Denso 234-4315 Oxygen Sensor - Downstream Left

Denso 234-4315 Oxygen Sensor for Nissan Pathfinder

Denso 234-4315 is an OE-style heated oxygen sensor built for exact replacement and first-time fit. It is engineered for the downstream left position on the 2004 Nissan Pathfinder and is designed to support accurate exhaust feedback for consistent engine operation.

Denso’s OE Style line focuses on direct-fit replacement parts that match factory requirements. This oxygen sensor uses a threaded mounting design, a male connector, 4 wires, and a 47.83-inch wiring harness length for a factory-style installation on the 2004 Nissan Pathfinder, downstream left.

Key Features

• OE-style direct replacement oxygen sensor
• Fits 2004 Nissan Pathfinder, downstream left
• Heated sensor design for faster operating response
• Specific-fit application for correct connector and mounting alignment
• 4-wire configuration with male connector
• Threaded mounting type with 0.708-inch thread diameter
• 47.83-inch wiring harness length

Product Details

This Denso oxygen sensor, part number 234-4315, is manufactured and tested to OE standards for a precise replacement in the exhaust system. It uses Denso’s aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting stable sensor performance and long service life. For buyers searching for a 2004 Nissan Pathfinder downstream left oxygen sensor or a Denso 234-4315 OE-style replacement, this part is built to match the original application closely.

This part cross-references Bosch 15065 for the same application.

Common Issues This Part May Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel feedback from a worn downstream sensor
• Reduced fuel economy caused by degraded exhaust sensor response
• Rougher engine operation tied to inaccurate emissions data
• Failed emissions inspection due to a faulty oxygen sensor

Installation Notes

Verify the downstream left location before installation on the 2004 Nissan Pathfinder. Match the threaded mount, 4-wire connector, and harness length to the original sensor before removal. Inspect the exhaust bung threads and connector condition during service to ensure proper seating and electrical connection.

Quality Assurance

Denso manufactures this OE Style oxygen sensor to strict original-equipment standards and tests each component for direct-fit replacement performance. The design emphasizes correct fit, accurate sensor response, and durability in demanding exhaust conditions.