Coolant Reservoir for 2025 Cadillac CT4
No.
Part # / Description / Price
Price
1
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
$28.14
MSRP $40.08
$28.14
2
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 $8.21
$5.77
MSRP $8.21
$5.77
3
Radiator Surge Tank Bracket GM
GM Description: 2.0L turbo. 2.7L turbo. Helps align and secure your vehicle's engine coolant reservoir
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 $13.38
$9.40
MSRP $13.38
$9.40
4
Radiator Surge Tank Clip GM
GM Notes: PARTS: Part included with reservoir tank.
Description: 2.7L turbo. Can be used in various automotive applications
Helps secure components to help prevent damage
MSRP $6.51
$4.57
MSRP $6.51
$4.57
6
Radiator Surge Tank Overflow Hose GM
GM Notes: PARTS: Part included with reservoir tank.
Description: 2.0L turbo. 2.7L turbo. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $8.52
$5.98
MSRP $8.52
$5.98
7
Heater Outlet Hose GM
GM Positions: Right
Description: 2.7L turbo. CT4. Outlet. 2.7l. Helps provide heat to the vehicle interior
Constructed from high quality material for a long service life
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
MSRP $39.17
$26.13
MSRP $39.17
$26.13
8
Heater Inlet Hose GM
GM Positions: Left
Description: 2.7L turbo. CT4. Inlet. 2.7l. Helps provide heat to the vehicle interior
Constructed from high quality material for a long service life
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
MSRP $20.26
$13.51
MSRP $20.26
$13.51
11
Radiator Surge Tank Inlet Hose GM
GM Description: 2.7L turbo. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $44.65
$31.34
MSRP $44.65
$31.34
12
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 $12.22
$7.15
MSRP $12.22
$7.15
13
Multi Purpose Clamp GM
GM Description: Helps prevent leaks
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $15.50
$10.88
MSRP $15.50
$10.88
14
Radiator Surge Tank Inlet Hose GM
GM Description: 2.7L turbo. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $40.00
$28.08
MSRP $40.00
$28.08
15
Radiator Surge Tank Inlet Pipe Bracket GM
GM Description: 2.7L turbo. Aligns and secures engine coolant pipe
This GM Genuine part is designed, engineered and tested to rigorous standards, and are backed by General Motors
MSRP $7.49
$5.27
MSRP $7.49
$5.27
16
Radiator Surge Tank Inlet Hose GM
GM Description: 2.7L turbo. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $55.77
$39.15
MSRP $55.77
$39.15
19
Engine Coolant Air Bleeder Valve Assembly GM
GM Notes: PARTS: Part included with hose.
Description: 2.7L turbo. 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
MSRP $23.08
$13.50
MSRP $23.08
$13.50