Adapter Genuine Porsche part 9A110757590
Code: 9A110757590
Genuine Porsche part
Adapter
The product code 9A110757590 was also found on these diagrams
Additional information:
• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.
Before purchasing thoroughly check part to confirm compatibility.
• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.
Before purchasing thoroughly check part to confirm compatibility.
Vehicle Group
- We are unable to provide fitting details for this product at this time. Please contact us for further information.
Price: €40.34
Orderable - 14 - 28 Days
Related products
9A110750502
Product Information
Fits:
Porsche 997.2 Carrera 2009-12
Porsche 991.1 Carrera 2012-16 Not for X51 engine
Click 'Zoom in' for large parts diagram.
Diagram ref no 8
Related reference numbers
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9A110750502
The product you are viewing cross references to these numbers
Product Information
Crankcase vent line.
Fits:
Porsche 997.2 Carrera 2009-12
Porsche 991.1 Carrera 2012-16 Not for X51 engine
Click 'Zoom in' for large parts diagram.
Diagram ref no 8
Related reference numbers
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9A110750502
9A110750502
9A110750501
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Vehicle Group
Vehicle Group
- 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 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
Price: €269.98
Due In 22 Days
9A110750540
Product Information

Fits:
Porsche 997.2 Carrera S 3.8L 2009-12
For X51 engine only (Powerkit 250 kW)
Click 'Zoom in' for large parts diagram.
Diagram ref no 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110750540
The product you are viewing cross references to these numbers
Product Information
Crankcase vent line.
Fits:
Porsche 997.2 Carrera S 3.8L 2009-12
For X51 engine only (Powerkit 250 kW)
Click 'Zoom in' for large parts diagram.
Diagram ref no 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110750540
9A110750540
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
Price: €275.74
Orderable - 14 to 28 Days
9A110753271
Product Information

Fits:
Porsche 991.1 turbo - 2012 to 2016
For engine code A171
Related reference numbers
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9A110753271
The product you are viewing cross references to these numbers
Product Information
Crankcase breather hose cylinders 4-6. 
Fits:
Porsche 991.1 turbo - 2012 to 2016
For engine code A171
Click 'Zoom in' for large parts diagram.
Diagram ref no 1
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Related, superseded, cross reference or alternative numbers for comparison.
9A110753271
9A110753270
9A110753271
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Vehicle Group
Vehicle Group
- Porsche 991.1 Turbo 3.8L (520bhp) 2014-16
Price: €203.73
Orderable - 14 to 28 Days
9A110752020
Product Information

Fits:
Porsche 981 Boxster / Boxster S - 2012 to 2016
Porsche 981 Spyder - 2016
Porsche 981 Cayman / Cayman S - 2013 to 2016
Porsche 981 Cayman GT4 - 2016
Click 'Zoom in' for large parts diagram.
Diagram ref no 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110752020
The product you are viewing cross references to these numbers
Product Information
Crankcase breather hose. 
Fits:
Porsche 981 Boxster / Boxster S - 2012 to 2016
Porsche 981 Spyder - 2016
Porsche 981 Cayman / Cayman S - 2013 to 2016
Porsche 981 Cayman GT4 - 2016
Click 'Zoom in' for large parts diagram.
Diagram ref no 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110752020
9A110752020
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
Price: €98.37
In Stock - 24 Hour Dispatch
9A110752002
Product Information
A factory-original crankcase vent hose that forms part of the engine’s PCV / AOS ventilation network, ensuring vapour is properly directed for oil separation and recirculation.
Fits:
Porsche 987.2 Boxster 2009 - 2012
Porsche 987.2 Cayman 2009 - 2012
Diagram ref no 4
This breather hose:
• Provides a sealed, correct-diameter path for crankcase gases
• Prevents oil vapour from escaping into the engine bay
• Works with the AOS to keep oil mist out of the intake tract
• Helps maintain stable crankcase vacuum and correct internal pressure
• Protects the engine from oil contamination, excessive oil consumption, and carbon build-up
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110752002
The product you are viewing cross references to these numbers
Product Information
Crankcase breather hose. A factory-original crankcase vent hose that forms part of the engine’s PCV / AOS ventilation network, ensuring vapour is properly directed for oil separation and recirculation.
Fits:
Porsche 987.2 Boxster 2009 - 2012
Porsche 987.2 Cayman 2009 - 2012
Diagram ref no 4
This breather hose:
• Provides a sealed, correct-diameter path for crankcase gases
• Prevents oil vapour from escaping into the engine bay
• Works with the AOS to keep oil mist out of the intake tract
• Helps maintain stable crankcase vacuum and correct internal pressure
• Protects the engine from oil contamination, excessive oil consumption, and carbon build-up
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110752002
9A110752002
9A110752001
The product you are viewing cross references to these numbers
Vehicle Group
Vehicle Group
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Price: €138.92
Due In 17 Days
9A110751501
Product Information
The 9A110751501 crankcase breather hose is a factory-specified part of the air/oil separation and PCV ventilation system used on water-cooled Porsche flat-6 engines fitted to Boxster and Cayman models. It connects the engine crankcase to the air/oil separator (AOS) or ventilation circuit, allowing crankcase gases to vent safely while directing blow-by vapours through the appropriate filtration pathway.
Fits:
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 981SP Boxster Spyder 2016
Porsche 987.2 Cayman 2009 - 2012
Porsche 981C Cayman 2014 - 2016
Porsche 981C Cayman GT4 2016
Diagram Ref No 3
A rubber/plastic crankcase breather hose, part of the PCV (positive crankcase ventilation) or AOS (air-oil separator) system, that channels crankcase vapours from the engine block to the AOS or intake/vent circuit.
This breather hose:
• Provides a secure, correctly routed pathway for crankcase blow-by gases and vapours.
• Maintains proper crankcase ventilation, helping to prevent pressure buildup, leaks, or oil-soaked vapour recirculating into the intake.
• Helps keep the intake tract and engine internals clean by ensuring only air (not oil mist) is drawn through the AOS/PCV system, preventing carbon build-up, oil deposits, smoky exhaust, and potential sensor contamination.
• Ensures durability and reliability under normal operating conditions, including heat, vibration, and exposure to crankcase gases and oil vapour - thanks to genuine Porsche-grade materials and manufacturing.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110751501
The product you are viewing cross references to these numbers
Product Information
Crankcase breather hose.The 9A110751501 crankcase breather hose is a factory-specified part of the air/oil separation and PCV ventilation system used on water-cooled Porsche flat-6 engines fitted to Boxster and Cayman models. It connects the engine crankcase to the air/oil separator (AOS) or ventilation circuit, allowing crankcase gases to vent safely while directing blow-by vapours through the appropriate filtration pathway.
Fits:
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 981SP Boxster Spyder 2016
Porsche 987.2 Cayman 2009 - 2012
Porsche 981C Cayman 2014 - 2016
Porsche 981C Cayman GT4 2016
Diagram Ref No 3
A rubber/plastic crankcase breather hose, part of the PCV (positive crankcase ventilation) or AOS (air-oil separator) system, that channels crankcase vapours from the engine block to the AOS or intake/vent circuit.
This breather hose:
• Provides a secure, correctly routed pathway for crankcase blow-by gases and vapours.
• Maintains proper crankcase ventilation, helping to prevent pressure buildup, leaks, or oil-soaked vapour recirculating into the intake.
• Helps keep the intake tract and engine internals clean by ensuring only air (not oil mist) is drawn through the AOS/PCV system, preventing carbon build-up, oil deposits, smoky exhaust, and potential sensor contamination.
• Ensures durability and reliability under normal operating conditions, including heat, vibration, and exposure to crankcase gases and oil vapour - thanks to genuine Porsche-grade materials and manufacturing.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110751501
9A110751501
The product you are viewing cross references to these numbers
Vehicle Group
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 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
Price: €123.82
In Stock - 24 Hour Dispatch
OILSEPKIT987.2
Product Information
This kit is the complete factory-specified breathing and oil-vapour separation system for the 987.2 Boxster and Cayman engines. It comprises the oil-separator unit, two vent valves, and all necessary hoses. Together, they ensure the crankcase is ventilated properly, blow-by vapours are separated, and only clean, oil-free air is recirculated or vented.
Fits:
Porsche 987.2 Boxster 2009 - 2012
Porsche 987C.2 Cayman 2009 - 2012
Diagram ref no 15 (Oil separator)
Diagram ref no 3, 4, 5 and 8
Kit Contents:
1× 0PB115099A - Air-Oil Separator (AOS) body / main separator unit
1× 9A110503801 - Crankcase Vent Valve (cylinders 4–6)
1× 9A110503900 - Crankcase Vent Valve (cylinders 1–3)
1× 9A110752002 - Crankcase Vent Hose / Breather Line
1× 9A110751501 - Additional Crankcase Breather Hose (or secondary vent line)
All parts are Genuine Porsche OEM - manufactured to original factory specifications for materials, dimensions, sealing and performance.
Recommended when replacing the AOS system, during engine maintenance, or when experiencing symptoms of AOS failure (oil consumption, smoke, vapour in intake, etc.).
Replace all components together as a kit for best sealing, balance, and long-term reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
OILSEPKIT987.2
The product you are viewing cross references to these numbers
Product Information
Oil / Air Separator kit.This kit is the complete factory-specified breathing and oil-vapour separation system for the 987.2 Boxster and Cayman engines. It comprises the oil-separator unit, two vent valves, and all necessary hoses. Together, they ensure the crankcase is ventilated properly, blow-by vapours are separated, and only clean, oil-free air is recirculated or vented.
Fits:
Porsche 987.2 Boxster 2009 - 2012
Porsche 987C.2 Cayman 2009 - 2012
Diagram ref no 15 (Oil separator)
Diagram ref no 3, 4, 5 and 8
Kit Contents:
1× 0PB115099A - Air-Oil Separator (AOS) body / main separator unit
1× 9A110503801 - Crankcase Vent Valve (cylinders 4–6)
1× 9A110503900 - Crankcase Vent Valve (cylinders 1–3)
1× 9A110752002 - Crankcase Vent Hose / Breather Line
1× 9A110751501 - Additional Crankcase Breather Hose (or secondary vent line)
All parts are Genuine Porsche OEM - manufactured to original factory specifications for materials, dimensions, sealing and performance.
Recommended when replacing the AOS system, during engine maintenance, or when experiencing symptoms of AOS failure (oil consumption, smoke, vapour in intake, etc.).
Replace all components together as a kit for best sealing, balance, and long-term reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
OILSEPKIT987.2
9A110704201
0PB115099A
9A110503800
9A110503801
9A110523800
9A110503900
9A110523902
9A110752001
9A110752002
9A110751501
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
1 x AOS Oil / Air Separator. Porsche 987/981 Boxster / 987/981 Cayman / 982 GTS 4.0L (0PB115099A
1 x Crankcase vent valve. Porsche 997.2 / 991 / Boxster / Cayman (9A110503801
1 x Crankcase vent valve. Porsche 997.2 / 991 / Boxster / Cayman (9A110503900
1 x Crankcase breather hose. Porsche 987.2 Boxster / Cayman 2009-12 (9A110752002
1 x Crankcase breather hose. Porsche 987.2/981 Boxster / Cayman (9A110751501
Vehicle Group
Vehicle Group
- Porsche Boxster 987 MKII 2.9L 2009-2012
- Porsche Boxster S 987 MKII 3.4L 2009-2012
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Price: €456.56
Orderable - 14 to 28 Days
OILSEPKIT981
Product Information
This kit is the complete factory-specified breathing and oil-vapour separation system for the 981 Boxster and Cayman engines. It comprises the oil-separator unit, two vent valves, and all necessary hoses. Together, they ensure the crankcase is ventilated properly, blow-by vapours are separated, and only clean, oil-free air is recirculated or vented.
Fits:
Porsche 981 Boxster 2012 - 2016
Porsche 981 Boxster Spyder 2016>>
Porsche 982 Boxster GTS 4.0L 2017>>
Porsche 981C Cayman 2014 - 2016
Porsche 981C Cayman GT4 2016>>
Porsche 982C Cayman GT4 4.0L 2017>>
Diagram ref no 12 (Oil separator)
Diagram ref no 1, 2, 12 and 14.
Kit Contents:
1× 0PB115099A - Air-Oil Separator (AOS) body / main separator unit
1× 9A110503801 - Crankcase Vent Valve (cylinders 4–6)
1× 9A110503900 - Crankcase Vent Valve (cylinders 1–3)
1× 9A110752020 - Crankcase Vent Hose / Breather Line
1× 9A110751501 - Additional Crankcase Breather Hose (or secondary vent line)
All parts are Genuine Porsche OEM - manufactured to original factory specifications for materials, dimensions, sealing and performance.
Recommended when replacing the AOS system, during engine maintenance, or when experiencing symptoms of AOS failure (oil consumption, smoke, vapour in intake, etc.).
Replace all components together as a kit for best sealing, balance, and long-term reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
OILSEPKIT981
The product you are viewing cross references to these numbers
Product Information
Oil / Air Separator kit.This kit is the complete factory-specified breathing and oil-vapour separation system for the 981 Boxster and Cayman engines. It comprises the oil-separator unit, two vent valves, and all necessary hoses. Together, they ensure the crankcase is ventilated properly, blow-by vapours are separated, and only clean, oil-free air is recirculated or vented.
Fits:
Porsche 981 Boxster 2012 - 2016
Porsche 981 Boxster Spyder 2016>>
Porsche 982 Boxster GTS 4.0L 2017>>
Porsche 981C Cayman 2014 - 2016
Porsche 981C Cayman GT4 2016>>
Porsche 982C Cayman GT4 4.0L 2017>>
Diagram ref no 12 (Oil separator)
Diagram ref no 1, 2, 12 and 14.
Kit Contents:
1× 0PB115099A - Air-Oil Separator (AOS) body / main separator unit
1× 9A110503801 - Crankcase Vent Valve (cylinders 4–6)
1× 9A110503900 - Crankcase Vent Valve (cylinders 1–3)
1× 9A110752020 - Crankcase Vent Hose / Breather Line
1× 9A110751501 - Additional Crankcase Breather Hose (or secondary vent line)
All parts are Genuine Porsche OEM - manufactured to original factory specifications for materials, dimensions, sealing and performance.
Recommended when replacing the AOS system, during engine maintenance, or when experiencing symptoms of AOS failure (oil consumption, smoke, vapour in intake, etc.).
Replace all components together as a kit for best sealing, balance, and long-term reliability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
OILSEPKIT981
9A110704201
0PB115099A
9A110503800
9A110503801
9A110523800
9A110503900
9A110523902
9A110751501
9A110752020
The product you are viewing cross references to these numbers
About kit
This kit is comprised of the following items:
1 x AOS Oil / Air Separator. Porsche 987/981 Boxster / 987/981 Cayman / 982 GTS 4.0L (0PB115099A
1 x Crankcase vent valve. Porsche 997.2 / 991 / Boxster / Cayman (9A110503801
1 x Crankcase vent valve. Porsche 997.2 / 991 / Boxster / Cayman (9A110503900
1 x Crankcase breather hose. Porsche 981 Boxster / 981 Cayman (9A110752020
1 x Crankcase breather hose. Porsche 987.2/981 Boxster / Cayman (9A110751501
Vehicle Group
Vehicle Group
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 981 Spyder 3.8L 2016
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman GT4 3.8L 2015-16
Price: €416.01
Orderable - 14 to 28 Days