Radiator & Components for 2025 Cadillac CT5
1. Radiator 
2. Block Heater 
3. Upper Bracket Bolt 
4. Reservoir Cap 
5. Reservoir Cap 
6. Reservoir Cap 
7. Upper Baffle Bolt 
8. Radiator Support Access Cover Bolt 
9. Radiator Support Baffle Bolt 
10. Reservoir Cap 
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. Lower Hose Clamp No.
Part # / Description / Price
Price
1
Engine Radiator 
GM
GM Description: 2.0L turbo. CT4. CT5. Lightweight; the radiators have a positive heat transfer to weight ratio
Corrosion-resistant aluminum designed core helps optimize the radiators long lasting
Manufactured to GM OE specification for fit, form, and function
MSRP $458.33
$305.25
MSRP $458.33
$305.25
2
Radiator Upper Bracket GM
GM Positions: Left
Description: 2.0L turbo. Helps align and secure your vehicle's radiator mount
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
Collision parts are designed to help promote proper and safe repair
MSRP $21.96
$15.88
MSRP $21.96
$15.88
2
Radiator Upper Bracket GM
GM Positions: Right
Description: 2.0L turbo. Helps align and secure your vehicle's radiator mount
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
Collision parts are designed to help promote proper and safe repair
MSRP $21.96
$15.88
MSRP $21.96
$15.88
3
Radiator Upper Insulator GM
GM Positions: Left
Notes: PARTS: Part included with upper bracket.
Description: 2.0L turbo. 2.7L turbo, main. 1.3l turbo. 3.6L. 1.2L. Rear cooling, without auxiliary radiator. Front cooling. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $9.01
$6.49
MSRP $9.01
$6.49
4
Radiator Lower Insulator GM
GM Positions: Left
Description: 2.0L turbo. Radiator & hoses. 2.7L turbo, main. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $9.13
$6.23
MSRP $9.13
$6.23
5
Radiator Drain Petcock GM
GM Notes: PARTS: Part included with radiator.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $24.48
$17.63
MSRP $24.48
$17.63
7
Driver Side Upper Radiator Air Baffle GM
GM Positions: Left
Description: 2.0L turbo, side. Helps properly direct airflow
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $33.62
$23.09
MSRP $33.62
$23.09
8
Upper Radiator Air Baffle GM
GM Description: Helps properly direct airflow
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $51.29
$35.23
MSRP $51.29
$35.23
9
Lower Radiator Air Baffle GM
GM Description: 2.0L turbo. 2.7L turbo, main. Helps properly direct airflow
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $54.61
$37.51
MSRP $54.61
$37.51
10
Push-Pin GM
GM Description: Secure components with the GM Genuine Part Push-Pin, designed for a reliable hold. This essential fastener, part number 11589290, ensures a secure fit in various applications. Engineered to meet rigorous standards, this push-pin offers dependable performan ...
MSRP $5.05
$3.46
MSRP $5.05
$3.46
12
Black Diamond Multi-Purpose Retainer GM
GM Notes: PARTS: Part included with lower baffle.
Description: Enhance your vehicle's reliability with the Black Diamond Multi-Purpose Retainer, GM part number 1605396. This genuine GM part is engineered to meet rigorous standards, ensuring a secure fit for various components. Designed for durability and long-lasting ...
MSRP $10.36
$7.49
MSRP $10.36
$7.49
12
Push-Pin GM
GM Description: Secure components with the GM Genuine Part Push-Pin, designed for reliable fastening. This essential fastener ensures a snug fit, providing stability and preventing unwanted movement. Ideal for various applications, the Push-Pin offers a durable solution f ...
MSRP $8.01
$5.47
MSRP $8.01
$5.47
13
Multi-Purpose Nut GM
GM Notes: PARTS: Part included with lower baffle.
Description: Secure your components with the GM Genuine Part Multi-Purpose Nut, part number 11548579. This essential fastener, engineered to exacting standards, ensures a secure fit for various applications. Whether for routine maintenance or specific repairs, this nut ...
MSRP $8.81
$6.02
MSRP $8.81
$6.02
14
Driver Side Radiator Air Baffle GM
GM Positions: Left
Description: 2.0L turbo. 2.7L turbo, main. Helps properly direct airflow
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $51.88
$35.63
MSRP $51.88
$35.63
14
Passenger Side Radiator Air Baffle GM
GM Positions: Right
Description: 2.0L turbo. 2.7L turbo, main. Helps properly direct airflow
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $42.51
$29.20
MSRP $42.51
$29.20
16
Radiator Hose Clamp GM
GM Description: 5.3, 6.2L, front. Main, front, with hd cooling. 3.0L twin-turbo, main radiator. 3.0L diesel, rear. 2.7L turbo, front. 4.3L, front. Helps prevent leaks
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $4.67
$3.36
MSRP $4.67
$3.36
19
Radiator Surge Tank GM
GM Description: 2.0L turbo. 2.7L turbo. 3.0L twin-turbo, main radiator. CT4. CT5. Helps maintain optimal engine operating temperatures
Designed to contain excess or an expansion of coolant
When needed, helps circulate more coolant into the coolant system
This GM Genuine part is designed, engineered and tested to rigorous standards, and are backed by General Motors
MSRP $40.08
$27.42
MSRP $40.08
$27.42
20
Multi-Purpose Insulator GM
GM Notes: PARTS: Part included with reservoir tank.
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $8.41
$6.06
MSRP $8.41
$6.06
22
Radiator Surge Tank Inlet Hose GM
GM Description: 2.0L turbo. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $20.30
$14.62
MSRP $20.30
$14.62
23
Multi-Purpose Hose Clamp GM
GM Description: 3.0L twin-turbo, main radiator. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $6.57
$4.74
MSRP $6.57
$4.74
23
Multi-Purpose Clamp GM
GM Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $12.52
$6.57
MSRP $12.52
$6.57
24
Engine Coolant Temperature Sensor GM
GM Notes: PARTS: Part included with radiator.
Description: Helps keep engine running at proper temperature
Alerts vehicle operator of high engine temperature conditions
MSRP $13.26
$7.96
MSRP $13.26
$7.96