BDFHYK Oxygen Sensor Downstream O2, Compatible with Subaru Crosstrek Forester Impreza Legacy Outback XV Crosstrek H4 2.0L 2.5L, 18075, 22690AA960 Replacement 1PCS

This BDFHYK downstream O2 sensor is an OE-style aftermarket replacement for verified Subaru Crosstrek, Forester, Impreza, Legacy, Outback, and XV Crosstrek applications that cross-reference 18075, 22690AA960, or 22690AA96A. Before ordering, confirm the exact model year, 2.0L or 2.5L H4 engine, original sensor number, downstream exhaust location, connector, wiring layout, lead length, and emissions configuration. A Check Engine Light or stored OBD-II code alone does not prove sensor failure.

18075 Downstream O2 Sensor Fitment for Subaru 2.0L and 2.5L Models

18075 Subaru O2 Sensor Interchange References

Replacement references include 18075, 22690AA960, and 22690AA96A. Match the original sensor number with the exact Subaru application and downstream location.

18075 Downstream Sensor Position Check

This SKU is listed for downstream use. Do not assign a universal Bank/Sensor label from the downstream description alone. Confirm the original exhaust location with vehicle-specific service information.

18075 O2 Sensor Diagnosis Before Replacement

Inspect the connector, wiring, heater circuit, related fuse, exhaust leaks, fuel-control faults, misfires, and catalyst condition before replacement. P0420 or P0430 does not automatically prove that the downstream sensor is defective.

18075 O2 Sensor Installation Notes

• Allow the exhaust to cool before service.
• Use an O2 sensor socket or suitable wrench.
• Compare the replacement connector, lead length, and OE reference with the removed sensor.
• Inspect bung threads and start the sensor by hand.
• Use anti-seize only when permitted by the sensor instructions.
• Tighten to the applicable vehicle service specification and route the harness safely.

18075 O2 Sensor Package Contents

• 1 × BDFHYK oxygen sensor

Important: This is an OE-style aftermarket replacement, not a factory-branded part.