Walker 250-54102 Oxygen Sensor

Walker Products OE Oxygen Sensor 250-54102

Walker Products OE 250-54102 is a heated oxygen sensor built as an OE-style replacement for specific Nissan and INFINITI applications. It is engineered for the correct fitment position and ECU feedback on the listed vehicles, helping restore accurate exhaust monitoring after a sensor fault.

Key Features

• Heated oxygen sensor for upstream applications
• Specific fit design for listed Nissan and INFINITI models
• 4-wire configuration with female connector
• Threaded mounting with 18.0 mm thread diameter
• Wiring harness length: 12.32 in.; overall length: 15.87 in.
• Walker Products OE part number 250-54102

Product Details

Walker Products OE focuses on direct-replacement engine management components for vehicles worldwide. This oxygen sensor is manufactured for the specified application and position so the ECU receives the expected signal from the exhaust stream. It is a practical replacement for upstream sensor service on models such as Nissan Altima, Frontier, Sentra, Versa, and INFINITI QX60 when the original sensor has failed or is reporting incorrect data. Part number 250-54102 is also referenced as Walker Products OE 250-54102 in catalog listings.

This part cross-references no additional part numbers listed for the same application.

What It Helps Address

• Check engine or malfunction indicator light related to oxygen sensor performance
• Poor fuel economy caused by inaccurate air-fuel feedback
• Rough engine operation from incorrect ECU sensor input
• Higher exhaust emissions from a degraded upstream sensor
• Fault codes tied to Bank 1 Sensor 1 or upstream sensor circuits

Installation Notes and Fitment

Compatible With 2011-2014 Nissan 370Z, upstream right or upstream left; 2013-2015 Nissan Altima, upstream; 2013-2014 Nissan Altima, upstream front or upstream rear; 2013-2015 Nissan Armada, upstream right or upstream left; 2013-2014 Nissan Frontier, upstream right or upstream left; 2015 Nissan Frontier, upstream right or upstream left; 2011-2013 INFINITI G37, upstream right or upstream left; 2014-2017 Nissan NV350 Urvan, upstream; and 2012-2021 Nissan NV1500, NV2500, and NV3500, upstream right or upstream left.

Additional fitment includes 2012-2018 Nissan Versa and 2014-2017 Nissan Versa Note, upstream; 2013-2019 Nissan Frontier, upstream; 2014-2017 INFINITI QX60, upstream; 2015-2017 Nissan Note, upstream; 2016-2017 Nissan Altima, upstream; 2018-2019 Nissan Sentra, upstream; and 2015-2018 Chevrolet City Express, upstream. Verify the exact position, emissions calibration, and connector style before installation, especially on vehicles with California or Federal emissions differences.

Use the existing threaded sensor location and inspect the wiring harness and connector for heat damage, abrasion, or corrosion before replacement. Confirm the upstream position and side designation on the vehicle to match the listed application.

Quality Assurance

Walker Products OE sensors are developed as Original Equipment replacement parts and manufactured under ISO 9001 / TS 16949 quality systems. Since 1946, Walker Products has supplied engine management and fuel system components for a wide range of vehicle applications.