Walker 250-241210 Oxygen Sensor - Downstream Rear

OE Oxygen Sensor for Nissan Quest

Walker Products OE 250-241210 is an oxygen sensor engineered as an original-equipment-style replacement for specific Nissan Quest applications. It is built for the downstream rear position and provides the ECU with the feedback needed for proper fuel control and emissions monitoring.

Fits 2015 Nissan Quest, downstream rear. Fits 2016-2017 Nissan Quest, downstream rear. Walker Products OE 250-241210 is a direct-fit oxygen sensor for these applications.

Key Features

• OE-style oxygen sensor for emission control system service
• Application-specific fitment for the downstream rear position
• Designed to deliver the diagnostic feedback required by the ECU
• Walker Products OE line for targeted vehicle coverage
• Part number 250-241210 for accurate ordering and lookup

Detailed Description

Walker Products OE 250-241210 is made for Nissan Quest models that use a downstream rear oxygen sensor. This sensor helps the engine management system monitor exhaust conditions after the catalytic converter, supporting correct air-fuel control and emissions diagnostics. The Walker Products OE line focuses on application-specific replacement parts, and this sensor is matched to the listed vehicle position for proper system communication.

For shoppers searching for a 2015 Nissan Quest downstream rear oxygen sensor or a 2016-2017 Nissan Quest rear oxygen sensor, this part number provides a direct reference point. The 250-241210 listing is also useful when replacing a sensor that has triggered fault codes, poor fuel economy, elevated emissions, or a malfunction indicator light.

What It Can Help Address

• Stored oxygen sensor fault codes in the ECU
• Illuminated malfunction indicator light related to the rear sensor
• Poor fuel economy caused by inaccurate exhaust feedback
• Rough engine operation tied to emissions sensor issues
• Increased exhaust emissions from a failing downstream sensor

Installation Notes and Tips

Confirm the vehicle is a 2015, 2016, or 2017 Nissan Quest with the downstream rear sensor position before ordering. Inspect the sensor connector, wiring harness, and surrounding exhaust components for heat damage or corrosion before installation. If the original sensor failed due to wiring or connector damage, correct that issue first so the replacement sensor can operate properly.

Quality Assurance

Walker Products has produced engine management and oxygen sensor components since 1946 and manufactures this part as an OE-style replacement for the listed application. The brand operates under Automotive ISO9001/TS 16949 certification and builds parts for specific vehicle fitment and ECU feedback requirements.