BDFHYK Oxygen Sensor Upstream O2, Compatible with Buick Encore 2013-2014, Compatible with Chevrolet Sonic Trax l4 1.4L, 16752, 55563348 Replacement 1PCS

16752 Upstream Oxygen Sensor for Buick Encore and Chevrolet 1.4L Applications

This BDFHYK upstream oxygen sensor is an OE-style aftermarket replacement for selected 1.4L turbo Buick Encore, Chevrolet Sonic, and Chevrolet Trax applications that match 16752 or 55563348. It is intended for the upstream exhaust position on the listed applications. A chevy O2 sensor replacement should be selected by exact model year, engine, sensor position, OE reference, connector, and lead routing rather than vehicle name alone.

16752 Buick Encore, Chevrolet Sonic, and Trax Fitment

16752 Upstream O2 Sensor Replacement Numbers

• Product type: Oxygen sensor / O2 sensor
• Position: Upstream
• Engine: 1.4L L4 turbo gasoline
• Interchange references: 16752; 55563348
• Package: 1 sensor

Do not substitute a downstream sensor solely because the connector appears similar. The upstream oxygen sensor is selected by its calibrated application, physical configuration, and exhaust location.

Diagnosing the 16752 Upstream Oxygen Sensor

A stored fault code or Check Engine Light does not prove that the upstream oxygen sensor has failed. Inspect the connector, harness routing, heater power and ground where applicable, exhaust leaks, and related engine-running conditions before replacing parts. Confirm the sensor location from vehicle-specific service information because similar-looking sensors may be used in different positions.

Bad upstream O2 sensor symptoms can resemble intake leaks, fuel-pressure problems, injector faults, ignition misfires, wiring faults, or exhaust leaks. Review the stored DTC, fuel trims, wiring, and related engine data before replacement.

Installing the 16752 1.4L Upstream O2 Sensor

• Allow the exhaust system to cool completely before removal.
• Compare the old and replacement sensors before installation, including the OE reference, connector, lead routing, and physical configuration.
• Use an O2 sensor socket or suitable wrench; avoid impact tools on the sensor.
• Start the sensor by hand to reduce the risk of cross-threading the exhaust bung.
• Use anti-seize only when permitted by the sensor instructions, and keep compounds away from the sensing element.
• Route the harness away from hot exhaust surfaces, sharp edges, and moving parts, then tighten to the vehicle-specific specification.