Walker 250-241337 Oxygen Sensor - Downstream Left or Downstream Right

OE Base Oxygen Sensor for Ford Super Duty and F-150

Walker OE Base Sensor 250-241337 is a heated narrow-band oxygen sensor built for specific downstream applications. It is engineered as an OE-style replacement to deliver the diagnostic feedback the ECU expects on select Ford trucks, including Ford F-150 and Ford Super Duty models.

Key Features

• Heated narrow-band oxygen sensor for downstream exhaust monitoring
• 4-wire, 4-terminal design for the specified application
• M18 x 1.5 thread size
• OE Base Sensor line focused on direct-fit replacement coverage
• Built for ECU feedback on the matched vehicle position

Application Details

Walker Products 250-241337 is part of the OE Base Sensor line, which is aimed at application-specific replacement sensors for vehicles that rely on accurate exhaust feedback. This sensor is used in downstream positions on select Ford trucks, including the Ford F-150, Ford F-250 Super Duty, and Ford F-350 Super Duty. The narrow-band design and heated construction support proper sensor operation in the intended exhaust location.

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

What It Helps Address

• Check engine light related to downstream oxygen sensor performance
• Poor fuel economy caused by incorrect exhaust feedback
• Rough engine operation tied to sensor signal issues
• Increased exhaust emissions from a failing oxygen sensor
• Fault codes stored in the ECU for the affected sensor circuit

Installation Notes and Tips

Compatible With 2023-2025 Ford F-250 Super Duty, downstream right; 2023-2025 Ford F-350 Super Duty, downstream right; 2021-2023 Ford F-150, downstream right; 2022 Ford F-250 Super Duty, downstream left; and 2022 Ford F-350 Super Duty, downstream left. Verify the connector, wiring harness, and sensor location before installation, and inspect the exhaust bung threads for the correct M18 x 1.5 fitment. If the original sensor failed from wiring or connector damage, inspect those components before replacing the sensor.

Quality Assurance

Walker Products has produced engine management and fuel system components since 1946 and operates as an ISO 9001/TS 16949 certified company. The OE Base Sensor line is developed for application-specific fitment and ECU feedback requirements on the listed Ford truck platforms.