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Chevrolet Trailblazer Oxygen Sensor Reviews
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Shop Chevrolet Trailblazer Replacement Oxygen Sensor

When it comes to value, consumers can't go wrong with Chevrolet, a solid producer of long-lasting and innovative vehicles. You need to purchase a vehicle that's sure to be reliable for a long time and you can rely on a genuine Chevrolet. For choosy consumers with refined tastes Chevrolet vehicles feature prestigious looks and high end technology. A reliable Chevrolet vehicle gives a great merging of long life and modest pricetag. All the smart drivers like you understand how to find the highest value for their dollar when buying Chevrolet Trailblazer replacement parts. Preserve your car's critical components by buying only the best high quality engine components. Your vehicle's Chevrolet Trailblazer Oxygen Sensor tracks the fuel to air proportion by analyzing it to provide best mileage. Your oxygen sensor operates in partnership with your vehicle's CPU to decide whether or not your fuel vapor fed to the engine needs to be altered. Chevrolet Trailblazer Oxygen Sensors are necessary devices that are used in the exhaust to maximize gas mileage. When you picked your Chevrolet Trailblazer, you were buying a car or truck of high quality and outstanding looks; you should protect your investment by choosing the highest-quality parts and accessories.

We stock these Oxygen Sensor brands for the Chevrolet Trailblazer: ReplacementDensoBoschAC DelcoNGKAPIDIY SolutionsStandard Motor Products

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Review Fitment Notes
Showing 22 of 413 Results
Replacement Oxygen Sensor - for 2005 Chevrolet Trailblazer 4.2L 6 Cyl - 903-050 Click to Enlarge
4.5 Stars
Replacement 903-050
Oxygen Sensor
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Part Number: 903-050
Brand: Replacement
Notes: OE Style -- 4 Wire; Direct Fit; Correct Connector; No cutting or splicing; Correct wire length (22.8 inches or 580mm)
Product Remark: O2 OXYGEN SENSOR
Condition: New
Shipping Options: Free Ground Shipping
$32.95
with FREE Shipping
(36) In Stock
This Part Fits:
Catalog: E
Vehicle Engine Position
2005 Chevrolet Trailblazer 4.2L 6 Cyl Downstream
Upstream Denso Oxygen Sensor - for 2006 Chevrolet Trailblazer - 234-4331 Click to Enlarge
5 Stars
Denso 234-4331
Oxygen Sensor
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Part Number: 234-4331
Brand: Denso
Notes: OE Style -- DENSO is the O.E. Manufacturer / Oxygen Sensor
Position: Upstream
Condition: New
Sensor Type: Heated
Shipping Options: Ground
$40.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle
2006 Chevrolet Trailblazer
Upstream Denso Oxygen Sensor - for 2004 Chevrolet Trailblazer - 234-4119 Click to Enlarge
5 Stars
Denso 234-4119
Oxygen Sensor
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Part Number: 234-4119
Brand: Denso
Notes: OE Style -- O.E. Quality Replacement Sensor
Position: Upstream
Condition: New
Sensor Type: Heated
Shipping Options: Ground
$39.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle
2004 Chevrolet Trailblazer
Upstream Bosch Oxygen Sensor - for 2006 Chevrolet Trailblazer 4.2L 6 Cyl - 15131 Click to Enlarge
4.8 Stars
Bosch 15131
Oxygen Sensor
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Part Number: 15131
Brand: Bosch
Notes: Engineered Oxygen Sensor
  • Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
  • Direct Fit includes OE Connector for easy installation
  • Performance meets or exceeds OE specifications
  • True Direct-fit OE connectors and harness
Position: Upstream
Condition: New
Shipping Options: Ground
$44.43
(7) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2006 Chevrolet Trailblazer 4.2L 6 Cyl
Upstream Denso Oxygen Sensor - for 2005 Chevrolet Trailblazer - 234-4119 Click to Enlarge
5 Stars
Denso 234-4119
Oxygen Sensor
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Part Number: 234-4119
Brand: Denso
Notes: OE Style -- O.E. Quality Replacement Sensor
Position: Upstream
Condition: New
Sensor Type: Heated
Shipping Options: Ground
$39.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle
2005 Chevrolet Trailblazer
Upstream AC Delco Oxygen Sensor - for 2004 Chevrolet Trailblazer 4.2L 6 Cyl LL8 VIN: S - 213-1698 Click to Enlarge
5 Stars
AC Delco 213-1698
Oxygen Sensor
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Part Number: 213-1698
Brand: AC Delco
Notes: Oxygen Sensor -- New; IN EXHAUST MANIFOLD
Position: Upstream
Condition: New
Shipping Options: Ground
$54.43
(8) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2004 Chevrolet Trailblazer 4.2L 6 Cyl LL8 VIN: S
Downstream Denso Oxygen Sensor - for 2004 Chevrolet Trailblazer - 234-4285 Click to Enlarge
4.8 Stars
Denso 234-4285
Oxygen Sensor
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Part Number: 234-4285
Brand: Denso
Notes: OE Style -- O.E. Quality Replacement Sensor
Position: Downstream
Condition: New
Sensor Type: Heated
Shipping Options: Ground
$33.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle
2004 Chevrolet Trailblazer
Downstream Denso Oxygen Sensor - for 2006 Chevrolet Trailblazer - 234-4348 Click to Enlarge
Website Reviews
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Part Number: 234-4348
Brand: Denso
Notes: OE Style -- O.E. Quality Replacement Sensor
Position: Downstream
Condition: New
Sensor Type: Heated
Shipping Options: Ground
$38.43
(29) In Stock
This Part Fits:
Catalog: B
Vehicle
2006 Chevrolet Trailblazer
Upstream AC Delco Oxygen Sensor - for 2002 Chevrolet Trailblazer 4.2L 6 Cyl LL8 VIN: S - 213-1551 Click to Enlarge
Website Reviews
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Part Number: 213-1551
Brand: AC Delco
Notes: Oxygen Sensor -- New; IN EXHAUST MANIFOLD/CROSSOVER
Position: Upstream
Condition: New
Shipping Options: Ground
$54.43
(8) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2002 Chevrolet Trailblazer 4.2L 6 Cyl LL8 VIN: S
Downstream Bosch Oxygen Sensor - for 2004 Chevrolet Trailblazer 4.2L 6 Cyl - 15894 Click to Enlarge
5 Stars
Bosch 15894
Oxygen Sensor
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Part Number: 15894
Brand: Bosch
Notes: Engineered Oxygen Sensor
  • Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
  • Direct Fit includes OE Connector for easy installation
  • Performance meets or exceeds OE specifications
  • True Direct-fit OE connectors and harness
Position: Downstream
Condition: New
Shipping Options: Ground
$31.43
(98) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2004 Chevrolet Trailblazer 4.2L 6 Cyl
Upstream AC Delco Oxygen Sensor - for 2005 Chevrolet Trailblazer 4.2L 6 Cyl LL8 VIN: S - 213-1698 Click to Enlarge
5 Stars
AC Delco 213-1698
Oxygen Sensor
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Part Number: 213-1698
Brand: AC Delco
Notes: Oxygen Sensor -- New; IN EXHAUST MANIFOLD
Position: Upstream
Condition: New
Shipping Options: Ground
$54.43
(8) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2005 Chevrolet Trailblazer 4.2L 6 Cyl LL8 VIN: S
Downstream Denso Oxygen Sensor - for 2005 Chevrolet Trailblazer - 234-4285 Click to Enlarge
4.8 Stars
Denso 234-4285
Oxygen Sensor
Loading Reviews...
Part Number: 234-4285
Brand: Denso
Notes: OE Style -- O.E. Quality Replacement Sensor
Position: Downstream
Condition: New
Sensor Type: Heated
Shipping Options: Ground
$33.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle
2005 Chevrolet Trailblazer
Downstream Bosch Oxygen Sensor - for 2005 Chevrolet Trailblazer 4.2L 6 Cyl - 15894 Click to Enlarge
5 Stars
Bosch 15894
Oxygen Sensor
Loading Reviews...
Part Number: 15894
Brand: Bosch
Notes: Engineered Oxygen Sensor
  • Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
  • Direct Fit includes OE Connector for easy installation
  • Performance meets or exceeds OE specifications
  • True Direct-fit OE connectors and harness
Position: Downstream
Condition: New
Shipping Options: Ground
$31.43
(98) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2005 Chevrolet Trailblazer 4.2L 6 Cyl
Upstream Denso Oxygen Sensor - for 2007 Chevrolet Trailblazer - 234-4331 Click to Enlarge
5 Stars
Denso 234-4331
Oxygen Sensor
Loading Reviews...
Part Number: 234-4331
Brand: Denso
Notes: OE Style -- DENSO is the O.E. Manufacturer / Oxygen Sensor
Position: Upstream
Condition: New
Sensor Type: Heated
Shipping Options: Ground
$40.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle
2007 Chevrolet Trailblazer
Upstream Bosch Oxygen Sensor - for 2007 Chevrolet Trailblazer 4.2L 6 Cyl - 15131 Click to Enlarge
4.8 Stars
Bosch 15131
Oxygen Sensor
Loading Reviews...
Part Number: 15131
Brand: Bosch
Notes: Engineered Oxygen Sensor
  • Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
  • Direct Fit includes OE Connector for easy installation
  • Performance meets or exceeds OE specifications
  • True Direct-fit OE connectors and harness
Position: Upstream
Condition: New
Shipping Options: Ground
$44.43
(7) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2007 Chevrolet Trailblazer 4.2L 6 Cyl
Downstream NGK Oxygen Sensor - for 2005 Chevrolet Trailblazer 4.2L 6 Cyl - 21044 Click to Enlarge
5 Stars
NGK 21044
Oxygen Sensor
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Part Number: 21044
Brand: NGK
Notes: Direct Fit Oxygen Sensor -- B1S2; OE Manufacturer: NTK
  • NTK is constantly improving sensor designs to provide excellent performance and improve resistance to failure. NTK works with their OEM manufacturers through each phase of development from concept to production.
  • NTK oxygen sensors are equipped with OEM specified connectors and attaching hardware for easy installation. Dual-coated platinum element to increase longevity and ensure the quickest response time.
  • NTK oxygen sensors heat up rapidly to meet requirements of the vehicle to improve fuel economy and reduce emissions. NTK's proprietary ceramic element overcoat protects against sensor failure.
Position: Downstream
Condition: New
Shipping Options: Ground
$25.98
(7) In Stock
This Part Fits:
Catalog: F
Vehicle Engine
2005 Chevrolet Trailblazer 4.2L 6 Cyl
Upstream Bosch Oxygen Sensor - for 2005 Chevrolet Trailblazer - W0133-1892861 Click to Enlarge
Website Reviews
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Part Number: W0133-1892861
Brand: Bosch
Notes: OE Connector
Position: Upstream
Condition: New
Shipping Options: Ground, Overnight, 2 Day
List Price:
$106.49
Our Price: $44.58
(7) In Stock
This Part Fits:
Catalog: A
Vehicle
2005 Chevrolet Trailblazer
Upstream Bosch Oxygen Sensor - for 2003 Chevrolet Trailblazer 4.2L 6 Cyl - 15898 Click to Enlarge
5 Stars
Bosch 15898
Oxygen Sensor
Loading Reviews...
Part Number: 15898
Brand: Bosch
Notes: Engineered Oxygen Sensor
  • Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
  • Direct Fit includes OE Connector for easy installation
  • Performance meets or exceeds OE specifications
  • True Direct-fit OE connectors and harness
Position: Upstream
Condition: New
Shipping Options: Ground
$47.08
View Details
This Part Fits:
Catalog: H
Vehicle Engine
2003 Chevrolet Trailblazer 4.2L 6 Cyl
Upstream AC Delco Oxygen Sensor - for 2005 Chevrolet Trailblazer 4.2L 6 Cyl LL8 VIN: S - 213-1698 Click to Enlarge
5 Stars
AC Delco 213-1698
Oxygen Sensor
Loading Reviews...
Part Number: 213-1698
Brand: AC Delco
Notes: Oxygen Sensor -- New; IN EXHAUST MANIFOLD
Position: Upstream
Condition: New
Shipping Options: Ground
$53.98
(1) In Stock
This Part Fits:
Catalog: T
Vehicle Engine
2005 Chevrolet Trailblazer 4.2L 6 Cyl LL8 VIN: S
Downstream Left API Oxygen Sensor - for 2006 Chevrolet Trailblazer 5.3L V8 VIN: M FI Naturally Aspirated GAS - 1900-429261 Click to Enlarge
Website Reviews
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Part Number: 18653-07516620
Brand: API
Notes: Oxygen Sensor -- Heated Sensor; 1st Design; Square Connector
Position: Downstream Left
Condition: New
Shipping Options: Ground
$33.98
(7) In Stock
This Part Fits:
Catalog: P
Vehicle Engine
2006 Chevrolet Trailblazer 5.3L V8 VIN: M FI Naturally Aspirated GAS
Upstream DIY Solutions Oxygen Sensor - for 2005 Chevrolet Trailblazer 4.2L 6 Cyl - EMS00225 Click to Enlarge
Website Reviews
Loading Reviews...
Part Number: EMS00225
Brand: DIY Solutions
Notes: Oxygen Sensor -- L6 4.2L; Upstream
  • Quality Tested - built to a strict level of product standards.
  • Direct Fit Replacement
Position: Upstream
Condition: New
Shipping Options: Free Ground Shipping
$35.95
with FREE Shipping
(20) In Stock
This Part Fits:
Catalog: Q
Vehicle Engine
2005 Chevrolet Trailblazer 4.2L 6 Cyl
Standard Motor Products Oxygen Sensor - for 2009 Chevrolet Trailblazer 4.2L 6 Cyl - SG300 Click to Enlarge
4.8 Stars
Standard Motor Products SG300
Oxygen Sensor
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Part Number: SG300
Brand: Standard Motor Products
Notes: Oxygen Sensor -- Universal Upstream
Condition: New
Shipping Options: Ground
$53.98
(1) In Stock
This Part Fits:
Catalog: N
Vehicle Engine
2009 Chevrolet Trailblazer 4.2L 6 Cyl

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Research on Oxygen Sensor for Chevrolet Trailblazer

Chevrolet Trailblazer Oxygen Sensor

The Chevrolet Trailblazer’s attractive styling and family-friendly design make your SUV a favorite vehicle. With a strong engine, this car still has a smooth quite ride. With money-saving fuel efficiency and a comfortable ride, it is a pleasure to drive; but sometimes your automobile may drop in fuel efficiency because of a faulty oxygen sensor. If this happens, you may need to replace the oxygen sensor with a quality replacement part. PartsGeek.com has a large variety of excellent parts to choose from.

What is an oxygen sensor?

The oxygen sensor, or lambda sensor, is an electronic unit used to determine the percentage of oxygen, or O2, in the emission of your car.

What is the price of an oxygen sensor?

Here at PartsGeek.com the oxygen sensors for your Chevrolet Trailblazer range in price from $30 to $55 depending on the year, make, and model of your vehicle. We have an excellent return policy of 30-day money back, and fast delivery on every order. Shop with confidence with our online catalog and know that we can fill your replacement parts needs quickly.

What are the symptoms of a bad oxygen sensor?

A faulty oxygen sensor doesn’t measure the oxygen emission levels as it was designed to do, therefore, when it fails, the sensor wrecks havoc on your engine’s efficiency. Here are a few of the possible signs of a bad oxygen sensor:

  • Rough idling
  • Engine hesitations
  • Increased consumptions of fuel
  • Misfiring engine
  • Engine stalling

What does an oxygen sensor do?

The oxygen sensor is mounted in the exhaust manifold so that it can collect data on the oxygen particles as they exit the car through the exhaust fumes. The information is relayed to the powertrain control module, and the air to fuel ratio is repeatedly adjusted as needed. The sensor supports the exhaust system, and its data helps keep the fuel injectors and engine timing in sync and working efficiently.   

Oxygen Sensors available for the following Chevrolet Trailblazer years: 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 09, 08, 07, 06, 05, 04, 03, 02. This part is also sometimes called Chevrolet Trailblazer O2 Sensor. We stock oxygen sensor parts for most Chevrolet models including Silverado 1500, Tahoe, Aveo, S10, Impala, Suburban 1500, Blazer, K1500, Silverado 2500 HD, Malibu, Camaro, C1500, Cruze, Cobalt, Corvette, Avalanche 1500, Equinox, Cavalier, Tracker, Astro, Monte Carlo, Express 1500, Silverado 2500, K1500 Suburban, Express 3500, HHR, Colorado, Traverse, C1500 Suburban, Express 2500, Aveo5, Sonic, Avalanche, Venture, Prizm, C3500, K2500, C2500, Trailblazer EXT and Silverado 1500 HD.

Chevrolet Trailblazer Oxygen Sensor Reviews
5 of 5
Verified Customer
10/20/13 03:37 AM - USA

Thank you for your great Prices and good product descriptions. - E.S.

- 2005 Chevrolet Trailblazer Oxygen Sensor
5 of 5
Verified Customer
12/20/13 08:34 AM - USA

Much Thanks Parts Geek. A friend of mine just recently stop me from paying double the amount of money for a O2 sensor. I was so not wanting to wait because I'm the type of person that when I want something I want it right then. Well he told me he would order my part anyway because he couldn't get to my truck until the weekend. So I went a head and let him order. Lord and behold. My part was here in three days. Plus like I mentioned earlier, I was able to get two of the parts for the price I would pay for 1... Thanks again Parts Geek. I'm with you all from here on out. Of course only if you all keep up the good work. - Fast Fast Fast

- 2003 Chevrolet Trailblazer Oxygen Sensor
5 of 5
Verified Customer
2/18/14 06:53 AM - USA

A good quality product with great price and with fast shipping.

Great vendor - Excellent Transaction

- 2005 Chevrolet Trailblazer Oxygen Sensor
5 of 5
Verified Customer
9/26/15 12:56 PM - USA

The part was good and arrived in a timely manner. However due to my own error I ordered auniversal part without the pigtail.

I prefer not to use this type of part as it is easy to mess up. Make sure of what you order.

My overall experince with Parts Geek was good and I would not hesitate to purchase from them in the future. - RAS 2

- 2003 Chevrolet Trailblazer Oxygen Sensor
4 of 5
Verified Customer
2/11/16 12:39 PM - USA

Worried after my engine light came on and relieved to find it seems it's just a oxygen sensor that is causing it. I can tell a difference in the way it runs though. Was happy to find that Parts Geek had the piece and I rec'd it quickly! - It can breath

- 2005 Chevrolet Trailblazer Oxygen Sensor
4 of 5
Verified Customer
4/3/16 06:28 PM - USA

Parts Geek is a professional company. Very good customer service. Arrival time and date of the item was shipped on time and no damage very great quality.I am using them again. - Eliza

- 2005 Chevrolet Trailblazer Oxygen Sensor