Bosch 16134 Oxygen Sensor - Downstream or Downstream Right

Bosch Actual OE Oxygen Sensor

Bosch 16134 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 specific downstream applications on select Cadillac and Chevrolet models.

Key Features

• Actual OE Oxygen Sensor from Bosch
• Narrow-band heated oxygen sensor type
• Specific fit with threaded mounting
• 4-wire design with square connector and pin terminals
• Wiring harness included with 8.1 in harness length
• 18 mm thread size and 22 mm hex size
• Metal housing for high-temperature and vibration resistance

Product Details

Bosch 16134 uses a switching-type narrow-band design to measure exhaust oxygen content and send accurate feedback to the engine control unit. Bosch’s OE oxygen sensor development includes early thimble-style sensors and later planar narrowband designs that improved light-off speed, lambda accuracy, and closed-loop response. This Bosch Actual OE Oxygen Sensor is built with advanced ceramic elements, optimized heater control, and heat-resistant materials for consistent operation in demanding exhaust conditions. Fits 2010-2011 Cadillac CTS, downstream right; Fits 2010-2011 Cadillac CTS, downstream; Fits 2010-2011 Cadillac STS, downstream right; Fits 2010-2011 Chevrolet Camaro, downstream; Fits 2010-2011 Chevrolet Camaro, downstream right. This part cross-references 12616203 for the same application.

Common Issues This Part Can Address

• Fault codes related to oxygen sensor response or heater circuit performance
• Unstable air-fuel ratio feedback at the ECU
• Rough combustion control during closed-loop operation
• Increased emissions from inaccurate exhaust oxygen readings
• Delayed sensor response on downstream monitoring applications

Installation Notes and Tips

Verify the connector shape, terminal count, thread size, and downstream position before installation. Bosch 16134 is a specific-fit sensor with a threaded mount, so matching the vehicle application and sensor location is important for proper operation. Inspect the exhaust bung threads and wiring routing before tightening the sensor into place.

Quality Assurance

Bosch backs this oxygen sensor with more than five decades of OE development experience. The design reflects Bosch’s long-running OE supply expertise, with materials and heater control chosen for durable performance under thermal and vibration load.