Bosch 16752 Oxygen Sensor - Upstream

Bosch Actual OE Oxygen Sensor 16752

Bosch 16752 is a narrow-band heated oxygen sensor built for precise air-fuel-ratio feedback to the ECU. It supports stable combustion control and emissions management for upstream applications on select Chevrolet Sonic, Chevrolet Trax, and Buick Encore models.

Key Features

• Actual OE Oxygen Sensor from Bosch Actual OE Oxygen Sensor line
• Narrow-band heated O2 sensor for upstream exhaust monitoring
• Specific-fit design with 4-wire harness and oblong female connector
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Wiring harness included; harness length measures 14.8 in
• Metal housing built for high-temperature and vibration exposure
• Part number 16752 for direct catalog lookup and service matching

Product Details

Bosch developed this switching-type oxygen sensor to deliver accurate lambda feedback under changing engine loads and temperatures. The sensor uses a ceramic element and controlled heater operation to reach operating temperature quickly, helping the ECU enter closed-loop operation sooner. Bosch 16752 is a standard replacement oxygen sensor for upstream locations and is listed for 2013-2016 Chevrolet Sonic, 2013-2014 Chevrolet Trax, and 2013-2014 Buick Encore applications. This part cross-references 55563348 for the same application.

What It Helps Address

• Check engine light concerns related to oxygen sensor performance
• Unstable air-fuel ratio feedback at the upstream exhaust position
• Delayed closed-loop fuel control after startup
• Emissions test failures tied to sensor response or accuracy
• Rough combustion control caused by a worn narrow-band sensor

Installation Notes

Verify connector shape, wire count, thread size, and upstream location before installation. This Bosch 16752 sensor uses a threaded mount, female connector, and 4-wire configuration; confirm the vehicle harness matches the oblong connector and grey-connector note where applicable. For fitment, use the exact application listing: Fits 2014-2016 Chevrolet Sonic, Upstream; Fits 2013 Chevrolet Sonic, Upstream; Fits 2014 Chevrolet Trax, Upstream; Fits 2013 Chevrolet Trax, Upstream; Fits 2014 Buick Encore, Upstream; Fits 2013 Buick Encore, Upstream.

Quality Assurance

Bosch has more than five decades of OE oxygen sensor development, and this sensor reflects that OE-focused engineering approach with durable materials, heater control, and accurate signal output for service replacement use.