Walker 250-241108 Oxygen Sensor

OE Oxygen Sensor for Nissan and Infiniti

Walker Products OE oxygen sensor 250-241108 is a heated, specific-fit replacement built for downstream applications that require accurate ECU feedback. It is engineered for select Nissan, INFINITI, and Chevrolet City Express models, including downstream bank 1 sensor 2 positions where listed.

Walker Products OE focuses on application-specific engine management sensors, and this oxygen sensor follows that approach with the correct connector style, thread size, and harness length for the listed vehicles. If your Nissan Pathfinder, Murano, Quest, Altima, or INFINITI QX60 has a fault code tied to the downstream sensor circuit, this part number 250-241108 is built for the original mounting location.

Key Features

• Heated oxygen sensor for downstream exhaust monitoring
• Specific-fit design for listed Nissan, INFINITI, and Chevrolet applications
• 4-wire configuration with female connector
• Threaded mounting with 18.0 mm thread diameter
• 16.26 in. wiring harness length and 19.8 in. overall length
• Radiused polygon connector shape for application-specific fitment

Detailed Description

Walker Products OE 250-241108 is an oxygen sensor designed to replace the original downstream sensor on select vehicles from 2012-2021. It is listed for downstream, downstream front, downstream rear, and downstream right positions depending on the vehicle and build date. This makes it a direct-fit choice for owners searching for a downstream oxygen sensor for 2013-2014 Nissan Altima, a rear downstream oxygen sensor for 2012-2014 Nissan Murano, or a downstream right oxygen sensor for 2014 INFINITI QX60.

As an OE-style replacement, this sensor is intended to provide the ECU with the feedback needed for emissions and fuel-control monitoring. Walker Products notes that a failing sensor can contribute to poor engine operation, higher fuel use, increased exhaust emissions, and a malfunction indicator light. The brand also emphasizes checking the sensor, wiring harness, and connector for physical damage when diagnosing the system.

What It Helps Address

• Downstream oxygen sensor fault codes
• Malfunction indicator light related to the exhaust sensor circuit
• Rough engine operation caused by inaccurate sensor feedback
• Increased fuel consumption from a degraded oxygen sensor
• Elevated exhaust emissions from a failing downstream sensor

Installation Notes and Fitment

• Fits 2013-2021 Nissan NV200, downstream bank 1 sensor 2
• Fits 2015-2018 Chevrolet City Express, downstream bank 1 sensor 2
• Fits 2015 INFINITI QX60, downstream right, to 09/2014
• Fits 2015 Nissan Pathfinder, downstream right, to 09/2014
• Fits 2015 Nissan Quest, downstream rear, to 08/2014
• Fits 2014 INFINITI QX60, downstream right
• Fits 2013-2014 Nissan Altima, downstream front
• Fits 2012-2014 Nissan Murano, downstream rear
• Fits 2012-2014 Nissan Murano, downstream front
• Fits 2013-2014 Nissan Pathfinder, downstream right
• Fits 2012-2014 Nissan Quest, downstream rear
• Fits 2013 INFINITI JX35, downstream right

Verify the connector, mounting location, and build date before installation. This oxygen sensor uses a threaded mount and a female connector, so matching the original sensor position is important for proper ECU operation. For Nissan Pathfinder and Nissan Altima applications, confirm whether the vehicle calls for downstream front or downstream right placement.

Quality Assurance

Walker Products OE sensors are developed as original-equipment replacement parts for specific applications and are manufactured under Automotive ISO9001/TS 16949 quality systems. Walker Products has supplied engine management and fuel system components since 1946, with a focus on application-specific fitment and diagnostic feedback.