Bosch 13476 Oxygen Sensor - Upstream

Bosch Wideband O2 Sensor for Land Rover

Bosch Validated Oxygen Sensor 13476 is a specific-fit wideband air-fuel ratio sensor for select Land Rover applications. It delivers continuous lambda measurement for precise fuel control, fast response, and stable operation under changing load and temperature conditions.

Key Features

• Wideband A/F oxygen sensor for detailed air-fuel ratio feedback
• Heated design for faster sensor warm-up and consistent operation
• Specific-fit replacement with 4-wire configuration and rectangular male connector
• Threaded mounting with 18 mm thread diameter and 22 mm hex size
• Metal housing with integrated wiring harness and 5.8 in harness length
• OE-developed Bosch Validated Oxygen Sensor line

Product Details

Bosch Part Number 13476 is built as a standard replacement wideband oxygen sensor for vehicles that rely on precise upstream mixture monitoring. Bosch pioneered the planar pump-cell wideband design used in modern engine management, and this sensor follows that OE-based approach with optimized heater control, fast light-off, and durable ceramic construction. It is a direct-fit solution for 2005-2009 Land Rover LR3, Upstream, and 2006-2009 Land Rover Range Rover Sport, Upstream. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Sensor Can Address

• Check engine light related to upstream oxygen sensor performance
• Incorrect air-fuel ratio readings at the ECU
• Rough idle or hesitation caused by inaccurate mixture feedback
• Reduced fuel economy from poor fuel trim control
• Higher emissions from delayed or unstable sensor response

Installation Notes

Verify the connector shape, terminal count, thread size, and upstream location before installation. This Bosch 13476 sensor uses a threaded mount with a 4-wire harness and male rectangular connector, so the existing wiring and bung must match the vehicle application. For best results, inspect the exhaust threads and wiring routing before tightening the sensor to specification.

Quality Assurance

Bosch draws on more than five decades of OE oxygen sensor development, and the Validated Oxygen Sensor line is built to the same type of engineering standards used in modern engine management systems. Bosch Part Number 13476 is designed for reliable upstream air-fuel measurement in compatible Land Rover applications.