Oil Pipes & Hoses

Coolant hose connector.
Fits from the underside of the oil filter bracket to the supply line.

Fits:
Porsche 997.1 Turbo 2007-09
Porsche 997.2 Turbo 2010-13

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Diagram ref no 2

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99710631570

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Oil breather line turbocharger oil tank. 

Fits:
Porsche 997.1 turbo / GT2 - 2007 to 2008
Porsche 997.2 GT2 RS - 2011 to 2012

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Diagram ref no 21 and 22


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9971072

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Oil pipe - oil pump to crankcase housing.


Fits:
Porsche 997.2 Carrera 2009-12
Porsche 997.2 Turbo 3.8L 2010-13
Porsche 991.1 Carrera 2012-16
Porsche 991 Turbo 2014-20
Porsche 981 Boxster 2012-16 
Porsche 981SP Boxster Spyder 2016
Porsche 981C Cayman 2014-16
Porsche 981C Cayman GT4 2016

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Diagram ref no 13


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9A110702501

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Oil tandem pump return line.

Fits:
Porsche 997.1 Turbo 2007-09
Porsche 997.2 Turbo 2010-13

This part number has been superseded from previous numbers:
99710701971, 99710701972

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Diagram ref no 11

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99710701974

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Oil tube pipe.

Fits:
Porsche 997.1 Turbo 3.6L 2007-09
Porsche 997.2 Turbo 3.6L 2010-11

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Diagram ref no 12

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99710731172

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Seal Ring – 9.25 x 1.78mm Turbocharger Oil Supply
Sold each - 6 required per car

Maintain the integrity of your Porsche's turbocharger lubrication system with this Turbocharger Oil Supply Seal Ring. Measuring 9.25 x 1.78mm, this precision-engineered sealing ring is designed to provide a reliable, leak-free seal within the turbocharger oil supply system on selected Porsche 997 Turbo and GT models.

Fits:

• Porsche 997 MK1 TURBO 2007-09
• Porsche 997 MK1 GT2 2007-09
• Porsche 997 MKII GT2 RS 2011-13

Diagram ref no 20

The turbocharger relies on a constant supply of clean, pressurised engine oil to lubricate and cool its high-speed bearings. Even the smallest oil leak at the supply connection can reduce lubrication efficiency, contaminate surrounding components and, if left unresolved, contribute to premature turbocharger wear. Replacing sealing rings whenever the oil supply line is removed is an essential part of good workshop practice.

Manufactured to Porsche's exacting standards, this Genuine Porsche seal ring offers the precise dimensions, material quality and sealing performance required for long-term reliability under the extreme temperatures and pressures experienced within the turbocharger oil circuit.

What Does the Turbocharger Oil Supply Seal Ring Do?

The seal ring creates a leak-proof connection between the turbocharger oil supply line and its mating components.

Its functions include:
Preventing engine oil leaks.

• Maintaining correct oil pressure to the turbocharger.
• Ensuring continuous lubrication of the turbocharger bearings.
• Preventing contamination of surrounding engine components.
• Supporting efficient turbocharger cooling.
• Helping maintain long-term turbocharger reliability.

A correctly sealing oil feed connection is critical to the health of any turbocharged Porsche engine.

Why Does the Seal Ring Need Replacing?

Seal rings are designed as service items and should always be renewed once disturbed.

Common reasons for replacement include:

• Removal of the turbocharger oil supply pipe.
• Turbocharger replacement or rebuild.
• Engine repair work.
• Heat cycling causing the seal to harden.
• Age-related loss of elasticity.
• Oil seepage around the oil feed connection.
• Preventative maintenance during engine servicing.

Replacing the seal ring is an inexpensive way to prevent oil leaks and protect expensive turbocharger components.

Symptoms of a Failing Seal Ring

Signs that the seal ring may require replacement include:

• Oil leaks around the turbocharger oil supply connection.
• Oil residue on surrounding engine components.
• Burning oil smell after driving.
• Light oil smoke from the engine bay.
• Gradual loss of engine oil.
• Visible deterioration of the sealing ring during servicing.

Any oil leak within the turbocharger lubrication system should be rectified immediately.

When Should the Seal Ring Be Replaced?

Replacement is recommended whenever:

• The turbocharger oil feed pipe is removed.
• A turbocharger is replaced or rebuilt.
• Oil leaks are detected.
• Engine repairs involve the oil supply circuit.
• Performing preventative maintenance on the turbo lubrication system.

As with most sealing components, Porsche recommends fitting new seals rather than reusing old ones.

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99970761440

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O-ring for turbocharger oil supply line. 

Sold individually; x4 required per vehicle.

Fits:
Porsche 95B-1 Macan S / GTS / Turbo 2014-18 - Excludes diesel and 2.0 base model

Porsche 997.2 Turbo 2010-13 - Excludes GT2 RS

Porsche 991 Turbo / GT2 RS 2014-20

Porsche 958.2 Cayenne S / GTS 3.6L V6 2015-18

Porsche 970.2 Panamera S / 4S 3.0L V6 2014-18

Diagram ref. 2.

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99970761341

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Water Hose, Intake. 
The Genuine Porsche Water Hose, Intake is an essential engine cooling system component designed to maintain efficient coolant circulation and support reliable engine temperature regulation.

Fits:

• 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 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 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  

Diagram Ref No 21

Manufactured to Porsche's original equipment specifications, this coolant intake hose provides a secure connection within the engine's cooling circuit, allowing coolant to flow between the relevant cooling system components.

The hose is designed to withstand the demanding operating conditions of a Porsche engine, including elevated coolant temperatures, changing system pressures, engine vibration and repeated heating and cooling cycles.

Over time, original coolant hoses can deteriorate due to ageing, heat exposure, chemical contact and constant pressure fluctuations. This deterioration may result in cracks, leaks, swelling or weakened connections, potentially compromising cooling system efficiency.

Replacing a worn or damaged hose with a Genuine Porsche component helps restore the integrity of the cooling circuit, maintain correct coolant circulation and reduce the risk of engine overheating.

Ideal for routine servicing, preventative maintenance and engine cooling system repairs, this genuine replacement hose offers factory-style fitment and dependable performance.

What This Product Does:
The water hose forms part of the engine's liquid cooling system and performs several important functions:

• Transfers Engine Coolant: Provides a passage for coolant to travel between connected components within the engine cooling circuit.
• Supports Engine Temperature Regulation: Helps maintain coolant circulation, allowing the cooling system to control engine operating temperatures.
• Maintains Cooling System Integrity: Provides a secure connection designed to retain coolant under normal operating pressure.
• Accommodates Engine Movement: Its flexible construction helps absorb engine vibration and small movements between connected components.
• Withstands Temperature Changes: Designed to accommodate the repeated heating and cooling cycles experienced during engine operation.
• Supports Reliable Cooling Performance: Helps ensure coolant reaches the relevant cooling system components without unnecessary leakage or restriction.
• Protects Engine Components: By maintaining coolant circulation, it helps reduce the risk of overheating and temperature-related damage.
• Maintains Original Porsche Specifications: Designed for correct installation within the specified factory cooling system arrangement.

Symptoms Of Wear Or Failure:
Coolant hoses are exposed to demanding conditions throughout their service life. Repeated heat cycles, pressure fluctuations and material ageing can gradually weaken the hose and its connections.

Common symptoms of a worn or failing coolant intake hose include:

• Coolant Leaks: Visible coolant dripping or seeping from the hose body, ends or connection points.
• Low Coolant Level: Repeated coolant top-ups may indicate leakage from the hose or another cooling system component.
• Visible Cracks or Splits: Surface cracking, especially around bends and connection points, may indicate ageing or material deterioration.
• Swollen or Bulging Hose: Sections of the hose may become enlarged or distorted due to internal deterioration or excessive pressure.
• Hardened or Brittle Rubber: Prolonged exposure to heat can cause the hose material to lose flexibility and become more susceptible to cracking.
• Soft or Spongy Sections: Internal material breakdown may cause the hose to feel unusually soft or weakened.
• Engine Overheating: Significant coolant loss or restricted circulation may lead to elevated engine operating temperatures.
• Coolant Warning Messages: Low coolant levels caused by leakage may trigger dashboard warnings.
• Sweet Coolant Smell: Escaping antifreeze may produce a noticeable sweet smell around the engine compartment.
• Dried Coolant Residue: White, pink or coloured deposits around the hose or its fittings may indicate previous coolant seepage.
• Loose or Deteriorated Connections: Worn hose ends or damaged clamps can compromise the seal between the hose and adjacent components.

Why Replacement Matters:
Replacing a worn or damaged coolant intake hose is important for maintaining the reliability, efficiency and safety of the engine cooling system.

Key Benefits of Replacement:

• Restores Coolant System Integrity: Replaces cracked, leaking or deteriorated hoses to help maintain a sealed cooling circuit.
• Helps Prevent Engine Overheating: Reduces the risk of coolant loss that could compromise temperature regulation.
• Maintains Reliable Coolant Circulation: Supports normal coolant movement through the engine cooling system.
• Reduces the Risk of Unexpected Breakdown: Replacing weakened hoses can help prevent sudden coolant loss during driving.
• Protects Expensive Engine Components: Helps reduce the risk of overheating-related damage to cylinder heads, gaskets and other internal engine components.
• Genuine Porsche Quality: Manufactured to the original equipment fitment requirements for the applicable cooling system.
• Correct Hose Shape and Fitment: Designed to match the original hose routing and connection points.
• Improves Long-Term Reliability: Replacing ageing cooling system components supports dependable engine operation.
• Ideal for Preventative Maintenance: Particularly beneficial when performing cooling system servicing or replacing adjacent components.
• Maintains Factory Specifications: Helps preserve the intended configuration and performance of the Porsche cooling system.

A failing coolant hose may initially cause only minor seepage or occasional coolant loss. However, continued deterioration can lead to significant leakage and an increased risk of engine overheating.

Replacing the hose promptly with a Genuine Porsche component is a practical way to help maintain the cooling system's performance and avoid potentially costly engine damage.

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