How to replace the coolant reservoir on Buick Rainier?

The replacement procedure of a Coolant Reservoir begins with removing both the air cleaner assembly and accumulator unit. Begin by disconnecting the coolant hoses from the Coolant Reservoir while using suitable plugs for blocking both hoses and reservoir outlets. Start by unfastening the nut and bolt which secures the Coolant Reservoir before you can withdraw the reservoir itself from its position. Set the Coolant Reservoir in place before you install its bolt with torque set to 12 nm (106 inch lbs.). Install the Coolant Reservoir nut afterward and tighten it to 10 nm (89 inch lbs.). After reconnecting the coolant hose to the Coolant Reservoir, reinstall the accumulator followed by the air cleaner assembly.

OEM Buick Rainier Coolant Reservoir

Coolant Tank Reservoir

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3 Coolant Reservoirs found

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Buick Rainier Transmission Cooler
Part Number: 89022555
$27.26 MSRP: $158.73
You Save: $131.47 (83%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Tank; Tank Kit, Radiator
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2007 Buick Rainier | CXL, CXL Plus | 8 Cyl 5.3 L GAS
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Buick Rainier Transmission Cooler
Part Number: 89022552
$115.28 MSRP: $172.32
You Save: $57.04 (34%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Tank; Tank Kit, Radiator
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2007 Buick Rainier | CXL, CXL Plus | 6 Cyl 4.2 L GAS
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Buick Rainier Reservoir Tank
Part Number: 25780737
Product Specifications
- Other Name: Reservoir, Coolant Recovery; Coolant Reservoir; Reservoir; Reservoir, Engine Coolant Recovery
- Replaces: 15884833, 15144777, 15762761
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2007 Buick Rainier | CXL, CXL Plus | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS

Buick Rainier Coolant Reservoir

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Buick Rainier Coolant Reservoir Parts Questions & Experts Answers

Transmission Cooler
89022552
Q: How to replace the coolant reservoir on Buick Rainier?
A: The replacement procedure of a Coolant Reservoir begins with removing both the air cleaner assembly and accumulator unit. Begin by disconnecting the coolant hoses from the Coolant Reservoir while using suitable plugs for blocking both hoses and reservoir outlets. Start by unfastening the nut and bolt which secures the Coolant Reservoir before you can withdraw the reservoir itself from its position. Set the Coolant Reservoir in place before you install its bolt with torque set to 12 nm (106 inch lbs.). Install the Coolant Reservoir nut afterward and tighten it to 10 nm (89 inch lbs.). After reconnecting the coolant hose to the Coolant Reservoir, reinstall the accumulator followed by the air cleaner assembly.