BDFHYK Oxygen Sensor Upstream O2, Compatible with Acura MDX RDX RL RLX TL TLX, Compatible with Honda Accord Accord Crosstour Crosstour, 18083, 365315G0A11 Replacement 1PCS

This BDFHYK upstream O2 sensor is an OE-style aftermarket replacement for verified Acura and Honda applications that cross-reference 18083 and the listed OE numbers. Before ordering, confirm the exact year, model, engine, original sensor number, upstream exhaust location, connector, wiring layout, lead length, and emissions configuration. Because upstream locations can differ between V6 exhaust layouts, do not infer a bank number from the product name alone. A Check Engine Light or stored code does not by itself confirm sensor failure.

18083 Upstream O2 Sensor Fitment for Acura and Honda

18083 Upstream O2 Sensor Interchange References

Replacement references include 18083, 365315G0A11, 36531R70A01, 36531R70A02, 365415G0A11, 36541R70A01, 36541R70A02, and 36541RV0A11. Match the original sensor number, connector, and harness before ordering.

18083 Upstream Sensor Position Check

This SKU is listed for upstream use. Do not assign a universal Bank 1 Sensor 1 or Bank 2 Sensor 1 label; the correct bank and exhaust location must be confirmed from vehicle-specific service information.

18083 O2 Sensor Diagnosis Before Replacement

Inspect the connector, wiring, heater circuit, related fuse, power and ground, exhaust leaks, intake or vacuum leaks, fuel pressure, injector operation, misfires, and related engine-control inputs. Fuel-trim or catalyst codes require diagnosis before replacing the sensor.

18083 O2 Sensor Installation Notes

• Allow the exhaust system 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 the 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 away from heat and moving parts.

18083 O2 Sensor Package Contents

• 1 × BDFHYK oxygen sensor

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