Denso 234-4314 Oxygen Sensor - Downstream Right

Denso OE Style Oxygen Sensor for Pathfinder

Denso 234-4314 is an OE Style heated oxygen sensor built for exact replacement and first-time fit. It is made for the 2004 Nissan Pathfinder, downstream right, with the connector, thread size, and harness length matched to the application.

The Denso OE Style line focuses on direct-fit replacement parts for emission control service. This oxygen sensor uses Denso’s aluminum oxide trap layer to help protect the sensing element from silicone and lead contamination, supporting stable engine operation and consistent fuel economy over time.

• Heated oxygen sensor for emission control service
• Specific fit for the 2004 Nissan Pathfinder, downstream right
• 4-wire design with male connector
• Threaded mounting type with 0.708 in. thread diameter
• Wiring harness length: 34.84 in.
• OE Style replacement built to match factory fit and function

Detailed Product Overview

Denso 234-4314 is engineered as a direct replacement oxygen sensor for the 2004 Nissan Pathfinder, downstream right. The heated sensor design helps the engine management system monitor exhaust oxygen levels after the catalytic converter, which is important for emissions control and drivability. With a specific-fit design, 4-wire configuration, and threaded mounting, this part is intended to match the original sensor layout without modification. This part cross-references Bosch 15066 for the same application.

Common Symptoms This Sensor Can Address

• Check engine light related to oxygen sensor performance
• Rough idle or inconsistent air-fuel control
• Reduced fuel economy from inaccurate exhaust readings
• Emission test failure tied to downstream sensor faults
• Slow sensor response or heater circuit trouble codes

Installation Notes and Fitment

Fits 2004 Nissan Pathfinder, downstream right. Confirm connector style, thread diameter, and harness routing before installation. The 34.84-inch harness length and male connector are important for proper routing and secure connection. Use the vehicle’s original mounting location and verify the downstream right position before replacing the sensor. Denso 234-4314 is also a useful search term when looking for an OE-style oxygen sensor for the 2004 Nissan Pathfinder.

Quality Assurance

Denso manufactures and tests this oxygen sensor to OE standards for direct replacement use. The design is precision built for exact fitment and incorporates a protective trap layer to help resist contamination that can shorten sensor life.