Maintain accurate exhaust monitoring and fuel management with this Genuine Nissan Rear Upper Oxygen Lambda Sensor, designed to suit Nissan Patrol GU Y61 models fitted with the TB48 4.8L petrol engine from 2006 onwards. This OEM oxygen sensor is installed in the exhaust system after the catalytic converter and measures oxygen levels within the exhaust gases, providing essential feedback to the Engine Control Unit (ECU) to monitor catalytic converter efficiency and emissions performance.

Over time, oxygen sensors can become contaminated or lose accuracy due to constant exposure to extreme exhaust temperatures, fuel residues and combustion by-products. A failing sensor can result in incorrect exhaust readings, reduced fuel efficiency, engine warning lights and incorrect ECU adjustments. Replacing it with a Genuine Nissan component restores accurate oxygen monitoring and helps maintain correct engine management operation.

Features & Benefits

• Genuine Nissan OEM part
• Rear upper oxygen sensor/lambda sensor
• Located after the catalytic converter
• Monitors oxygen levels within exhaust gases
• Provides accurate feedback to the ECU for emissions control
• Helps monitor catalytic converter efficiency
• Assists with maintaining correct fuel mixture adjustments
• Helps improve fuel economy and engine performance
• Manufactured with heat-resistant materials designed for harsh exhaust environments
• Factory calibrated specifically for TB48 engine applications
• Direct replacement for faulty, contaminated or inaccurate original sensors
• Genuine Nissan connector for correct plug-and-play installation
• Designed for reliable long-term performance

Vehicle Fitment

• Nissan Patrol GU Y61 TB48 2006 onwards

Please check your vehicle compatibility before purchasing. The TB48 engine uses different oxygen sensor configurations depending on year and position. Confirm the connector style and vehicle application before ordering, or contact us with your VIN if you require assistance confirming fitment.

Common Signs You May Need to Replace Your Rear Upper Oxygen Sensor

• Check engine light illuminated
• Oxygen sensor fault codes stored in the ECU
• Reduced fuel economy
• Poor engine performance
• Incorrect fuel mixture readings
• Increased exhaust emissions
• Rough running or inconsistent engine operation
• Sensor contamination from exhaust deposits
• Exhaust repairs or catalytic converter replacement being carried out

Replacing a worn Genuine Nissan Rear Upper Oxygen Lambda Sensor helps maintain accurate exhaust monitoring, efficient fuel control and reliable emissions system operation in your Nissan Patrol GU Y61 TB48. Choosing a Genuine Nissan OEM replacement ensures precise fitment, dependable performance and the quality expected from original factory engine management components.