Denso 234-3113 Oxygen Sensor - Upstream

Denso OE Style Oxygen Sensor 234-3113

Denso 234-3113 is an OE Style heated oxygen sensor built for direct replacement in specific Nissan and INFINITI applications. It is engineered for exact fitment, stable signal performance, and reliable exhaust monitoring on upstream locations.

Key Features

• Heated oxygen sensor for faster operating response
• Specific fit design for direct replacement
• 3-wire configuration with male connector
• Threaded mounting type with 0.708 thread diameter
• 15.35 wiring harness length for application-specific routing
• OE Style construction for factory-like fit and function

OE Style Design and Application

The Denso OE Style line is built to match original equipment dimensions and connection points for a first-time fit. This sensor uses Denso’s aluminum oxide trap layer to help protect the ceramic element from silicone and lead contamination, supporting consistent engine management performance and long service life. Part number 234-3113 is used in upstream positions on select INFINITI I35, Nissan Altima, Nissan Frontier, Nissan Xterra, Nissan Maxima, Nissan G20, and Nissan Sentra applications.

This part cross-references Bosch (e.g., 13968, 15467) for the same application.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Incorrect air-fuel mixture feedback to the engine control system
• Reduced fuel economy caused by a slow or inaccurate upstream sensor
• Rough idle or drivability issues tied to exhaust feedback errors
• Emissions test failures caused by sensor response problems

Installation Notes and Fitment

• Fits 2002-2004 INFINITI I35, Upstream, OE Style
• Fits 2004 Nissan Altima, Upstream, To 01/04; OE Style
• Fits 2002-2004 Nissan Frontier, Upstream, OE Style
• Fits 2002-2004 Nissan Xterra, Upstream, OE Style
• Fits 2002-2003 Nissan Altima, Upstream, OE Style
• Fits 2002-2003 Nissan Maxima, Upstream, OE Style
• Fits 2002 INFINITI G20, Upstream, OE Style
• Fits 2001 Nissan Altima, Upstream, From 12/00; OE Style
• Fits 2001 Nissan Sentra, Upstream, Exc. Clean Air Vehicle; Light Blue Connector; From 08/01/2001; OE Style

Verify connector style, thread size, and upstream location before installation. This sensor is specific fit, so match the vehicle build date and notes exactly for the listed Nissan and INFINITI applications. Denso 234-3113 is a direct-fit replacement for the confirmed vehicles above.

Quality Assurance

Denso manufactures and tests this oxygen sensor to OE standards for dimensional accuracy and dependable operation. The OE Style design focuses on correct fit, proper electrical connection, and durable sensor construction for factory-type replacement service.