator Inlet Hose GM
GM Description: Auxiliary radiator. CT5. Left. Inlet. Helps maintain optimal temperatures
Designed to withstand high temperatures
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $22.86
$17.84
MSRP $22.86
$17.84
2
Auxiliary Radiator Outlet Hose GM
GM Positions: Left
Description: Auxiliary radiator. CT5. Left. Outlet. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $60.91
$45.12
MSRP $60.91
$45.12
2
Radiator Inlet Hose GM
GM Positions: Right
Description: 3.0L twin-turbo, main radiator. CT5. Helps maintain optimal temperatures
Designed to withstand high temperatures
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $60.53
$44.85
MSRP $60.53
$44.85
2
Auxiliary Radiator Outlet Pipe GM
GM Positions: Left
Description: Auxiliary radiator. CT5. Right. Outlet. Rwd. Allows coolant to move through your vehicle's cooling system
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $28.12
$21.94
MSRP $28.12
$21.94
2
Radiator Inlet Pipe GM
GM Description: Allows coolant to move through your vehicle's cooling system
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
.
MSRP $16.84
$13.13
MSRP $16.84
$13.13
2
Lower Hose GM
GM Positions: Left
Description: CT5. 3.0L twin-turbo, main radiator, awd.
MSRP $29.95
$23.36
MSRP $29.95
$23.36
2
Lower Hose GM
GM Positions: Left
Description: CT5. 3.0L twin-turbo, main radiator, rwd.
MSRP $70.43
$54.94
MSRP $70.43
$54.94
2
Charge Air Cooler Coolant Hose GM
GM Positions: Right
Description: 3.0L twin-turbo, radiator mounted. This GM Genuine part is designed, engineered and tested to rigorous standards, and are backed by General Motors
MSRP $42.40
$27.56
MSRP $42.40
$27.56
3
Auxiliary Radiator GM
GM Positions: Left
Description: 3.0L twin-turbo, auxiliary radiator. 6.2L, auxiliary. CT5. Left.
MSRP $362.45
$266.51
MSRP $362.45
$266.51
3
Auxiliary Radiator GM
GM Positions: Right
Description: 3.0L twin-turbo, auxiliary radiator. 6.2L, auxiliary. CT5. Right.
MSRP $284.40
$209.16
MSRP $284.40
$209.16
4
Multi-Purpose Bolt GM
GM Positions: Left
Notes: PARTS: Part included with auxiliary radiator.
Description: 2.0L turbo, driver side. At4, slt, denali upper components. 2.7L turbo, auxiliary. 3.0L twin-turbo, auxiliary radiator. 2.7L turbo, rwd. Base, sle, elevation upper components. Coupe, 8mm. Structure & components. Convertible, m8x1.25x30. Fuel tank components. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$8.63
$8.63
4
M6x16 Multi-Purpose Bolt GM
GM Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$8.07
$8.07
5
Upper Bracket GM
GM Positions: Left
Description: 3.0L twin-turbo, auxiliary radiator. 6.2L, auxiliary.
$33.27
$33.27
5
Upper Bracket GM
GM Positions: Right
Description: 3.0L twin-turbo, auxiliary radiator. 6.2L, auxiliary.
$33.27
$33.27
6
Upper Bracket Lower Insulator GM
GM Positions: Left
Notes: PARTS: Part included with upper bracket.
Description: 2.7L turbo, auxiliary. 3.0L twin-turbo, auxiliary radiator. 3.6L turbo, auxiliary. 6.2L, auxiliary.
MSRP $9.80
$9.29
MSRP $9.80
$9.29
6
Upper Bracket Lower Insulator GM
GM Positions: Upper
Description: 3.0L twin-turbo, auxiliary radiator. 2.7L turbo, auxiliary. 3.6L turbo, auxiliary. 6.2L, auxiliary.
MSRP $10.70
$10.14
MSRP $10.70
$10.14
8
Multi-Purpose Retainer GM
GM Positions: Left
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$7.86
$7.86
10
Charge Air Cooler Upper Insulator GM
GM Positions: Left
Description: 2.7L turbo, auxiliary. 3.0L twin-turbo, auxiliary radiator. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
$5.83
$5.83
11
Nut GM
GM Positions: Left
Description: Without video display mirror. 2.7L turbo, auxiliary. 3.0L twin-turbo, auxiliary radiator. 2020. 2.0L turbo 2019. Split back seats. type 1. Helps align and secure various components
For proper installation, locate your nearest GM dealer, independent service center, or body shop
Precise fit for ease of installation
$9.34
$9.34
12
Lower Bracket GM
GM Positions: Left
Description: 2.7L turbo, auxiliary. 3.0L twin-turbo, auxiliary radiator.
MSRP $55.36
$41.02
MSRP $55.36
$41.02
12
Lower Bracket GM
GM Positions: Right
Description: 2.7L turbo, auxiliary. 3.0L twin-turbo, auxiliary radiator.
MSRP $73.64
$54.56
MSRP $73.64
$54.56
14
$23.95
14
$23.97
