Walker 250-241307 Oxygen Sensor - Downstream

Walker OE Base Oxygen Sensor for Honda CR-V

Walker OE Base Sensor 250-241307 is a direct-fit, heated narrow-band oxygen sensor built for specific vehicle applications. It is engineered for the downstream position on 2017-2019 Honda CR-V models and provides the ECU with the feedback needed for emissions and fuel-control monitoring.

Key Features

• Specific-fit oxygen sensor for the downstream location
• Heated narrow-band design for standard replacement service
• 4-wire configuration with square connector and male connector gender
• Threaded mounting with M18 x 1.5 thread size
• 22 mm wrench size for service access
• Walker OE Base Sensor line focuses on OE-style replacement applications

Product Details

Walker Products 250-241307 is part of the OE Base Sensor line, which is built around application-specific fitment and sensor feedback requirements. This oxygen sensor is intended for 2017-2019 Honda CR-V downstream service and is designed to support the vehicle’s emissions monitoring system by reporting exhaust conditions to the ECU. If the original sensor is failing, the vehicle may store fault codes, run poorly, use more fuel, or illuminate the malfunction indicator light. For diagnosis, inspect the sensor, wiring harness, and connector for damage before replacement. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Check engine light related to downstream oxygen sensor performance
• Stored ECU fault codes tied to emissions monitoring
• Poor fuel economy caused by inaccurate exhaust feedback
• Rough engine operation linked to sensor signal issues
• Elevated exhaust emissions from a worn or damaged sensor

Installation Notes and Tips

Confirm the downstream location before ordering and match the connector shape, wire count, and thread size to the original part. Inspect the harness routing and connector terminals for heat damage, corrosion, or broken locking tabs. Use the correct 22 mm service tool and verify the M18 x 1.5 threaded mounting point is clean before installation. Fits 2017-2019 Honda CR-V, downstream. Fits 2017-2019 Honda CR-V, downstream. Fits 2017-2019 Honda CR-V, downstream.

Quality Assurance

Walker Products has produced engine management and oxygen sensor components since 1946 and operates as an ISO 9001/TS 16949 certified company. The OE Base Sensor line is built for application-specific replacement use and diagnostic feedback requirements on modern vehicles.