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Buick Rainier Oxygen Sensor

Why you drive your Rainier.

Buick car, truck, or SUV enthusiasts have grown accustomed to a certain level of reliability when driving their Rainier around town. It's not a regular occurrence that you realize that you have to buy a replacement Oxygen Sensor for your car or truck. Anyone who drives a Buick knows that when it comes to repairing their vehicle only the absolute best replacement parts will do. Obviously, you bought your Rainier because you knew that you wanted a variety of special features and fun both rolled up into one car, truck, or SUV.

The function and purpose of Oxygen Sensor.

Getting the most out of your car or truck depends on your use of properly functioning air and fuel delivery parts. The fuel-injection system on your Buick Rainier is runs on signals sent by your ECU which uses data collected by your oxygen sensors. Your Buick Rainier oxygen sensors sit in the exhaust manifold, exhaust pipes, and catalytic converter and analyze the quality of the exhaust gases to determine how well your fuel delivery and emissions reduction parts are working. When oxygen sensors fail your car will not get the best fuel economy or produce enough horsepower, and it will likely be emitting an excess of hazardous exhaust.

Good products, great prices, the best people.

Select Your YearWhen your Buick needs a top quality replacement Oxygen Sensor, there's no need to waste time looking anywhere other than the authority, Car Parts Discount. At Car Parts Discount, we have real customer support agents here with enough expertise to help you select the correct Buick Rainier part for your needs. Bring your Rainier back to life with the best repair parts from the experts at Car Parts Discount. All the Buick Rainier Oxygen Sensor parts on this page will fit vehicles made in 2007, 2006, 2005, 2004. Choose your year below to refine your search.

Select Your Year

Buick Rainier Oxygen Sensor, OEM: 234-4209/2344209
Denso Oxygen Sensor 234-4209
34.05, Save 39%   POPULAR
OEM: 234-4209, Item: 21557
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 5.3L 5328CC 323Cu. In. V8
Buick Rainier Oxygen Sensor Universal, OEM: SG300
SMP Oxygen Sensor Universal SG300
53.05, Save 39%   NEW ITEM
OEM: SG300, Item: 318162
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 4.2L 4195CC 256Cu. In. L6
Buick Rainier, 5.3L 5328CC 323Cu. In. V8
Buick Rainier, 5.3L 5328CC 325Cu. In. V8
Buick Rainier Oxygen Sensor, OEM: 234-4668/2344668
Denso Oxygen Sensor 234-4668
26.15, Save 39%  
OEM: 234-4668, Item: 19430
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 5.3L 5328CC 323Cu. In. V8
Buick Rainier Oxygen Sensor, OEM: 234-4650/2344650
Denso Oxygen Sensor 234-4650
34.15, Save 39%   NEW ITEM
OEM: 234-4650, Item: 19574
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 5.3L 5328CC 323Cu. In. V8
Buick Rainier Oxygen Sensor, OEM: 234-4212/2344212
Denso Oxygen Sensor 234-4212
33.35, Save 39%  
OEM: 234-4212, Item: 21532
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 5.3L 5328CC 323Cu. In. V8
Buick Rainier Oxygen Sensor, OEM: ES20094
Delphi Oxygen Sensor ES20094
49.35, Save 39%   NEW ITEM
OEM: ES20094, Item: 112927
1 In Stock, Usually ships within 1 business day

Buick Rainier, 5.3L 5328CC 325Cu. In. V8
Buick Rainier Oxygen Sensor, OEM: 234-4285/2344285
Denso Oxygen Sensor 234-4285
32.05, Save 39%   NEW ITEM
OEM: 234-4285, Item: 21043
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 4.2L 4195CC 256Cu. In. L6
Buick Rainier, 5.3L 5328CC 325Cu. In. V8
Buick Rainier Oxygen Sensor, OEM: 234-4647/2344647
Denso Oxygen Sensor 234-4647
39.95, Save 39%   NEW ITEM
OEM: 234-4647, Item: 19615
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 5.3L 5328CC 323Cu. In. V8
Buick Rainier Oxygen Sensor, OEM: 234-4331/2344331
Denso Oxygen Sensor 234-4331
38.05, Save 39%   NEW ITEM
OEM: 234-4331, Item: 20833
10 or More In Stock, Usually ships within 1 business day

Buick Rainier, 4.2L 4195CC 256Cu. In. L6
Buick Rainier Oxygen Sensor, OEM: 234-4119/2344119
Denso Oxygen Sensor 234-4119
33.15, Save 39%   NEW ITEM
OEM: 234-4119, Item: 22362
10 or More In Stock, Usually ships within 1 business day

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