Denso 234-4468 Oxygen Sensor - Upstream Left

OE-Style Oxygen Sensor for Nissan Sentra

This Denso OE Style oxygen sensor is a specific-fit replacement for the upstream left position on the 2002 Nissan Sentra. Built as a heated, 4-wire sensor with a threaded mounting design, it is made for direct replacement service where accurate exhaust feedback and stable engine management matter.

Part number 234-4468 is engineered to match OE-style fit and function for the 2002 Nissan Sentra, upstream left. It is a direct replacement choice for drivers looking for a precise sensor match without modifying the harness or mounting location.

Key Features

• Specific-fit oxygen sensor for the 2002 Nissan Sentra, upstream left
• Heated sensor design for faster operating response
• 4-wire configuration with male connector
• Threaded mounting type for direct installation
• 15.16-inch wiring harness length
• OE-style replacement built to strict factory standards
• Aluminum oxide trap layer helps protect the ceramic element from silicone and lead contamination

Product Details

Denso 234-4468 is part of the OE Style line, which focuses on direct-fit replacement sensors built to match original equipment requirements. For the 2002 Nissan Sentra, upstream left, this sensor is designed to provide the correct fit, connector style, and threaded mounting arrangement for a straightforward replacement. The heated design supports quicker sensor operation, while the OE-style construction helps maintain proper engine management, fuel control, and emissions system performance. This part cross-references Bosch 15365 for the same application.

Common Issues This Sensor Can Address

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

Installation Notes and Tips

Verify the connector, wire count, thread diameter, and upstream left position before installation. The 2002 Nissan Sentra application is specific fit, so confirm the vehicle configuration matches the listed notes, including the exclusion for Clean Air Vehicle models. Use proper oxygen sensor service tools and inspect the harness routing to avoid strain on the 15.16-inch lead.

Quality Assurance

Denso manufactures and tests this oxygen sensor to OE standards for consistent replacement fit and performance. The OE Style line is built for first-time fitment and uses a protective aluminum oxide trap layer to help shield the sensing element from contamination that can shorten service life.