Expansion Tank Hoses

Breather Line.

The Breather Line is a genuine Porsche ventilation hose designed to support correct pressure regulation and airflow within the vehicle’s engine or cooling system ventilation circuit (depending on application). This line helps route trapped air or vapours through the correct system pathways, ensuring stable operation and preventing pressure build-up.

Fits:

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-14
• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-14
• Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-14
• Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2010-14

  
Diagram Ref No 6

What This Product Does:

• Allowing trapped air or vapours to vent safely
• Maintaining stable system pressure
• Supporting efficient coolant or crankcase circulation (application dependent)
• Helping prevent pressure-related leaks
• Ensuring the system operates correctly without airlocks or restriction

Symptoms Of Wear Or Failure:

• Coolant or oil vapour leaks (depending on system type)
• Cracked, split, or brittle hose material
• Poor system bleeding or air trapped in the circuit
• Coolant loss or pressure issues
• Engine bay smells (coolant or oil vapour)
• Warning lights or fault codes in some cases
• Overheating or unstable temperature readings (if coolant-related)

Why Replacement Matters:

• Maintain correct ventilation and pressure control
• Prevent leaks and coolant/oil loss
• Support stable engine operating temperatures
• Avoid overheating and expensive repairs
• Restore proper system efficiency and reliability

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95810631010

The product you are viewing cross references to these numbers

Breather Line.

The Breather Line is a OE MATCH ventilation hose designed to support correct pressure regulation and airflow within the vehicle’s engine or cooling system ventilation circuit (depending on application). This line helps route trapped air or vapours through the correct system pathways, ensuring stable operation and preventing pressure build-up.

Fits:

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-14
• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2010-14
• Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-14
• Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2010-14

  
Diagram Ref No 6

What This Product Does:

• Allowing trapped air or vapours to vent safely
• Maintaining stable system pressure
• Supporting efficient coolant or crankcase circulation (application dependent)
• Helping prevent pressure-related leaks
• Ensuring the system operates correctly without airlocks or restriction

Symptoms Of Wear Or Failure:

• Coolant or oil vapour leaks (depending on system type)
• Cracked, split, or brittle hose material
• Poor system bleeding or air trapped in the circuit
• Coolant loss or pressure issues
• Engine bay smells (coolant or oil vapour)
• Warning lights or fault codes in some cases
• Overheating or unstable temperature readings (if coolant-related)

Why Replacement Matters:

• Maintain correct ventilation and pressure control
• Prevent leaks and coolant/oil loss
• Support stable engine operating temperatures
• Avoid overheating and expensive repairs
• Restore proper system efficiency and reliability

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95810631010

The product you are viewing cross references to these numbers

Breather Line.

The Breather Line is a genuine Porsche ventilation hose designed to support correct pressure regulation and airflow within the vehicle’s engine or cooling system ventilation circuit (depending on application). This line helps route trapped air or vapours through the correct system pathways, ensuring stable operation and preventing pressure build-up.
Fits:

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2015-17
• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2015-17
• Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2015-17
• Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2015-17

  
Diagram Ref No 6
What This Product Does:

• Allowing trapped air or vapours to vent safely
• Maintaining stable system pressure
• Supporting efficient coolant or crankcase circulation (application dependent)
• Helping prevent pressure-related leaks
• Ensuring the system operates correctly without airlocks or restriction

Symptoms Of Wear Or Failure:

• Coolant or oil vapour leaks (depending on system type)
• Cracked, split, or brittle hose material
• Poor system bleeding or air trapped in the circuit
• Coolant loss or pressure issues
• Engine bay smells (coolant or oil vapour)
• Warning lights or fault codes in some cases
• Overheating or unstable temperature readings (if coolant-related)

Why Replacement Matters:

• Maintain correct ventilation and pressure control
• Prevent leaks and coolant/oil loss
• Support stable engine operating temperatures
• Avoid overheating and expensive repairs
• Restore proper system efficiency and reliability

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95810631011

The product you are viewing cross references to these numbers

Breather Line.

The Breather Line is a OE MATCH ventilation hose designed to support correct pressure regulation and airflow within the vehicle’s engine or cooling system ventilation circuit (depending on application). This line helps route trapped air or vapours through the correct system pathways, ensuring stable operation and preventing pressure build-up.
Fits:

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2015-17
• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2015-17
• Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2015-17
• Porsche 958 Cayenne S V8 4.2L Diesel (382Hp) 2015-17

  
Diagram Ref No 6
What This Product Does:

• Allowing trapped air or vapours to vent safely
• Maintaining stable system pressure
• Supporting efficient coolant or crankcase circulation (application dependent)
• Helping prevent pressure-related leaks
• Ensuring the system operates correctly without airlocks or restriction

Symptoms Of Wear Or Failure:

• Coolant or oil vapour leaks (depending on system type)
• Cracked, split, or brittle hose material
• Poor system bleeding or air trapped in the circuit
• Coolant loss or pressure issues
• Engine bay smells (coolant or oil vapour)
• Warning lights or fault codes in some cases
• Overheating or unstable temperature readings (if coolant-related)

Why Replacement Matters:

• Maintain correct ventilation and pressure control
• Prevent leaks and coolant/oil loss
• Support stable engine operating temperatures
• Avoid overheating and expensive repairs
• Restore proper system efficiency and reliability

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95810631011

The product you are viewing cross references to these numbers

Coolant Hose, Complete.

The Genuine Porsche Coolant Hose, Complete (95810631022) is an original equipment cooling system replacement component designed for selected Porsche Cayenne 958 models equipped with the 3.0-litre hybrid powertrain.

Fits:

• Porsche 958 Cayenne S V6 3.0L Hybrid (380Hp) 2010-17  

Diagram Ref No 7

Also referred to as a complete water hose or water radiator hose assembly, this component forms part of the vehicle's engine cooling system, carrying coolant between its designated connection points.

The Porsche Cayenne uses a carefully engineered liquid cooling system to regulate operating temperatures and protect the engine during a wide range of driving conditions.

During operation, coolant circulates through the engine and associated cooling system components, absorbing heat and transferring it towards the appropriate heat exchangers.

For the cooling system to perform correctly, coolant must remain contained within a sealed circuit and flow through the correct hoses and passages.

The Porsche complete coolant hose 95810631022 provides one of these connections within the Cayenne's original cooling system arrangement.

Its construction and connection layout are intended to match the relevant factory cooling system specification.

This is important because different Porsche Cayenne engines and production years use different hose configurations.

The coolant hose is continually exposed to high operating temperatures, pressure changes, engine vibration and coolant chemicals.

Over time, these conditions can cause the hose material or its connections to deteriorate.

Ageing hoses may become hard, brittle, swollen or weakened, while damaged connections can allow coolant to escape.

A coolant leak may initially appear as minor dampness around the hose, but continued deterioration can lead to greater coolant loss and potentially compromise engine cooling.

If the cooling system loses too much coolant, the engine may begin to run at an abnormally high temperature.

Severe overheating can damage engine seals, cylinder heads and other internal components.

Replacing a worn or leaking hose with Genuine Porsche part number 95810631022 helps restore the original coolant connection, maintain system integrity and support dependable engine temperature regulation.

This complete hose assembly is particularly suitable for coolant leak repairs, cooling system refurbishment and replacement of deteriorated original pipework.

As a Genuine Porsche part, it provides the specified original equipment replacement for compatible Cayenne cooling system configurations.

What This Product Does:
The coolant hose provides a dedicated passage for coolant circulation within the Porsche Cayenne engine cooling system.

Its main functions include:

• Transfers Engine Coolant: Carries coolant between the relevant cooling system components.
• Maintains Coolant Circulation: Supports uninterrupted flow through the designated cooling circuit.
• Provides a Sealed Connection: Helps prevent coolant escaping from the system.
• Supports Cooling System Pressure: Maintains the integrity of the pressurised coolant circuit.
• Helps Regulate Engine Temperature: Allows coolant to participate in the engine's heat-management process.
• Supports Heat Transfer: Helps coolant circulate through the system so heat can be absorbed and dissipated.
• Maintains Factory Coolant Routing: Preserves the original hose layout and connection positions.
• Accommodates Engine Movement: Provides a suitable connection within an environment exposed to vibration and thermal movement.
• Supports Engine Reliability: Helps prevent coolant loss that could interfere with cooling performance.
• Restores Original Equipment Fitment: Replaces worn or damaged factory coolant pipework.

Symptoms Of Wear Or Failure:
Coolant hoses are subject to repeated heating, cooling, expansion and contraction.

Age, mileage and environmental conditions can gradually affect the hose and its connections.

Typical symptoms:

• Wetness around the hose.
• Coolant dripping from a connection.
• Fluid collecting beneath the vehicle.
• Dried coolant residue around the hose ends.
• Coolant staining on nearby components.
• Leaks becoming more noticeable when the engine is hot.
• Low coolant warning on the dashboard.
• Expansion tank level falling below the recommended mark.
• Repeated need to top up coolant.
• Cooling system warnings after longer journeys.
• Sweet odour after driving.
• Coolant smell around the front of the vehicle.
• Smell becoming stronger when the engine is warm.
• Coolant residue on nearby engine components.

Why Replacement Matters:
The coolant hose plays an essential supporting role in the vehicle's engine cooling system.

Although it is a relatively simple component, a failed hose can cause significant coolant loss and potentially lead to serious engine damage.

Replacing a defective hose helps restore the system's ability to retain coolant and maintain the intended circulation path.

• Prevents Coolant Leaks: Restores a sealed connection where the original hose is leaking.
• Maintains Correct Coolant Circulation: Preserves the factory coolant routing.
• Supports Stable Engine Temperatures: Helps ensure the cooling system can operate as designed.
• Restores Pressure Integrity: Helps maintain the correct sealed cooling circuit.
• Reduces Overheating Risk: Addresses hose-related coolant loss before it becomes severe.
• Protects Engine Components: Helps prevent damage associated with inadequate cooling.
• Reduces Unplanned Breakdowns: Replaces a deteriorated component before complete failure.
• Supports Cooling System Reliability: Maintains a dependable connection between cooling components.
• Restores Factory Fitment: Uses the original Porsche hose configuration for compatible vehicles.
• Suitable for Preventative Maintenance: Allows replacement of an ageing or weakened hose during other cooling system repairs.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

95810631022

The product you are viewing cross references to these numbers