Denso 234-4905 Oxygen Sensor - Downstream

Denso OE Style Oxygen Sensor for Nissan Altima

Denso 234-4905 is an OE Style heated oxygen sensor built for specific-fit replacement on the downstream position of select Nissan Altima models. It is engineered for accurate exhaust feedback, stable engine management, and a first-time fit on 2013-2018 Nissan Altima applications.

The Denso OE Style line focuses on direct replacement fitment and OE-level construction. This sensor uses a threaded mounting design, a female connector, 4 wires, and a 10.67-inch wiring harness length to match the original configuration on the vehicle.

Key Features

• Specific-fit heated oxygen sensor for downstream placement
• OE Style replacement for 2013-2018 Nissan Altima
• Threaded mounting type with 0.708-inch thread diameter
• 4-wire design with female connector
• 10.67-inch wiring harness length for direct replacement routing
• Built to OE standards for consistent signal performance
• Uses Denso’s aluminum oxide trap layer to help protect the sensing element from silicone and lead contamination

Product Details

Denso 234-4905 is a downstream oxygen sensor for the Nissan Altima that supports precise exhaust monitoring after the catalytic converter. As part of Denso’s OE Style product line, it is built for exact replacement fitment and reliable electrical connection, making it a practical choice for drivers replacing a worn or slow-responding sensor on 2013, 2014, 2015, 2016, 2017, or 2018 Nissan Altima models. This part cross-references NTK 24466 for the same application.

Common Issues This Sensor Can Address

• Check engine light related to downstream oxygen sensor performance
• Incorrect exhaust feedback readings from a failing sensor
• Reduced fuel economy caused by inaccurate air-fuel monitoring
• Rougher engine operation tied to degraded sensor response
• Replacement needs after contamination or sensor wear

Installation Notes and Tips

Verify the downstream sensor location before ordering and match the connector, wire count, and threaded mounting style to the original part. For best results, inspect the harness routing and connector condition during installation on Nissan Altima applications. Confirm the vehicle year and position against the fitment data for 2013-2018 Nissan Altima, downstream.

Quality Assurance

Denso manufactures and tests this oxygen sensor to OE standards for direct replacement use. The sensor design includes contamination protection for the ceramic element, supporting long-term durability and consistent operation in emission control service.