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Get the Best Priced Chevrolet Trailblazer EXT Oxygen Sensor

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Chevrolet Trailblazer EXT Oxygen Sensor Reviews
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Shop Chevrolet Trailblazer EXT Replacement Oxygen Sensor

Search our online oxygen sensor catalog and find the lowest priced discount auto parts on the web. We sell wholesale to the public. We offer high quality new, OEM, aftermarket and remanufactured Chevrolet Trailblazer EXT Oxygen Sensor parts. We specialize in a wide-variety of high-quality car parts and accessories for your car, truck or SUV. Call toll free to order or place your order online via our secure checkout system. Our online parts catalog uses real-time inventory, so you can be assured the parts you buy are in stock at the time of ordering. Most orders are shipped the same day.

We stock these Oxygen Sensor brands for the Chevrolet Trailblazer EXT: ReplacementBoschAC DelcoDensoNGKAPIDIY SolutionsStandard Motor Products

Select your Trailblazer EXT year

Review Fitment Notes
Showing 20 of 307 Results
Replacement Oxygen Sensor - for 2003 Chevrolet Trailblazer EXT 5.3L V8 - 903-037 Click to Enlarge
5 Stars
Replacement 903-037
Oxygen Sensor
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Part Number: 903-037
Brand: Replacement
Notes: Oxygen Sensor -- 4 Wire; Direct Fit; Correct Connector; No cutting or splicing; Correct wire length (15.7 Inches or 400mm)
Product Remark: O2 OXYGEN SENSOR
Condition: New
Shipping Options: Free Ground Shipping
$30.95
with FREE Shipping
(57) In Stock
This Part Fits:
Catalog: E
Vehicle Engine Position
2003 Chevrolet Trailblazer EXT 5.3L V8 Upstream
Replacement Oxygen Sensor - for 2005 Chevrolet Trailblazer EXT 5.3L V8 - 903-006 Click to Enlarge
5 Stars
Replacement 903-006
Oxygen Sensor
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Part Number: 903-006
Brand: Replacement
Notes: OE Style -- Direct Fit
Product Remark: O2 OXYGEN SENSOR
Condition: New
Shipping Options: Free Ground Shipping
$30.95
with FREE Shipping
(99) In Stock
This Part Fits:
Catalog: E
Vehicle Engine Notes Position
2005 Chevrolet Trailblazer EXT 5.3L V8 DENSO is OE Upstream
Upstream Bosch Oxygen Sensor - for 2006 Chevrolet Trailblazer EXT 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 EXT 4.2L 6 Cyl
Upstream Bosch Oxygen Sensor - for 2003 Chevrolet Trailblazer EXT 5.3L V8 - 15896 Click to Enlarge
5 Stars
Bosch 15896
Oxygen Sensor
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Part Number: 15896
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
$33.43
(1) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2003 Chevrolet Trailblazer EXT 5.3L V8
Upstream Bosch Oxygen Sensor - for 2004 Chevrolet Trailblazer EXT 5.3L V8 - 15896 Click to Enlarge
5 Stars
Bosch 15896
Oxygen Sensor
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Part Number: 15896
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
$33.43
(1) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2004 Chevrolet Trailblazer EXT 5.3L V8
Downstream Bosch Oxygen Sensor - for 2003 Chevrolet Trailblazer EXT 5.3L V8 - 15895 Click to Enlarge
5 Stars
Bosch 15895
Oxygen Sensor
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Part Number: 15895
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
$40.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2003 Chevrolet Trailblazer EXT 5.3L V8
Upstream AC Delco Oxygen Sensor - for 2003 Chevrolet Trailblazer EXT 4.2L 6 Cyl - W0133-1666630 Click to Enlarge
Website Reviews
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Part Number: W0133-1666630
Brand: AC Delco
Notes: Genuine GM
Position: Upstream
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$107.46
Our Price: $58.58
View Details
This Part Fits:
Catalog: A
Vehicle Engine
2003 Chevrolet Trailblazer EXT 4.2L 6 Cyl
Downstream AC Delco Oxygen Sensor - for 2003 Chevrolet Trailblazer EXT 4.2L 6 Cyl - W0133-1763262 Click to Enlarge
Website Reviews
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Part Number: W0133-1763262
Brand: AC Delco
Notes: Genuine GM
Position: Downstream
Condition: New
Shipping Options: Ground, Overnight, 2 Day
OEM
List Price:
$111.42
Our Price: $57.58
(84) In Stock
This Part Fits:
Catalog: A
Vehicle Engine
2003 Chevrolet Trailblazer EXT 4.2L 6 Cyl
Upstream Denso Oxygen Sensor - for 2005 Chevrolet Trailblazer EXT - 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 EXT
Downstream Bosch Oxygen Sensor - for 2004 Chevrolet Trailblazer EXT 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
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2004 Chevrolet Trailblazer EXT 4.2L 6 Cyl
Downstream Bosch Oxygen Sensor - for 2005 Chevrolet Trailblazer EXT 5.3L V8 - 15895 Click to Enlarge
5 Stars
Bosch 15895
Oxygen Sensor
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Part Number: 15895
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
$40.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2005 Chevrolet Trailblazer EXT 5.3L V8
Downstream Bosch Oxygen Sensor - for 2006 Chevrolet Trailblazer EXT 5.3L V8 - 15894 Click to Enlarge
5 Stars
Bosch 15894
Oxygen Sensor
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Part Number: 15894
Brand: Bosch
Notes: Engineered Oxygen Sensor -- First Production
  • 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
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2006 Chevrolet Trailblazer EXT 5.3L V8
Downstream Bosch Oxygen Sensor - for 2004 Chevrolet Trailblazer EXT 5.3L V8 - 15895 Click to Enlarge
5 Stars
Bosch 15895
Oxygen Sensor
Loading Reviews...
Part Number: 15895
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
$40.43
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2004 Chevrolet Trailblazer EXT 5.3L V8
Downstream Bosch Oxygen Sensor - for 2005 Chevrolet Trailblazer EXT 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
(99) In Stock
This Part Fits:
Catalog: B
Vehicle Engine
2005 Chevrolet Trailblazer EXT 4.2L 6 Cyl
Downstream Bosch Oxygen Sensor - for 2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl - 15132 Click to Enlarge
Website Reviews
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Part Number: 15132
Brand: Bosch
Notes: OE Style Oxygen Sensor -- Bosch validated
Position: Downstream
Condition: New
Shipping Options: Ground
$75.08
(1) In Stock
This Part Fits:
Catalog: H
Vehicle Engine
2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl
Downstream NGK Oxygen Sensor - for 2005 Chevrolet Trailblazer EXT 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 EXT 4.2L 6 Cyl
Upstream AC Delco Oxygen Sensor - for 2005 Chevrolet Trailblazer EXT 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
$53.98
(1) In Stock
This Part Fits:
Catalog: T
Vehicle Engine
2005 Chevrolet Trailblazer EXT 4.2L 6 Cyl LL8 VIN: S
Downstream API Oxygen Sensor - for 2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl - 1900-482145 Click to Enlarge
Website Reviews
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Part Number: 127823-07768665
Brand: API
Notes: Oxygen Sensor -- Heated Sensor
Position: Downstream
Condition: New
Shipping Options: Ground
$31.98
View Details
This Part Fits:
Catalog: P
Vehicle Engine
2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl
Upstream DIY Solutions Oxygen Sensor - for 2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl - EMS00387 Click to Enlarge
Website Reviews
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Part Number: EMS00387
Brand: DIY Solutions
Notes: Oxygen Sensor -- L6 4.2L; Upstream
Position: Upstream
Condition: New
Shipping Options: Free Ground Shipping
$32.95
with FREE Shipping
(14) In Stock
This Part Fits:
Catalog: Q
Vehicle Engine
2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl
Standard Motor Products Oxygen Sensor - for 2006 Chevrolet Trailblazer EXT 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
2006 Chevrolet Trailblazer EXT 4.2L 6 Cyl

Related Fuel Injection Parts

Oxygen Sensors available for the following Chevrolet Trailblazer EXT years: 2006, 2005, 2004, 2003, 2002, 06, 05, 04, 03, 02. This part is also sometimes called Chevrolet Trailblazer EXT 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, Trailblazer, 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 and Silverado 1500 HD.

Chevrolet Trailblazer EXT Oxygen Sensor Reviews
5 of 5
Verified Customer
1/2/14 02:48 PM - USA

The service at Parts Geek is fantastic. They have every part I have ever wanted or need for all my vehicles. The price is better than average and the shipping is reasonable if not free. - Fantasic Service

- 2003 Chevrolet Trailblazer EXT Oxygen Sensor
5 of 5
Verified Customer
12/16/14 01:10 PM - USA

Parts arrived in time frame specified, parts were half the price as local parts store - satisfied

- 2003 Chevrolet Trailblazer EXT Oxygen Sensor
5 of 5
Verified Customer
12/16/14 01:13 PM - USA

Parts arrived in time frame specified,part were half the price of local parts store - satisfied

- 2003 Chevrolet Trailblazer EXT Oxygen Sensor