HomeEmission Control > SensorsDenso 234-4103 Oxygen Sensor
Part #: 234-4103

Denso 234-4103 Oxygen Sensor

OE Style, Downstream
⚙️ 72 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦OE Style, Downstream
🚗Fitment: Buick, Pontiac, Cadillac, Chevrolet, and GMC, Allure, LaCrosse, Grand Prix, Escalade, Escalade EXT, Avalanche 2500, Express 3500, Silverado 1500 HD, Silverado 2500, Silverado 2500 HD, Silverado 3500, Suburban 2500, Savana 3500, Sierra 1500, Sierra 1500 HD, Sierra 2500, Sierra 2500 HD, Sierra 3500, Yukon, Yukon XL 1500, Yukon XL 2500, C2500, C3500, K2500, and K3500
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Overview of the Denso OE Style Oxygen Sensor 234-4103

The Denso OE Style Oxygen Sensor 234-4103 is designed for precise emission control in select GM vehicles. This heated oxygen sensor features a specific fitment for models such as the Chevrolet Silverado 1500 HD and Cadillac Escalade, ensuring accurate air-fuel mixture readings for optimal engine performance.

  • Heated sensor type for faster response times
  • Specific fit for Buick, Cadillac, Chevrolet, GMC, and Pontiac models
  • 14.76-inch wiring harness length for proper installation
  • Four-wire configuration with female connector
  • Threaded mounting with 0.708-inch thread diameter

Detailed Features and Specifications

This oxygen sensor from Denso’s OE Style line is engineered to meet original equipment standards. The heated sensor element allows quicker activation, reducing emissions during cold starts. With a 14.76-inch wiring harness and a four-wire setup, it provides reliable electrical connections and signal transmission. The female connector and threaded mounting type with a 0.708-inch diameter ensure compatibility and secure installation in specific GM vehicles.

About the Denso OE Style Product Line

The OE Style product line by Denso focuses on delivering parts that match original equipment specifications for direct replacement. This ensures that the oxygen sensor 234-4103 maintains factory-level performance and fitment, making it suitable for vehicles requiring precise emission control components without modification.

Compatible Vehicles and Common Applications

  • Buick Allure and LaCrosse
  • Cadillac Escalade, Escalade EXT
  • Chevrolet Avalanche 2500, Silverado 1500 HD, Suburban 2500
  • GMC Sierra 1500, Sierra 2500 HD, Sierra 3500, Yukon XL 1500
  • Pontiac Grand Prix

Issues Addressed by the Denso Oxygen Sensor 234-4103

  • Incorrect air-fuel mixture readings causing poor fuel economy
  • Check engine light triggered by faulty oxygen sensor signals
  • Increased emissions due to sensor malfunction
  • Engine performance issues such as rough idling or hesitation
  • Failed emissions tests related to sensor accuracy

Installation Notes and Tips

Ensure the vehicle is cool before installation to avoid injury. Disconnect the battery to prevent electrical shorts. The 14.76-inch wiring harness length allows for proper routing without strain. Use the correct tools to remove the old sensor and install the new threaded sensor securely. Verify the female connector is fully seated to maintain signal integrity.

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet strict quality standards and original equipment specifications. This part number 234-4103 undergoes rigorous testing to ensure durability and performance. Warranty coverage details should be confirmed with the parts provider or manufacturer documentation.

BrandDenso
Part Number234-4103
PositionOE Style, Downstream
Connector GenderFemale
Mounting TypeThreaded
Sensor TypeHeated
Thread Diameter0.708
Universal Or Specific FitSpecific
Wire Quantity4
Wiring Harness Length14.76

This part fits 72 vehicles. Search below:

YearMakeModelPositionNotes
2009BuickAllureDownstreamOE Style
2009BuickLaCrosseDownstreamOE Style
2008BuickAllureDownstreamOE Style
2008BuickLaCrosseDownstreamOE Style
2008PontiacGrand PrixDownstreamOE Style
2002CadillacEscaladeUpstreamOE Style
2002CadillacEscalade EXTUpstreamOE Style
2002ChevroletAvalanche 2500Upstream RightOE Style
2002ChevroletAvalanche 2500Upstream LeftOE Style
2002ChevroletAvalanche 2500Downstream RightOE Style
2002ChevroletExpress 3500UpstreamOE Style
2002ChevroletExpress 3500DownstreamOE Style
2002ChevroletSilverado 1500 HDUpstreamOE Style
2002ChevroletSilverado 2500UpstreamOE Style
2002ChevroletSilverado 2500 HDUpstreamOE Style
2002ChevroletSilverado 2500 HDDownstream RightOE Style
2002ChevroletSilverado 3500UpstreamOE Style
2002ChevroletSilverado 3500Downstream RightOE Style
2002ChevroletSuburban 2500UpstreamOE Style
2002ChevroletSuburban 2500Downstream RightOE Style
2002GMCSavana 3500UpstreamOE Style
2002GMCSavana 3500DownstreamOE Style
2002GMCSierra 1500UpstreamOE Style
2002GMCSierra 1500 HDUpstreamOE Style
2002GMCSierra 2500UpstreamOE Style
2002GMCSierra 2500 HDUpstreamOE Style
2002GMCSierra 2500 HDDownstream RightOE Style
2002GMCSierra 3500UpstreamOE Style
2002GMCSierra 3500Downstream RightOE Style
2002GMCYukonUpstreamOE Style
2002GMCYukon XL 1500UpstreamOE Style
2002GMCYukon XL 2500UpstreamOE Style
2002GMCYukon XL 2500Downstream RightOE Style
2001ChevroletExpress 3500UpstreamOE Style
2001ChevroletExpress 3500DownstreamOE Style
2001ChevroletSilverado 1500 HDUpstreamOE Style
2001ChevroletSilverado 2500UpstreamOE Style
2001ChevroletSilverado 2500 HDUpstreamOE Style
2001ChevroletSilverado 2500 HDDownstream RightOE Style
2001ChevroletSilverado 3500UpstreamOE Style
2001ChevroletSilverado 3500Downstream RightOE Style
2001ChevroletSuburban 2500UpstreamOE Style
2001ChevroletSuburban 2500Downstream RightOE Style
2001GMCSavana 3500UpstreamOE Style
2001GMCSavana 3500DownstreamOE Style
2001GMCSierra 1500UpstreamOE Style
2001GMCSierra 1500 HDUpstreamOE Style
2001GMCSierra 2500UpstreamOE Style
2001GMCSierra 2500 HDUpstreamOE Style
2001GMCSierra 2500 HDDownstream RightOE Style
2001GMCSierra 3500UpstreamOE Style
2001GMCSierra 3500Downstream RightOE Style
2001GMCYukonUpstreamOE Style
2001GMCYukon XL 1500UpstreamOE Style
2001GMCYukon XL 2500UpstreamOE Style
2001GMCYukon XL 2500Downstream RightOE Style
2000ChevroletC2500UpstreamOE Style
2000ChevroletC2500DownstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2000ChevroletC3500UpstreamOE Style
2000ChevroletC3500DownstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2000ChevroletK2500UpstreamOE Style
2000ChevroletK2500DownstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2000ChevroletK3500UpstreamOE Style
2000ChevroletK3500DownstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2000GMCC2500UpstreamOE Style
2000GMCC2500DownstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2000GMCC3500UpstreamOE Style
2000GMCC3500DownstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2000GMCK2500UpstreamOE Style
2000GMCK2500DownstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style
2000GMCK3500UpstreamOE Style
2000GMCK3500DownstreamCalifornia exempt parts can be used on pollution controlled vehicles in California.; OE Style

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

213-4253213-921213-922213-939213-941

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.