HomeEmission Control > SensorsDenso 234-5006 Air / Fuel Ratio Sensor - Upstream
Part #: 234-5006

Denso 234-5006 Air / Fuel Ratio Sensor - Upstream

OE Style, Upstream
⚙️ 13 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦OE Style, Upstream
🚗Fitment: Saturn and Cadillac, L300, LW300, Catera, LS2, and LW2
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Overview of the Denso OE Style Air/Fuel Ratio Sensor 234-5006

The Denso OE Style Air/Fuel Ratio Sensor 234-5006 is designed specifically for select Cadillac and Saturn models, including the Catera, L300, LS2, LW2, and LW300. This heated sensor ensures accurate air and fuel mixture readings to support optimal engine performance and emissions control.

  • Heated sensor type for faster response times
  • Specific fit for Cadillac Catera and Saturn L300, LS2, LW2, LW300 models
  • 22.20-inch wiring harness length for precise installation
  • Five-wire configuration with male connector
  • Thread diameter of 0.711 inches for secure mounting
  • Regular grade type for reliable operation

Detailed Product Description

The Denso 234-5006 air/fuel ratio sensor is engineered to provide accurate feedback to the engine control unit by measuring the oxygen content in the exhaust gases. This heated sensor type improves warm-up time, allowing the engine to reach optimal operating conditions more quickly. With a wiring harness length of 22.20 inches and a five-wire setup, this sensor is designed for a specific fit, ensuring compatibility with Cadillac Catera and Saturn L300, LS2, LW2, and LW300 models. The male connector and 0.711-inch thread diameter facilitate straightforward installation and secure attachment.

This sensor is part of Denso's OE Style product line, which focuses on delivering components that closely match original equipment specifications. The OE Style line is intended to provide a balance of quality and value, making it suitable for professional repairs and maintenance where OEM compatibility is required.

Common Applications and Issues Addressed

  • Helps maintain proper air/fuel mixture for efficient combustion
  • Reduces emissions by providing accurate sensor data to the engine control unit
  • Resolves engine performance issues related to faulty oxygen sensing
  • Prevents check engine light triggers caused by sensor failure
  • Improves fuel economy by ensuring correct sensor feedback

Installation Notes and Tips

  • Verify compatibility with your vehicle’s make and model before installation
  • Handle the sensor carefully to avoid damage to the wiring harness and connector
  • Use appropriate tools to avoid damaging the 0.711-inch threaded mounting
  • Ensure the sensor is properly tightened to prevent exhaust leaks
  • Follow vehicle manufacturer torque specifications during installation

Quality Assurance and Warranty

Denso’s OE Style air/fuel ratio sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship. Always consult the product documentation or supplier for exact warranty terms related to part number 234-5006.

BrandDenso
Part Number234-5006
PositionOE Style, Upstream
Connector GenderMale
Grade TypeRegular
Sensor TypeHeated
Thread Diameter0.711
Universal Or Specific FitSpecific
Wire Quantity5
Wiring Harness Length22.20

This part fits 13 vehicles. Search below:

YearMakeModelPositionNotes
2005SaturnL300UpstreamOE Style
2004SaturnL300UpstreamOE Style
2003SaturnL300UpstreamOE Style
2003SaturnLW300UpstreamOE Style
2002SaturnL300UpstreamOE Style
2002SaturnLW300UpstreamOE Style
2001CadillacCateraUpstreamOE Style
2001SaturnL300UpstreamOE Style
2001SaturnLW300UpstreamOE Style
2000CadillacCateraUpstreamOE Style
2000SaturnLS2UpstreamOE Style
2000SaturnLW2UpstreamOE Style
1999CadillacCateraUpstreamOE 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:

213-4158213-805

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