HomeEmission Control > SensorsDenso 234-5047 Air / Fuel Ratio Sensor - Upstream
Part #: 234-5047

Denso 234-5047 Air / Fuel Ratio Sensor - Upstream

OE Style, Upstream
2 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
OE Style, Upstream
Fitment: Hyundai, Elantra
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Overview of Denso OE Style Air/Fuel Ratio Sensor 234-5047

The Denso OE Style Air/Fuel Ratio Sensor 234-5047 is designed specifically for Hyundai Elantra models, providing precise air and fuel mixture readings. This heated sensor ensures optimal engine performance and emissions control by maintaining accurate data for the vehicle's engine management system.

  • Heated sensor type for faster response times
  • Specific fit for Hyundai Elantra vehicles
  • 21.73-inch wiring harness length for proper installation
  • Five-wire configuration with male connector
  • 0.711-inch thread diameter for secure mounting
  • Regular grade type for standard durability

Detailed Product Description

The Denso 234-5047 air/fuel ratio sensor is engineered to meet the exact specifications of Hyundai Elantra models, ensuring compatibility and reliable operation. Featuring a heated sensor element, it quickly reaches operating temperature to provide accurate oxygen level readings. The sensor includes a 21.73-inch wiring harness and a male connector with five wires, facilitating straightforward integration with the vehicle's existing wiring system. Its 0.711-inch thread diameter allows for a secure and proper fit in the emission control system.

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 designed to provide a balance of quality and value, making it suitable for replacement parts that require precise fitment and function without extensive modifications.

Common Applications and Issues Addressed

  • Helps maintain proper air/fuel mixture for efficient combustion
  • Reduces engine misfires caused by incorrect oxygen sensor readings
  • Supports emission control compliance by monitoring exhaust gases
  • Prevents poor fuel economy linked to faulty sensors
  • Addresses check engine light triggers related to air/fuel ratio sensor faults

Installation Notes and Tips

  • Ensure the sensor thread diameter (0.711 inches) matches the vehicle’s mounting port
  • Handle the sensor carefully to avoid damage to the heated element and wiring harness
  • Verify the male connector and five-wire configuration align with the Hyundai Elantra’s wiring harness
  • Use appropriate tools to avoid over-tightening during installation
  • Consult vehicle service manual for torque specifications and sensor location

Quality Assurance and Warranty

Denso’s OE Style air/fuel ratio sensor 234-5047 is manufactured to meet industry standards for emission control sensors. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. This ensures reliability and peace of mind when replacing the air/fuel ratio sensor on Hyundai Elantra vehicles.

BrandDenso
Part Number234-5047
PositionOE Style, Upstream
Connector GenderMale
Grade TypeRegular
Sensor TypeHeated
Thread Diameter0.711
Universal Or Specific FitSpecific
Wire Quantity5
Wiring Harness Length21.73

This part fits 2 vehicles. Search below:

YearMakeModelPositionNotes
2010HyundaiElantraUpstreamOE Style
2009HyundaiElantraUpstreamOE 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:

18052

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