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Porsche // Boxster 986/987/981 (1997-2016) // Boxster 987 MKII 2.9L 2009-12
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Lambda Sensor, AFTER Catalytic Converter. Porsche 957 Cayenne 4.8L S / GTS / TURBO / TURBO S 2007-10 - 958906262Q
958906262Q/2
Vehicle Group
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
Information
Lambda Sensor, AFTER Catalytic Converter.
Diagram Ref No 21
Symptoms Of Wear Or Failure:
Why Replacement Matters:
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
958906262Q
The product you are viewing cross references to these numbers
The OE MATCH Lambda Sensor, After Catalytic Converter is a critical emissions control and engine management component designed to monitor the oxygen content of exhaust gases after they have passed through the catalytic converter. Also known as a post-catalyst oxygen sensor, it provides feedback to the engine control unit (ECU) regarding catalytic converter efficiency and overall emissions system performance.
Sold Each.
x2 Required Per Car.
Fits:
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
Diagram Ref No 21
This OE MATCH lambda sensor helps ensure the vehicle meets emissions standards while allowing the ECU to continuously monitor and optimise engine operation. By accurately measuring oxygen levels in the exhaust stream, it supports efficient emissions control and helps identify catalytic converter performance issues before they become more serious.
What This Product Does:
- Monitors oxygen levels in exhaust gases after the catalytic converter
- Measures catalytic converter efficiency and performance
- Provides real-time feedback to the engine control unit (ECU)
- Supports emissions control system monitoring
- Helps maintain compliance with emissions regulations
- Assists the ECU in diagnosing exhaust and catalyst-related faults
Symptoms Of Wear Or Failure:
- Check engine light illumination
- Catalytic converter efficiency fault codes
- Failed emissions or MOT tests
- Increased exhaust emissions
- Reduced fuel economy in some cases
- Engine management warning messages
- Oxygen sensor-related fault codes
- Incorrect catalytic converter monitoring data
Why Replacement Matters:
- Restores accurate exhaust oxygen monitoring
- Ensures proper catalytic converter efficiency monitoring
- Helps maintain emissions compliance and MOT readiness
- Prevents persistent engine management warning lights
- Supports efficient engine management system operation
- Allows accurate diagnosis of catalyst and exhaust system performance
- Reduces the risk of increased emissions and environmental impact
- Maintains long-term reliability of the emissions control system
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
958906262Q
958906262Q
95560617800
The product you are viewing cross references to these numbers
Price: £75.00
In stock
Related products
Vehicle Group
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Information
Lambda oxygen sensor.
Fits:
Porsche Boxster 987 MK2 All (BEFORE Catalytic Converter)
Porsche Boxster 987C MK2 All (BEFORE Catalytic Converter)
Function:
The Oxygen Sensor (also known as Lambda Sensor) is located in the exhaust manifold and measures the amount of unburned oxygen in your engine's exhaust. Based on the amount of oxygen, it sends a signal to your engine computer which then adjusts the air/fuel mixture for optimum engine performance and emission control.
Failure Symptoms:
- Excessive fuel consumption, a faulty oxygen sensor can waste 30% of your fuel.
- Driveability problems, such as engine surging or hesitation.
- High hydrocarbon emissions, failing an emissions inspection.
- The engine warning light may be on or service flag displayed.
- The ecu/computer stores a mixture-related fault code.
When the oxygen sensor has stopped functioning completely, the catalytic converter may overheat and fail
Maintenance/Service:
- Test and/or replace every 30,000 miles.
- Perform periodic emission checks.
- Watch out for service light.
Vehicle manufacturers recommend periodic inspection and replacement of oxygen sensor.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A160612302
The product you are viewing cross references to these numbers
Fits:
Porsche Boxster 987 MK2 All (BEFORE Catalytic Converter)
Porsche Boxster 987C MK2 All (BEFORE Catalytic Converter)
Function:
The Oxygen Sensor (also known as Lambda Sensor) is located in the exhaust manifold and measures the amount of unburned oxygen in your engine's exhaust. Based on the amount of oxygen, it sends a signal to your engine computer which then adjusts the air/fuel mixture for optimum engine performance and emission control.
Failure Symptoms:
- Excessive fuel consumption, a faulty oxygen sensor can waste 30% of your fuel.
- Driveability problems, such as engine surging or hesitation.
- High hydrocarbon emissions, failing an emissions inspection.
- The engine warning light may be on or service flag displayed.
- The ecu/computer stores a mixture-related fault code.
When the oxygen sensor has stopped functioning completely, the catalytic converter may overheat and fail
Maintenance/Service:
- Test and/or replace every 30,000 miles.
- Perform periodic emission checks.
- Watch out for service light.
Vehicle manufacturers recommend periodic inspection and replacement of oxygen sensor.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A160612302
9A160612302
9A160612301
0258017224
The product you are viewing cross references to these numbers
Price: £323.07
Orderable
Vehicle Group
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Information
Lambda oxygen sensor.
Fits:
Porsche Boxster 987 MK2 All (AFTER Catalytic Converter)
Porsche Boxster 987C MK2 All (AFTER Catalytic Converter)
Porsche 997 GT3/GT3RS 2007-2011 All (AFTER Catalytic Converter)
Function:
The Oxygen Sensor (also known as Lambda Sensor) is located in the exhaust manifold and measures the amount of unburned oxygen in your engine's exhaust. Based on the amount of oxygen, it sends a signal to your engine computer which then adjusts the air/fuel mixture for optimum engine performance and emission control.
Failure Symptoms:
• Excessive fuel consumption, a faulty oxygen sensor can waste 30% of your fuel.
• Driveability problems, such as engine surging or hesitation.
• High hydrocarbon emissions, failing an emissions inspection.
• The engine warning light may be on or service flag displayed.
• The ecu/computer stores a mixture-related fault code.
• When the oxygen sensor has stopped functioning completely, the catalytic converter may overheat and fail
Maintenance / Service:
• Test and/or replace every 30,000 miles.
• Perform periodic emission checks.
• Watch out for service light.
• Vehicle manufacturers recommend periodic inspection and replacement of oxygen sensor.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A160612401
The product you are viewing cross references to these numbers
Fits:
Porsche Boxster 987 MK2 All (AFTER Catalytic Converter)
Porsche Boxster 987C MK2 All (AFTER Catalytic Converter)
Porsche 997 GT3/GT3RS 2007-2011 All (AFTER Catalytic Converter)
Function:
The Oxygen Sensor (also known as Lambda Sensor) is located in the exhaust manifold and measures the amount of unburned oxygen in your engine's exhaust. Based on the amount of oxygen, it sends a signal to your engine computer which then adjusts the air/fuel mixture for optimum engine performance and emission control.
Failure Symptoms:
• Excessive fuel consumption, a faulty oxygen sensor can waste 30% of your fuel.
• Driveability problems, such as engine surging or hesitation.
• High hydrocarbon emissions, failing an emissions inspection.
• The engine warning light may be on or service flag displayed.
• The ecu/computer stores a mixture-related fault code.
• When the oxygen sensor has stopped functioning completely, the catalytic converter may overheat and fail
Maintenance / Service:
• Test and/or replace every 30,000 miles.
• Perform periodic emission checks.
• Watch out for service light.
• Vehicle manufacturers recommend periodic inspection and replacement of oxygen sensor.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A160612401
9A160612401
9A160612400
0258010147
The product you are viewing cross references to these numbers
Price: £85.00
In stock
Vehicle Group
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche Boxster T 718 2.0L Manual (300 Bhp) 01/2019>>
- Porsche Boxster T 718 2.0L PDK (300 Bhp) 01/2019>>
- Porsche Boxster GTS 718 2.5L Manual (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 2.5L PDK (365 Bhp) 05/2017>>
- Porsche Boxster GTS 718 4.0L Manual (400 Bhp) 01/2019>>
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
- Porsche Boxster Spyder / Spyder RS 718 4.0L 01/2019>>
- Porsche Boxster 25 Years 718 4.0L Manual (400 Bhp) 01/2020>>
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
- Porsche 991.1 R 4.0L (500 Bhp) 2016
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
- Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
- Porsche Cayman T 718 2.0L Manual (300 Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
- Porsche Cayman GT4 Clubsport
- Porsche Cayman GT4 RS Clubsport 2020-2024
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
Information
Screw plug for lambda hole, M18x1.5 mm.
Fits:
Porsche 924S 2.5L 1987-88 (Engine M44.09/M44.10)
Porsche 944 2.5L 1987-90 (Engine M44.09/M44.10)
Porsche 944 Turbo 2.5L 1985-91
Porsche 944S 2.5L 1986-88 (Engine M44.40)
Porsche 944 2.7L 1988-89
Porsche 944 3.0L 1988-91
Porsche 996 GT3 3.6L 1999-05
Porsche 968 3.0L 1991-95
Porsche 986 Boxster 2.5L 1996-99 (Engine M96.20)
Porsche 986 Boxster S 2.7L-3.2L 1999-04
Porsche 993 3.6L-3.8L 1993-97
Porsche 997 3.6L 2004-08 (Engine M95.05)
Porsche 997 3.8L 2004-08 (Engine M97.01)
Click 'Zoom in' for large parts diagram.
Diagram ref no 20
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90021901500
The product you are viewing cross references to these numbers
Fits:
Porsche 924S 2.5L 1987-88 (Engine M44.09/M44.10)
Porsche 944 2.5L 1987-90 (Engine M44.09/M44.10)
Porsche 944 Turbo 2.5L 1985-91
Porsche 944S 2.5L 1986-88 (Engine M44.40)
Porsche 944 2.7L 1988-89
Porsche 944 3.0L 1988-91
Porsche 996 GT3 3.6L 1999-05
Porsche 968 3.0L 1991-95
Porsche 986 Boxster 2.5L 1996-99 (Engine M96.20)
Porsche 986 Boxster S 2.7L-3.2L 1999-04
Porsche 993 3.6L-3.8L 1993-97
Porsche 997 3.6L 2004-08 (Engine M95.05)
Porsche 997 3.8L 2004-08 (Engine M97.01)
Click 'Zoom in' for large parts diagram.
Diagram ref no 20
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90021901500
90021901500
The product you are viewing cross references to these numbers
Price: £6.50
In stock
Vehicle Group
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Information
Lambda oxygen sensor.
Fits:
Porsche Boxster 987 MK2 All (AFTER Catalytic Converter)
Porsche Boxster 987C MK2 All (AFTER Catalytic Converter)
Porsche 997 GT3/GT3RS 2007-2011 All (AFTER Catalytic Converter)
Function:
The Oxygen Sensor (also known as Lambda Sensor) is located in the exhaust manifold and measures the amount of unburned oxygen in your engine's exhaust. Based on the amount of oxygen, it sends a signal to your engine computer which then adjusts the air/fuel mixture for optimum engine performance and emission control.
Failure Symptoms:
- Excessive fuel consumption, a faulty oxygen sensor can waste 30% of your fuel.
- Driveability problems, such as engine surging or hesitation.
- High hydrocarbon emissions, failing an emissions inspection.
- The engine warning light may be on or service flag displayed.
- The ecu/computer stores a mixture-related fault code.
When the oxygen sensor has stopped functioning completely, the catalytic converter may overheat and fail
Maintenance/Service:
- Test and/or replace every 30,000 miles.
- Perform periodic emission checks.
- Watch out for service light.
Vehicle manufacturers recommend periodic inspection and replacement of oxygen sensor.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A160612401
The product you are viewing cross references to these numbers
Fits:
Porsche Boxster 987 MK2 All (AFTER Catalytic Converter)
Porsche Boxster 987C MK2 All (AFTER Catalytic Converter)
Porsche 997 GT3/GT3RS 2007-2011 All (AFTER Catalytic Converter)
Function:
The Oxygen Sensor (also known as Lambda Sensor) is located in the exhaust manifold and measures the amount of unburned oxygen in your engine's exhaust. Based on the amount of oxygen, it sends a signal to your engine computer which then adjusts the air/fuel mixture for optimum engine performance and emission control.
Failure Symptoms:
- Excessive fuel consumption, a faulty oxygen sensor can waste 30% of your fuel.
- Driveability problems, such as engine surging or hesitation.
- High hydrocarbon emissions, failing an emissions inspection.
- The engine warning light may be on or service flag displayed.
- The ecu/computer stores a mixture-related fault code.
When the oxygen sensor has stopped functioning completely, the catalytic converter may overheat and fail
Maintenance/Service:
- Test and/or replace every 30,000 miles.
- Perform periodic emission checks.
- Watch out for service light.
Vehicle manufacturers recommend periodic inspection and replacement of oxygen sensor.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A160612401
9A160612400
9A160612401
9A160612400
The product you are viewing cross references to these numbers
Price: £323.07
Orderable