HomeEmission Control > SensorsDenso 234-4241 Oxygen Sensor - Downstream Front, Downstream Left or Downstream Right
Part #: 234-4241

Denso 234-4241 Oxygen Sensor - Downstream Front, Downstream Left or Downstream Right

OE Style, Downstream Left
7 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, Downstream Left
Fitment: INFINITI and Nissan, I35, Maxima, and Sentra
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Overview of the Denso OE Style Oxygen Sensor 234-4241

The Denso OE Style Oxygen Sensor 234-4241 is designed specifically for select INFINITI and Nissan vehicles, including the I35, Maxima, and Sentra models. This heated oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions control.

  • Heated sensor type for faster response times
  • Specific fit for INFINITI I35 and Nissan Maxima, Sentra
  • 31.89-inch wiring harness length for precise installation
  • Four-wire design with male connector for reliable connectivity
  • Threaded mounting type with 0.708-inch thread diameter

Detailed Features and Specifications

The Denso 234-4241 oxygen sensor features a heated sensor element that allows it to reach operating temperature quickly, improving emission control efficiency. Its specific fitment ensures compatibility with INFINITI I35 and Nissan Maxima and Sentra models, providing a direct replacement without modification. The sensor includes a 31.89-inch wiring harness, which offers sufficient length for proper routing and connection. Equipped with four wires and a male connector, it supports accurate signal transmission to the vehicle’s engine control unit. The threaded mounting type with a 0.708-inch diameter allows secure installation in the exhaust system.

About the Denso OE Style Product Line

The OE Style line from Denso is engineered to meet original equipment specifications, providing a reliable replacement option for emission control sensors. This product line focuses on delivering parts that match the fit, form, and function of factory-installed components. The 234-4241 oxygen sensor from the OE Style series is designed to maintain the emission standards and engine performance expected from the original sensor in INFINITI and Nissan vehicles.

Common Applications and Problem Solving

  • Restores accurate oxygen sensing for proper air-fuel mixture adjustment
  • Helps resolve check engine light issues related to oxygen sensor faults
  • Improves fuel efficiency by ensuring correct sensor feedback
  • Reduces harmful emissions by maintaining proper combustion control
  • Prevents engine performance problems caused by faulty sensor readings

Installation Notes and Tips

When installing the Denso 234-4241 oxygen sensor, ensure the vehicle is cooled down to avoid burns. Use the correct socket size for the 0.708-inch threaded mounting to avoid damage. Verify the wiring harness length of 31.89 inches is sufficient for your vehicle’s routing needs. Confirm the male connector matches the vehicle’s wiring harness for a secure connection. It is recommended to check for any exhaust leaks around the sensor mounting area after installation.

Quality Assurance and Warranty

Denso manufactures the 234-4241 oxygen sensor to meet strict quality standards consistent with original equipment. The OE Style product line undergoes rigorous testing to ensure durability and reliable performance. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship to support long-term use in INFINITI and Nissan vehicles.

BrandDenso
Part Number234-4241
PositionOE Style, Downstream Left
Connector GenderMale
Mounting TypeThreaded
Sensor TypeHeated
Thread Diameter0.708
Universal Or Specific FitSpecific
Wire Quantity4
Wiring Harness Length31.89

This part fits 7 vehicles. Search below:

YearMakeModelPositionNotes
2004INFINITII35Downstream LeftBetween manifold and pre-catalytic oxygen sensor location.; OE Style
2003INFINITII35Downstream LeftBetween manifold and pre-catalytic oxygen sensor location.; OE Style
2003NissanMaximaDownstream FrontBetween manifold and pre-catalytic oxygen sensor location.; OE Style
2002INFINITII35Downstream LeftBetween manifold and pre-catalytic oxygen sensor location.; OE Style
2002NissanMaximaDownstream FrontBetween manifold and pre-catalytic oxygen sensor location.; OE Style
2002NissanSentraDownstream RightExc. Clean Air Vehicle; Green Connector; From 08/01/2001; OE Style
2001NissanSentraDownstream RightExc. Clean Air Vehicle; Green Connector; From 08/01/2001; 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:

213-3095

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