Walker 250-241306 Oxygen Sensor - Downstream, Downstream Left or Downstream Right

Walker OE Base Oxygen Sensor for Ford and Lincoln

Walker OE Base Sensor 250-241306 is a specific-fit, heated narrow-band oxygen sensor built for downstream applications on select Ford Transit, Bronco, Edge, Ranger, and Lincoln Nautilus models. It is engineered to deliver the diagnostic feedback the ECU expects, helping maintain proper fuel control and emissions monitoring.

Key Features

• Heated narrow-band oxygen sensor for downstream use
• Specific-fit design for the listed vehicle applications
• 4-wire configuration with female oblong connector
• M18 x 1.5 thread size and 22 mm wrench size
• OE Base Sensor line for application-specific replacement

Product Details

Walker Products develops engine management and oxygen/air-fuel sensors as OE-style replacement parts for vehicle-specific fitment and system feedback. Part number 250-241306 is designed for downstream placement on compatible Ford Transit-150, Transit-250, Transit-350, Transit-350 HD, Bronco, Edge, Ranger, and Lincoln Nautilus applications. This sensor supports the ECU’s emissions monitoring strategy and is built around the listed connector, thread, and wire specifications for direct replacement service. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Sensor May Address

• Illuminated malfunction indicator light related to oxygen sensor performance
• Poor engine operation caused by inaccurate exhaust feedback
• Increased fuel consumption from incorrect air-fuel control data
• Higher exhaust emissions from a degraded downstream sensor
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes and Tips

Verify the vehicle’s year, model, and sensor position before installation. Confirm the connector shape, wire count, thread size, and wrench size match the original sensor, and inspect the wiring harness and connector for damage before replacement. For the listed fitments, use the exact downstream position shown for each application, including downstream right, downstream left, or downstream as specified.

Quality Assurance

Walker Products has supplied engine management and fuel system components since 1946 and operates as an ISO 9001/TS 16949 certified company. The OE Base Sensor line is built for application-specific replacement and diagnostic system feedback requirements.