Bosch 13498 Oxygen Sensor - Downstream Left or Downstream Right

Bosch Validated Oxygen Sensor for Land Rover

Bosch Validated Oxygen Sensor 13498 is a specific-fit, narrow-band heated O2 sensor built for precise air-fuel ratio feedback to the ECU. It is engineered for downstream applications on select Land Rover Range Rover, LR3, and Range Rover Sport models, helping maintain stable combustion control and lower emissions.

As part of the Bosch Validated Oxygen Sensor line, this sensor reflects Bosch’s long OE development history in oxygen sensing technology. The design uses a ceramic sensing element, controlled heater operation, and high-temperature materials to support consistent signal response in demanding exhaust conditions.

Key Features

• Part number 13498 Bosch oxygen sensor for specific Land Rover applications
• Narrow-band heated oxygen sensor with 4-wire configuration
• Threaded mounting with 18 mm thread size and 22 mm hex
• Specific-fit design with included wiring harness
• Rectangle male connector with blade terminals
• Built for downstream left and downstream right positions
• Standard replacement grade for direct service use

Detailed Description

Bosch 13498 is a downstream oxygen sensor designed to report exhaust oxygen content so the engine control module can adjust fuel delivery and maintain closed-loop operation. It is a narrow-band heated sensor with a threaded metal housing, 15.9 in overall length, and a 12.2 in wiring harness length for proper routing in the exhaust system. This Bosch Validated Oxygen Sensor is a direct service part for 2007-2009 Land Rover Range Rover, 2005-2006 Land Rover LR3, and 2006 Land Rover Range Rover Sport applications. If you are replacing a worn sensor on a Land Rover Range Rover or LR3, Bosch 13498 provides the OE-style fit and signal behavior expected for emissions-related service.

This part cross-references Bosch OE-style applications such as MHK500960 and MHK501060 for the same use case.

What It Helps Address

• Check engine light related to oxygen sensor performance
• Slow or inaccurate downstream O2 sensor signal
• Emissions test failures tied to sensor response issues
• Rough fuel control caused by degraded exhaust feedback
• Fault codes associated with heater circuit or sensor aging

Installation Notes and Tips

Confirm the downstream left or downstream right position before ordering, since Bosch 13498 is a specific-fit sensor. Verify the 18 mm thread size, 4-wire connector style, and harness routing against the original part. Use proper oxygen sensor service tools and inspect the exhaust bung threads before installation to ensure a secure seal.

Quality Assurance

Bosch has more than five decades of OE oxygen sensor development behind this design, and the Validated Oxygen Sensor line is built to deliver OE-proven performance for aftermarket service. Bosch 13498 is engineered for consistent operation under heat and vibration in emissions control applications.