Bosch 16190 Oxygen Sensor - Downstream Right

Bosch 16190 Oxygen Sensor for LR4

Bosch 16190 is an Actual OE Oxygen Sensor built for precise air-fuel-ratio feedback to the ECU. It is a narrow-band heated sensor with a threaded mount, 4-wire harness, and OE-style connector layout for direct replacement service on select Land Rover applications.

Compatible With 2014-2016 Land Rover LR4, downstream right. This Bosch oxygen sensor is positioned after the secondary converter and is specified for the downstream right location on the LR4.

Key Features

• Actual OE Oxygen Sensor line from Bosch
• Narrow-band heated sensor for closed-loop fuel control
• 4-wire design with included wiring harness
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Rectangle male connector with blade terminals
• Specific-fit replacement for select Land Rover LR4 applications
• Part number 16190 for catalog and service reference

Product Details

Bosch 16190 uses advanced ceramic sensing elements and heater control to deliver stable signal output across changing exhaust temperatures. The sensor is engineered for accurate lambda measurement, quicker closed-loop response, and consistent operation under heat and vibration. For 2014-2016 Land Rover LR4, downstream right, this OE-style oxygen sensor supports emissions monitoring after the secondary converter and helps the engine management system maintain proper combustion control. Bosch 16190 is also referenced by OE number LR052426 for the same application.

Common Issues This Sensor Can Help Address

• Check engine light related to downstream oxygen sensor performance
• Incorrect air-fuel ratio readings reported to the ECU
• Slow oxygen sensor response during closed-loop operation
• Emissions test failures tied to sensor signal degradation
• Rough combustion control caused by an aging narrow-band sensor

Installation Notes and Tips

Verify the downstream right location before replacement and confirm the connector, thread size, and harness length match the original sensor. This unit uses a threaded mount and a 4-wire harness, so inspect the exhaust bung and wiring route for corrosion, heat damage, or connector wear before installation. For 2014-2016 Land Rover LR4 service, replace only the sensor specified for the downstream right position.

Quality Assurance

Bosch has decades of OE oxygen sensor development behind this design, and the Actual OE Oxygen Sensor line is built to OE-proven standards for accuracy and durability. The sensor uses high-temperature-resistant materials and heater control strategies intended to maintain reliable performance in demanding exhaust conditions.