Denso 234-4733 Oxygen Sensor - Downstream or Upstream

Denso OE Style Oxygen Sensor 234-4733

Denso 234-4733 is an OE Style heated oxygen sensor built for direct replacement on select Honda and Acura applications. It is engineered for exact fit and reliable signal feedback, with a specific-fit design that supports accurate exhaust monitoring on the vehicles listed below.

Key Features

• OE Style replacement oxygen sensor for direct-fit service
• Heated sensor design with 4-wire configuration
• Specific-fit application for listed Honda and Acura models
• 13.19 in. wiring harness length
• Built with Denso’s aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination

Product Details

Denso’s OE Style line is built and tested to OE standards, with precision construction for a first-time fit. This oxygen sensor is designed to deliver the correct replacement form and function for downstream and upstream applications where listed, including Fits 2003-2011 Honda Element, Downstream, Fits 1999-2000 Acura EL, Upstream, and Fits 1999-2000 Honda Civic, Upstream. The Denso 234-4733 is a practical choice when you need a direct replacement that matches the original sensor layout and connector style for the specified vehicles.

This part cross-references Bosch 13371 and NTK 24631 for the same application.

Common Issues This Sensor Can Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel ratio feedback from a worn sensor
• Reduced fuel economy caused by slow or inaccurate sensor response
• Emissions test failure tied to faulty exhaust oxygen readings
• Rough idle or drivability concerns linked to sensor degradation

Installation Notes and Tips

Verify the sensor position before ordering, since this part is listed for both upstream and downstream locations depending on vehicle application. Confirm connector style, wire count, and harness length against the original sensor before installation. For best results, inspect the exhaust threads and wiring routing during replacement, and clear diagnostic trouble codes after installation if required by the vehicle.

Quality Assurance

Denso manufactures and tests this oxygen sensor to OE standards for consistent fit and function. The OE Style design reflects Denso’s focus on direct replacement accuracy and long-term durability in emission control service.