Details

• Brand:

  

  

• SKU:

  DY-1295

• Positions: Rear, Rear Lower, Left Rear, Left Lower, Right Rear, Right Lower
• Other Names:

  Motorcraft™ Lower Oxygen Sensor, Motorcraft™ Rear Oxygen Sensor, Sensor Exhaust Gas Oxygen

• Description:

  This genuine Motorcraft oxygen sensor is the downstream, rear-position post-catalyst unit that monitors how effectively the catalytic converter is scrubbing the exhaust. Mounted after the converter, it reports to the powertrain control module so the system can verify catalyst efficiency and complete its emissions readiness monitors. Motorcraft catalogs it as a lower/rear Oxygen Sensor. It fits 2015-2017 Ford applications running EcoBoost turbocharged engines, including F-150 with the 3.5L twin-turbo V6 and the 2.3L EcoBoost Mustang. A worn or contaminated downstream sensor typically illuminates the check engine light with catalyst-efficiency or oxygen-sensor codes, causes failed emissions or readiness testing, and may contribute to reduced fuel economy and hesitation as the module loses accurate exhaust feedback. Heat cycling, age, and oil or coolant contamination all degrade these sensors over time. Fit the correct Motorcraft replacement to restore proper monitoring, apply anti-seize to the threads only, torque to specification, and keep the harness clear of the exhaust and moving parts. Choosing the exact Motorcraft sensor ensures correct connector keying, wire count, and calibrated response for reliable long-term service.

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