HomeEmission Control > SensorsDenso 234-5018 Air / Fuel Ratio Sensor - Upstream Front or Upstream Rear
Part #: 234-5018

Denso 234-5018 Air / Fuel Ratio Sensor - Upstream Front or Upstream Rear

OE Style, Upstream Rear and Upstream Front
⚙️ 4 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦OE Style, Upstream Rear and Upstream Front
🚗Fitment: Acura, RL
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Reliable Air/Fuel Ratio Sensor for Acura RL

The Denso OE Style Air/Fuel Ratio Sensor 234-5018 is engineered specifically for Acura RL models, ensuring precise emissions control and optimal engine performance. This heated sensor features a 10.79-inch wiring harness and a 5-wire configuration designed for a direct fit.

  • Heated sensor type for faster response times
  • Specific fitment for Acura RL vehicles
  • 10.79-inch wiring harness length for proper installation
  • 5-wire design with male connector for secure connection
  • 0.711 thread diameter for compatibility with OEM mounting points
  • Regular grade type for standard durability and performance

About the Denso OE Style Product Line

The OE Style line by Denso offers replacement parts that closely match original equipment specifications. This ensures that the 234-5018 air/fuel ratio sensor maintains the performance and reliability expected from factory-installed components, making it a suitable choice for Acura RL owners seeking a direct replacement sensor.

Detailed Product Description

The Denso 234-5018 air/fuel ratio sensor is a heated sensor designed to provide accurate readings of the oxygen content in exhaust gases. Its 5-wire configuration and male connector ensure a secure and reliable electrical connection. The 10.79-inch wiring harness length allows for proper routing and installation within the Acura RL’s engine bay. The sensor’s 0.711 thread diameter matches OEM specifications, facilitating straightforward installation without modification. This sensor plays a critical role in maintaining the correct air-to-fuel ratio, which is essential for efficient combustion and emissions control.

Common Applications and Issues Addressed

  • Helps resolve poor fuel economy caused by incorrect air/fuel mixture
  • Addresses rough idling or engine hesitation due to faulty sensor readings
  • Reduces emissions by ensuring accurate oxygen level monitoring
  • Prevents check engine light triggers related to air/fuel ratio sensor faults
  • Supports proper engine performance and drivability in Acura RL vehicles

Installation Notes and Tips

When installing the Denso 234-5018 sensor, ensure the wiring harness is routed away from excessive heat sources and moving parts. Use appropriate tools to avoid damaging the sensor threads during installation. Verify the male connector is securely attached to the vehicle’s wiring harness to prevent electrical issues. This sensor is designed for a specific fit on Acura RL models, so confirm vehicle compatibility before installation.

Quality Assurance and Warranty

Denso manufactures the 234-5018 air/fuel ratio sensor to meet OEM standards for quality and durability. While specific warranty details are not provided here, Denso products typically come with manufacturer-backed warranties to protect against defects in materials and workmanship. Using this sensor helps maintain the emissions control system’s integrity and overall vehicle performance.

BrandDenso
Part Number234-5018
PositionOE Style, Upstream Rear and Upstream Front
Wiring Harness Length10.79
Sensor TypeHeated
Universal Or Specific FitSpecific
Wire Quantity5
Grade TypeRegular
Connector GenderMale
Thread Diameter0.711

This part fits 4 vehicles. Search below:

YearMakeModelPositionNotes
2010AcuraRLUpstream RearOE Style
2010AcuraRLUpstream FrontOE Style
2009AcuraRLUpstream RearOE Style
2009AcuraRLUpstream FrontOE 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:

36531RKGA0136541RKGA01

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