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O-Ring for brake booster vacuum pump. Porsche Boxster / Cayman / 997.2 / 991
Code: 99970150440
Vehicle Group
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- 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 Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- 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
Information
O-Ring for brake booster vacuum pump
Fits:
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2012-16
Porsche 981SP Boxster Spyder 2016
Porsche 987C.2 Cayman 2009-13
Porsche 981C Cayman 2014-16
Porsche 981C Cayman GT4 2016
Porsche 997.2 Carrera 2009-12
Porsche 997 Turbo / Turbo S 2010-13
Porsche 991.1 2012-16
Porsche 991.1 TURBO 2014>>
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Diagram ref no 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970150440
The product you are viewing cross references to these numbers
Fits:
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2012-16
Porsche 981SP Boxster Spyder 2016
Porsche 987C.2 Cayman 2009-13
Porsche 981C Cayman 2014-16
Porsche 981C Cayman GT4 2016
Porsche 997.2 Carrera 2009-12
Porsche 997 Turbo / Turbo S 2010-13
Porsche 991.1 2012-16
Porsche 991.1 TURBO 2014>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970150440
99970150440
240.670
The product you are viewing cross references to these numbers
Price: €6.04
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12 Month Warranty
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O-Ring for brake booster vacuum pump. Porsche Boxster / Cayman / 997.2 / 991
Code: 99970150440/1
Vehicle Group
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- 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 Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- 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
Information
O-Ring for brake booster vacuum pump
Fits:
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2012-16
Porsche 981SP Boxster Spyder 2016
Porsche 987C.2 Cayman 2009-13
Porsche 981C Cayman 2014-16
Porsche 981C Cayman GT4 2016
Porsche 997.2 Carrera 2009-12
Porsche 997 Turbo / Turbo S 2010-13
Porsche 991.1 2012-16
Porsche 991.1 TURBO 2014>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970150440
The product you are viewing cross references to these numbers
Fits:
Porsche 987.2 Boxster 2009-12
Porsche 981 Boxster 2012-16
Porsche 981SP Boxster Spyder 2016
Porsche 987C.2 Cayman 2009-13
Porsche 981C Cayman 2014-16
Porsche 981C Cayman GT4 2016
Porsche 997.2 Carrera 2009-12
Porsche 997 Turbo / Turbo S 2010-13
Porsche 991.1 2012-16
Porsche 991.1 TURBO 2014>>
Click 'Zoom in' for large parts diagram.
Diagram ref no 11
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970150440
99970150440
240.670
The product you are viewing cross references to these numbers
Price: €2.22
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12 Month Warranty
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O-Ring for vacuum pump 54 x 2,5. Porsche 987 / 981 Boxster / Cayman / 997 / 991
Code: 99970150540
Vehicle Group
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- 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 Turbo 2010-13
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- Porsche 991.1 Turbo S 3.8L (560Bhp) 2014-16
- 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 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
Information
O-Ring for vacuum pump.
Fits:
Porsche 987.2 Boxster / Boxster S - 2009 to 2012
Porsche 987.2 Cayman / Cayman S - 2009 to 2012
Porsche 981 Boxster - 2012 to 2016
Porsche 981 Boxster Spyder - 2016
Porsche 981 Cayman - 2013 to 2016
Porsche 981 Cayman GT4 - 2016
Porsche 997.2 - 2009 to 2012
Porsche 997.2 turbo - 2009 to 2012
Porsche 991.1 - 2012 to 2016
Porsche 991 turbo - 2014 to 2020
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970150540
The product you are viewing cross references to these numbers
Fits:
Porsche 987.2 Boxster / Boxster S - 2009 to 2012
Porsche 987.2 Cayman / Cayman S - 2009 to 2012
Porsche 981 Boxster - 2012 to 2016
Porsche 981 Boxster Spyder - 2016
Porsche 981 Cayman - 2013 to 2016
Porsche 981 Cayman GT4 - 2016
Porsche 997.2 - 2009 to 2012
Porsche 997.2 turbo - 2009 to 2012
Porsche 991.1 - 2012 to 2016
Porsche 991 turbo - 2014 to 2020
Diagram ref no 12
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99970150540
99970150540
The product you are viewing cross references to these numbers
Price: €9.66
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.jpg?width=197 "Vacuum pump for brake servo. Porsche 987/981 Boxster / 987C/981C Cayman / 997 / 991 - 9A111009005, 9A111009004, 9A111009003, 9A111009002, 9A111009006, 9A111009007, 9A111009008")
Vacuum pump for brake servo. Porsche 987/981 Boxster / 987C/981C Cayman / 997 / 991
Code: 9A111009008
Vehicle Group
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- 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 Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- 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
Information
Vacuum pump for the brake servo.
It’s a vacuum pump that generates and supplies vacuum pressure to the brake booster (servo), helping amplify the driver’s brake pedal force. Without its assistance, braking becomes harder and less responsive.
Fits:
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 987C.2 Cayman 2009 - 2012
Porsche 981C Cayman 2014 - 2016
Porsche 997.2 2009 - 2012
Porsche 997.2 Turbo / Turbo S 2010 - 2013
Porsche 991.1 2012 - 2016
Porsche 991.1 Turbo 2014 - 2017
Diagram ref no 10
The pump connects between the engine and the brake booster, often located in the engine bay near the intake or accessory mounting area.
What this pump does:
• Creates vacuum for the brake booster so less pedal effort is required
• Maintains consistent vacuum under engine load and conditions to support stable braking
• Ensures the brake servo has the suction needed for efficient braking response
A failing vacuum pump reduces or loses the vacuum needed by the brake booster, leading to a hard, heavy brake pedal and reduced braking assist If it leaks, cracks, or loses suction over time, braking performance and safety degrade. Replacing it with a genuine unit ensures proper vacuum levels, restoring smooth, efficient braking and maintaining safety and reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A111009008
The product you are viewing cross references to these numbers
It’s a vacuum pump that generates and supplies vacuum pressure to the brake booster (servo), helping amplify the driver’s brake pedal force. Without its assistance, braking becomes harder and less responsive.
Fits:
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 987C.2 Cayman 2009 - 2012
Porsche 981C Cayman 2014 - 2016
Porsche 997.2 2009 - 2012
Porsche 997.2 Turbo / Turbo S 2010 - 2013
Porsche 991.1 2012 - 2016
Porsche 991.1 Turbo 2014 - 2017
Diagram ref no 10
The pump connects between the engine and the brake booster, often located in the engine bay near the intake or accessory mounting area.
What this pump does:
• Creates vacuum for the brake booster so less pedal effort is required
• Maintains consistent vacuum under engine load and conditions to support stable braking
• Ensures the brake servo has the suction needed for efficient braking response
A failing vacuum pump reduces or loses the vacuum needed by the brake booster, leading to a hard, heavy brake pedal and reduced braking assist If it leaks, cracks, or loses suction over time, braking performance and safety degrade. Replacing it with a genuine unit ensures proper vacuum levels, restoring smooth, efficient braking and maintaining safety and reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A111009008
9A111009005
9A111009004
9A111009003
9A111009002
9A111009006
9A111009007
9A111009008
The product you are viewing cross references to these numbers
Price: €232.83
Orderable
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12 Month Warranty
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Vacuum pump for brake servo. Porsche 987/981 Boxster / 987C/981C Cayman / 997 / 991
Code: 9A111009008/1
Vehicle Group
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- 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 Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- 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
Information
Vacuum pump. this item comes with O-rings.
This high-quality vacuum pump is built specifically as a compatible unit for Porsche OE reference 9A111009007.
Fits:
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 987C.2 Cayman 2009 - 2012
Porsche 981C Cayman 2014 - 2016
Porsche 997.2 2009 - 2012
Porsche 997.2 Turbo / Turbo S 2010 - 2013
Porsche 991.1 2012 - 2016
Porsche 991.1 Turbo 2014 - 2017
Diagram ref no 10
Generates and supplies the vacuum pressure needed by the brake booster (servo), enabling the power brake system to assist the driver with lower pedal effort.
Maintains vacuum under varying engine conditions and loads to ensure consistent and reliable brake assistance
Why replacement matters:
• A failing or leaky pump causes loss of vacuum, resulting in a stiff brake pedal, degraded braking performance, and increased driver effort
• Replacing with this robust Pierburg unit restores proper vacuum levels and reliable assist, improving safety and driving feel
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A111009008
The product you are viewing cross references to these numbers
This high-quality vacuum pump is built specifically as a compatible unit for Porsche OE reference 9A111009007.
Fits:
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 987C.2 Cayman 2009 - 2012
Porsche 981C Cayman 2014 - 2016
Porsche 997.2 2009 - 2012
Porsche 997.2 Turbo / Turbo S 2010 - 2013
Porsche 991.1 2012 - 2016
Porsche 991.1 Turbo 2014 - 2017
Diagram ref no 10
Generates and supplies the vacuum pressure needed by the brake booster (servo), enabling the power brake system to assist the driver with lower pedal effort.
Maintains vacuum under varying engine conditions and loads to ensure consistent and reliable brake assistance
Why replacement matters:
• A failing or leaky pump causes loss of vacuum, resulting in a stiff brake pedal, degraded braking performance, and increased driver effort
• Replacing with this robust Pierburg unit restores proper vacuum levels and reliable assist, improving safety and driving feel
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A111009008
9A111009005
9A111009004
9A111009003
9A111009002
9A111009006
9A111009001
9A111009007
9A111009008
The product you are viewing cross references to these numbers
Price: €146.25
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12 Month Warranty
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Vacuum pump for brake servo. Porsche 987/981 Boxster / 987C/981C Cayman / 997 / 991
Code: 9A111009008/2
Vehicle Group
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- 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 Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- 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
Information
This vacuum pump is a component in the brake servo (brake booster) system in various Porsche models (Boxster/Cayman, 997, 991, etc.). It helps generate the vacuum needed by the brake booster so that the driver has power assistance when applying the brakes.
In many modern Porsche engines (especially at higher performance levels, forced induction, or in engines where manifold vacuum is insufficient under certain operating conditions), an auxiliary vacuum pump is used because the engine’s intake manifold vacuum alone may not always provide adequate or stable vacuum for the brake booster.
The pump is typically driven mechanically (via the engine belt, accessory drive, or via an electric drive depending on vehicle) and draws vacuum from a chamber, then supplies that vacuum to the brake booster. Because the brake booster relies on consistent vacuum, degradation or failure of this pump can lead to harder brake pedal efforts or weak assistance under certain conditions.
Loss of vacuum / reduced vacuum output As the pump wears, internal leaks (seals, vanes, diaphragms) reduce its ability to maintain the required vacuum level. This causes the brake servo to get less assist, making the pedal feel harder.
Fits:
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- 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 Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C2S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350Bhp) 2012-16
- Porsche 991.1 Carrera C4S 3.8L (400Bhp) 2012-16
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
- 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
Diagram ref no 10
This pump generates the vacuum required by the brake booster (servo), allowing the system to amplify pedal force for smooth, consistent braking. By maintaining the correct vacuum pressure under varying engine loads, it ensures stable braking response and driver confidence.
Why replacement matters:
- Intermittent vacuum supply. Pump may fail or fluctuate in output under certain engine speeds or loads, leading to inconsistent pedal feel.
- Mechanical wear / bearing failure. The internal rotating components, bearings, or drive shaft can wear, leading to noise, inefficiency, or eventual seizure.
- Leaks (external or internal). Seal failure can cause air leaks (vacuum loss) or allow unmetered air into the system, reducing servo effectiveness.
- Cracks, housing damage or corrosion. Over time, housing cracks or corrosion can affect integrity and result in leaks or mechanical failure.
- Failure of check valves / one-way valves. Some pump assemblies include check valves to maintain vacuum or prevent backflow; if these fail, vacuum can be lost.
- Age / fatigue. After many years and many duty cycles, material fatigue and seal degradation can degrade performance even without catastrophic failure.
- Associated component failure. Blocked vacuum lines, failed hoses, or clogged filters can mimic pump failure; sometimes the pump is replaced during diagnosis or when other parts are replaced.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A111009008
9A111009005
9A111009004
9A111009003
9A111009002
9A111009006
9A111009001
9A111009007
9A111009008
The product you are viewing cross references to these numbers
Price: €111.15
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