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Buick Rainier Thermostats

Keeping your Rainier in top shape is your top priority.

It's not all the time that you find yourself in need of a replacement Thermostats to fix your car or truck. Obviously, you didn't buy your Rainier unless you understood you would be getting efficiency and fun both impeccably combined into one car, truck, or SUV. Your Buick dealership isn't the only place to find trusted repair parts to fix your Rainier. Anyone who operates a Buick knows that when it comes to fixing their vehicle only the most superior replacement parts will do.

What Thermostats does for your vehicle.

Your car or truck has a liquid-cooled engine, and the device that controls the flow of coolant so that the engine can remain cool is your thermostat. On start-up, the thermostat remains closed; shutting off access to the radiator. This gets the coolant hot so that the engine warms up. Once it reaches an optimal operating temperature, your Buick Rainier thermostat then opens up and allows the coolant into the radiator. Now your coolant is part of a constant cycle in your Buick Rainier engine that keeps it at a steady and controlled temperature determined for the engine to achieve the best balance between power, fuel efficiency, and emissions... all thanks to the thermostat.

The leading brand name parts .

Select Your YearGiven all the hassles associated with performing maintenance on your car or truck, let www.carpartsdiscount.com be the number one store you go to make purchasing it easy. Don't let a Thermostats repair spell the end of your car, truck, or SUV, and don't risk lowering its resale value by installing anything but the best repair parts. Bring your Rainier back to life with the highest quality new or rebuilt parts from the experts at Car Parts Discount. Just choose your year from the list below to find the right Buick Rainier Thermostats for your 2007, 2006, 2005, 2004 model.

Select Your Year

Buick Rainier Engine Coolant Thermostat, OEM: 12T121D
ACDelco Engine Coolant Thermostat 12T121D
16.43, Save 49%   NEW ITEM POPULAR
OEM: 12T121D, Item: 885144
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 5.3L 5328CC 325Cu. In. V8
Buick Rainier Engine Coolant Thermostat, OEM: 14659
Stant Engine Coolant Thermostat 14659
20.55, Save 39%  
OEM: 14659, Item: 383640
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 4.2L 4195CC 256Cu. In. L6
Buick Rainier Engine Coolant Thermostat, OEM: 14948
Stant Engine Coolant Thermostat 14948
5.75, Save 40%  
OEM: 14948, Item: 383664
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 5.3L 5328CC 325Cu. In. V8
Buick Rainier Engine Coolant Thermostat, OEM: 131-156/131156
ACDelco Engine Coolant Thermostat 131-156
18.05, Save 39%   NEW ITEM
OEM: 131-156, Item: 887733
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 5.3L 5328CC 325Cu. In. V8
Buick Rainier Engine Coolant Thermostat, OEM: 15158
Stant Engine Coolant Thermostat 15158
15.75, Save 39%   NEW ITEM
OEM: 15158, Item: 403089
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 5.3L 5328CC 325Cu. In. V8
Buick Rainier Thermostat, OEM: 812572988082
Motorad Thermostat 812572988082
33.25, Save 39%   NEW ITEM
OEM: 812572988082, Item: 90072
8 In Stock, Usually ships within 1 business day

Buick Rainier, 4.2L 4195CC 256Cu. In. L6
Buick Rainier Thermostat, 82C / 180F, OEM: 812571261082
Motorad Thermostat, 82C / 180F 812571261082
21.95, Save 39%   NEW ITEM
OEM: 812571261082, Item: 90070
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 5.3L 5328CC 323Cu. In. V8
Buick Rainier Engine Coolant Thermostat Kit, OEM: 131-160/131160
ACDelco Engine Coolant Thermostat Kit 131-160
33.85, Save 39%   NEW ITEM
OEM: 131-160, Item: 887735
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 5.3L 5328CC 325Cu. In. V8
Buick Rainier Engine Coolant Thermostat / Water Inlet Assembly, OEM: 15-11006/1511006
ACDelco Engine Coolant Thermostat / Water Inlet Assembly 15-11006
33.55, Save 39%   NEW ITEM
OEM: 15-11006, Item: 885397
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 4.2L 4195CC 256Cu. In. L6
Buick Rainier Engine Coolant Thermostat/Water Outlet Assembly, OEM: 14659
Stant Engine Coolant Thermostat/Water Outlet Assembly 14659
22.05, Save 39%   NEW ITEM
OEM: 14659, Item: 1201335
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 4.2L 4195CC 256Cu. In. L6