Escape oxygen sensors are position-specific — upstream (before cat) and downstream (after cat) units are not interchangeable.
Need help? Call +1 (341) 247-0423Ford Escape O2 sensors vary by engine (1.5L EcoBoost, 2.0L, 2.5L, hybrid) and sensor position — Bank 1 Sensor 1 vs. Bank 1 Sensor 2 use different thread lengths, connector types, and heating element specs. Using the wrong sensor triggers persistent check engine lights and failed emissions tests. We identify the correct upstream or downstream unit for your VIN, including wideband A/F sensors on newer turbo models.