Engine Block Hoses

Coolant Breather Line, Rear.

The Coolant Breather Line, Rear is a genuine Porsche cooling system component designed to allow controlled ventilation within the rear section of the engine’s coolant circuit. This breather line helps release trapped air from the cooling system, ensuring smooth and consistent coolant circulation.
Fits:

• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2012-17
• Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
• Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
• Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18

  
Diagram Ref No 12
What This Product Does:

• Allowing trapped air to escape from the coolant circuit
• Preventing air pockets within the cooling system
• Supporting consistent coolant flow
• Maintaining correct system pressure balance
• Helping ensure stable engine operating temperature

Symptoms Of Wear Or Failure:

• Coolant leaks near the rear of the engine
• Visible cracks, brittleness, or splits in the line
• Coolant smell from the engine bay
• Low coolant warning light
• Air in the cooling system after bleeding
• Fluctuating engine temperature
• Overheating due to trapped air pockets

Why Replacement Matters:

• Maintain proper coolant circulation
• Prevent air pockets and overheating
• Ensure stable system pressure
• Avoid coolant loss and breakdowns
• Protect the engine from costly heat damage

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Related, superseded, cross reference or alternative numbers for comparison.

95810631401

The product you are viewing cross references to these numbers

Coolant Breather Line, Rear.

The Coolant Breather Line, Rear is a OE MATCH cooling system component designed to allow controlled ventilation within the rear section of the engine’s coolant circuit. This breather line helps release trapped air from the cooling system, ensuring smooth and consistent coolant circulation.
Fits:

• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2012-17
• Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
• Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
• Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18

  
Diagram Ref No 12
What This Product Does:

• Allowing trapped air to escape from the coolant circuit
• Preventing air pockets within the cooling system
• Supporting consistent coolant flow
• Maintaining correct system pressure balance
• Helping ensure stable engine operating temperature

Symptoms Of Wear Or Failure:

• Coolant leaks near the rear of the engine
• Visible cracks, brittleness, or splits in the line
• Coolant smell from the engine bay
• Low coolant warning light
• Air in the cooling system after bleeding
• Fluctuating engine temperature
• Overheating due to trapped air pockets

Why Replacement Matters:

• Maintain proper coolant circulation
• Prevent air pockets and overheating
• Ensure stable system pressure
• Avoid coolant loss and breakdowns
• Protect the engine from costly heat damage

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

95810631401

The product you are viewing cross references to these numbers

Coolant Hose.

The Coolant Hose is a genuine Porsche cooling system component designed to maintain consistent coolant flow throughout the engine’s cooling circuit. Engineered to operate under high temperatures and continuous system pressure, this hose plays a crucial role in regulating engine temperature and preventing overheating.
Fits:

• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2012-17
• Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
• Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
• Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18  

Diagram Ref No 37
What This Product Does:

• Transferring coolant between key cooling system components 
• Maintaining steady coolant circulation
• Supporting correct cooling system pressure
• Helping regulate engine operating temperature
• Preventing overheating during normal and high-load driving conditions

Symptoms Of Wear Or Failure:

• Coolant leaks or fluid visible beneath the vehicle
• Cracked, brittle, swollen, or soft hose material
• Coolant smell from the engine bay
• Low coolant warning light
• Engine overheating or fluctuating temperature readings
• Steam from the engine compartment
• Coolant residue around hose connections

Why Replacement Matters:

• Prevent sudden coolant loss and roadside breakdowns
• Maintain proper coolant circulation and temperature control
• Protect the engine from overheating damage
• Restore cooling system reliability
• Avoid costly repairs caused by heat-related engine failure

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

95810662501

The product you are viewing cross references to these numbers

Coolant Hose.

The Coolant Hose is a OE MATCH cooling system component designed to maintain consistent coolant flow throughout the engine’s cooling circuit. Engineered to operate under high temperatures and continuous system pressure, this hose plays a crucial role in regulating engine temperature and preventing overheating.
Fits:

• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2012-17
• Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
• Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
• Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18  

Diagram Ref No 37
What This Product Does:

• Transferring coolant between key cooling system components 
• Maintaining steady coolant circulation
• Supporting correct cooling system pressure
• Helping regulate engine operating temperature
• Preventing overheating during normal and high-load driving conditions

Symptoms Of Wear Or Failure:

• Coolant leaks or fluid visible beneath the vehicle
• Cracked, brittle, swollen, or soft hose material
• Coolant smell from the engine bay
• Low coolant warning light
• Engine overheating or fluctuating temperature readings
• Steam from the engine compartment
• Coolant residue around hose connections

Why Replacement Matters:

• Prevent sudden coolant loss and roadside breakdowns
• Maintain proper coolant circulation and temperature control
• Protect the engine from overheating damage
• Restore cooling system reliability
• Avoid costly repairs caused by heat-related engine failure

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

95810662501

The product you are viewing cross references to these numbers

Coolant Hose.

The Coolant Hose is a genuine Porsche cooling system component designed to ensure reliable coolant flow between key engine and radiator system components. Engineered to operate under high temperatures and constant cooling system pressure, this hose plays an essential role in maintaining stable engine operating temperatures.
Fits:

• Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18

Diagram Ref No 22
What This Product Does:

• Transferring coolant through the engine cooling circuit
• Maintaining consistent coolant circulation
• Supporting proper cooling system pressure
• Helping regulate engine operating temperature
• Preventing overheating under normal and demanding driving conditions

Symptoms Of Wear Or Failure:

• Coolant leaks or fluid visible beneath the vehicle
• Cracked, brittle, swollen, or soft hose material
• Coolant smell from the engine bay
• Low coolant warning light
• Engine overheating or fluctuating temperature readings
• Steam from the engine compartment
• Coolant residue around hose connections

Why Replacement Matters:

• Prevent sudden coolant loss and breakdowns
• Maintain proper coolant circulation and temperature control
• Protect the engine from overheating damage
• Restore cooling system reliability
• Avoid expensive repair costs caused by overheating

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

95B121056A

The product you are viewing cross references to these numbers

Coolant Hose.

The Coolant Hose is a OE MATCH cooling system component designed to ensure reliable coolant flow between key engine and radiator system components. Engineered to operate under high temperatures and constant cooling system pressure, this hose plays an essential role in maintaining stable engine operating temperatures.
Fits:

• Porsche 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18

Diagram Ref No 22
What This Product Does:

• Transferring coolant through the engine cooling circuit
• Maintaining consistent coolant circulation
• Supporting proper cooling system pressure
• Helping regulate engine operating temperature
• Preventing overheating under normal and demanding driving conditions

Symptoms Of Wear Or Failure:

• Coolant leaks or fluid visible beneath the vehicle
• Cracked, brittle, swollen, or soft hose material
• Coolant smell from the engine bay
• Low coolant warning light
• Engine overheating or fluctuating temperature readings
• Steam from the engine compartment
• Coolant residue around hose connections

Why Replacement Matters:

• Prevent sudden coolant loss and breakdowns
• Maintain proper coolant circulation and temperature control
• Protect the engine from overheating damage
• Restore cooling system reliability
• Avoid expensive repair costs caused by overheating

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

95B121056A

The product you are viewing cross references to these numbers

Coolant Hose.

The Coolant Hose is a genuine Porsche cooling system component designed to transfer coolant between critical engine and radiator circuit components. Built to withstand high temperatures, pressure fluctuations, and continuous heat cycles, this hose ensures consistent coolant flow and stable engine temperature regulation.

Fits:

• Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
• Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
• Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18  

Diagram Ref No 12

What This Product Does:

• Transferring coolant through the engine cooling circuit
• Maintaining steady coolant circulation
• Supporting correct cooling system pressure
• Helping regulate engine operating temperature
• Preventing overheating during everyday and high-load driving

Symptoms Of Wear Or Failure:

• Coolant leaks near hose connections
• Cracked, brittle, swollen, or softened hose material
• Coolant smell from the engine bay
• Low coolant warning light
• Engine overheating or fluctuating temperature readings
• Steam from the engine compartment
• Coolant residue around hose fittings

Why Replacement Matters:

• Prevent sudden coolant leaks and breakdowns
• Maintain proper coolant circulation and temperature control
• Protect the engine from overheating damage
• Restore reliable cooling system performance
• Avoid costly repairs caused by cooling system failure

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

95B121130A

The product you are viewing cross references to these numbers

Coolant Hose.

The Coolant Hose is a OE MATCH cooling system component designed to transfer coolant between critical engine and radiator circuit components. Built to withstand high temperatures, pressure fluctuations, and continuous heat cycles, this hose ensures consistent coolant flow and stable engine temperature regulation.
Fits:

• Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
• Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
• Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18  

Diagram Ref No 12
What This Product Does:

• Transferring coolant through the engine cooling circuit
• Maintaining steady coolant circulation
• Supporting correct cooling system pressure
• Helping regulate engine operating temperature
• Preventing overheating during everyday and high-load driving

Symptoms Of Wear Or Failure:

• Coolant leaks near hose connections
• Cracked, brittle, swollen, or softened hose material
• Coolant smell from the engine bay
• Low coolant warning light
• Engine overheating or fluctuating temperature readings
• Steam from the engine compartment
• Coolant residue around hose fittings

Why Replacement Matters:

• Prevent sudden coolant leaks and breakdowns
• Maintain proper coolant circulation and temperature control
• Protect the engine from overheating damage
• Restore reliable cooling system performance
• Avoid costly repairs caused by cooling system failure

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

95B121130A

The product you are viewing cross references to these numbers

Coolant Hose.

The Coolant Hose is a genuine Porsche cooling system component designed to route coolant efficiently between key engine and radiator circuit components. Built to withstand high operating temperatures and system pressure, this rigid coolant pipe ensures stable coolant flow and reliable heat management.

Fits:

• Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
• Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
• Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18 

Diagram Ref No 14
What This Product Does:

• Directing coolant flow through the cooling system
• Maintaining consistent coolant circulation
• Supporting proper cooling system pressure
• Ensuring secure connections between cooling components
• Helping prevent overheating during normal and demanding driving conditions
  

Symptoms Of Wear Or Failure:

• Coolant leaks near pipe joints or fittings
• Visible corrosion, cracking, or surface damage
• Coolant smell from the engine bay
• Low coolant warning light
• Engine overheating or fluctuating temperature readings
• Coolant residue around pipe connections

Why Replacement Matters:

• Prevent sudden coolant leaks and breakdowns
• Maintain proper cooling system pressure
• Protect engine components from heat-related damage
• Restore reliable coolant circulation
• Avoid costly repairs caused by cooling system failure

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

95B121130B

The product you are viewing cross references to these numbers

Coolant Hose.

The Coolant Hose is a OE MATCH cooling system component designed to route coolant efficiently between key engine and radiator circuit components. Built to withstand high operating temperatures and system pressure, this rigid coolant pipe ensures stable coolant flow and reliable heat management.

Fits:

• Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
• Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
• Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18 

Diagram Ref No 14
What This Product Does:

• Directing coolant flow through the cooling system
• Maintaining consistent coolant circulation
• Supporting proper cooling system pressure
• Ensuring secure connections between cooling components
• Helping prevent overheating during normal and demanding driving conditions
  

Symptoms Of Wear Or Failure:

• Coolant leaks near pipe joints or fittings
• Visible corrosion, cracking, or surface damage
• Coolant smell from the engine bay
• Low coolant warning light
• Engine overheating or fluctuating temperature readings
• Coolant residue around pipe connections

Why Replacement Matters:

• Prevent sudden coolant leaks and breakdowns
• Maintain proper cooling system pressure
• Protect engine components from heat-related damage
• Restore reliable coolant circulation
• Avoid costly repairs caused by cooling system failure

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

95B121130B

The product you are viewing cross references to these numbers

Coolant Hose.

The Coolant Hose is a genuine Porsche cooling system component designed to route coolant efficiently between key engine and radiator circuit components. Built to withstand high operating temperatures and system pressure, this rigid coolant pipe ensures stable coolant flow and reliable heat management.

Fits:

• Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
• Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
• Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18 

Diagram Ref No 16
What This Product Does:

• Directing coolant flow through the cooling system
• Maintaining consistent coolant circulation
• Supporting proper cooling system pressure
• Ensuring secure connections between cooling components
• Helping prevent overheating during normal and demanding driving conditions
  

Symptoms Of Wear Or Failure:

• Coolant leaks near pipe joints or fittings
• Visible corrosion, cracking, or surface damage
• Coolant smell from the engine bay
• Low coolant warning light
• Engine overheating or fluctuating temperature readings
• Coolant residue around pipe connections

Why Replacement Matters:

• Prevent sudden coolant leaks and breakdowns
• Maintain proper cooling system pressure
• Protect engine components from heat-related damage
• Restore reliable coolant circulation
• Avoid costly repairs caused by cooling system failure

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

95B121130C

The product you are viewing cross references to these numbers

Coolant Hose.

The Coolant Hose is a OE MATCH cooling system component designed to route coolant efficiently between key engine and radiator circuit components. Built to withstand high operating temperatures and system pressure, this rigid coolant pipe ensures stable coolant flow and reliable heat management.

Fits:

• Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
• Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
• Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18 

Diagram Ref No 16
What This Product Does:

• Directing coolant flow through the cooling system
• Maintaining consistent coolant circulation
• Supporting proper cooling system pressure
• Ensuring secure connections between cooling components
• Helping prevent overheating during normal and demanding driving conditions
  

Symptoms Of Wear Or Failure:

• Coolant leaks near pipe joints or fittings
• Visible corrosion, cracking, or surface damage
• Coolant smell from the engine bay
• Low coolant warning light
• Engine overheating or fluctuating temperature readings
• Coolant residue around pipe connections

Why Replacement Matters:

• Prevent sudden coolant leaks and breakdowns
• Maintain proper cooling system pressure
• Protect engine components from heat-related damage
• Restore reliable coolant circulation
• Avoid costly repairs caused by cooling system failure

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

95B121130C

The product you are viewing cross references to these numbers

Coolant Hose.

The Genuine Porsche Coolant Hose is an original equipment replacement cooling system component designed for Porsche Cayenne 958 models equipped with the 3.0L diesel engine. Manufactured to Porsche's original specifications, this coolant hose provides a secure connection within the engine cooling circuit, helping maintain consistent coolant circulation and effective engine temperature regulation.

Fits:

• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2012-17
• Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
• Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
• Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18  

Diagram Ref No 28

Engine coolant hoses play an essential role in transferring coolant between cooling system components, allowing excess engine heat to be managed efficiently during normal driving and under demanding operating conditions.

Designed to withstand the high temperatures, pressure fluctuations and continuous thermal cycling experienced within the engine compartment, this genuine Porsche replacement provides the correct fit and compatibility for the specified application.

Ideal for replacing cracked, leaking, swollen or deteriorated original hoses, this component helps maintain cooling system reliability, protect the engine from overheating and restore dependable operation.

What This Product Does:
The coolant hose forms part of the engine's liquid cooling system, carrying coolant between designated cooling circuit connections. It helps maintain a sealed flow path, allowing the cooling system to regulate engine temperature efficiently.

Its key functions include:

• Coolant Circulation: Transfers engine coolant between cooling system components to support continuous coolant flow.
• Engine Temperature Regulation: Supports effective heat management by allowing coolant to circulate through the cooling circuit.
• Cooling System Pressure: Helps maintain a sealed and pressurised cooling system for efficient operation.
• Overheating Prevention: Supports the cooling system's ability to prevent excessive engine temperatures during normal operation.
• Leak Prevention: Provides a secure connection between cooling system components, reducing the risk of coolant loss.
• Thermal Resistance: Designed to withstand repeated exposure to high engine temperatures and cooling system pressure changes.
• Engine Protection: Helps maintain reliable cooling performance, protecting internal engine components against excessive heat.
• Original Equipment Fitment: Maintains the correct coolant hose routing and connection arrangement specified by Porsche.

Symptoms Of Wear Or Failure:
Over time, constant exposure to engine heat, coolant pressure, vibration and temperature fluctuations can cause coolant hoses to weaken or deteriorate.

Common signs include:

• Visible Coolant Leaks: Coolant dripping or collecting beneath the vehicle may indicate a split, damaged or leaking hose.
• Cracked or Split Hose Material: Age-related deterioration can cause visible cracks, particularly around bends and connection points.
• Swollen or Bulging Hose: Internal deterioration or excessive pressure may cause the hose material to expand or deform.
• Hardened or Brittle Rubber: Repeated heat exposure can reduce hose flexibility, increasing the risk of cracking and failure.
• Soft or Spongy Sections: Weakening of the internal hose structure may indicate deterioration and an increased risk of rupture.
• Low Coolant Warning: A leaking hose can cause coolant levels to drop, triggering a dashboard warning.
• Frequent Coolant Top-Ups: Repeated coolant loss without an obvious explanation may indicate a leak within the cooling system.
• Engine Overheating: Significant coolant loss can reduce the cooling system's ability to control engine temperature.
• Coolant Smell from the Engine Bay: A distinctive sweet smell may indicate coolant escaping onto hot engine components.
• Visible Coolant Residue: Dried coolant deposits or staining around hose connections can indicate an ongoing or previous leak.
• Steam from the Engine Compartment: A severe coolant leak may allow coolant to contact hot components, producing visible steam.
• Fluctuating Engine Temperature: Coolant loss or air entering the cooling circuit may contribute to unstable operating temperatures.

Why Replacement Matters:

• Replacing a worn or damaged coolant hose is essential for maintaining the reliability, performance and long-term protection of your Porsche Cayenne's engine cooling system.
• The engine cooling system relies on a continuous supply of coolant circulating through a sealed network of hoses and components. If a coolant hose becomes cracked, weakened or damaged, it may allow coolant to escape, reducing the system's ability to maintain the correct operating temperature.
• Even a small coolant leak can develop into a more serious problem over time. As coolant levels decrease, the risk of overheating increases, potentially causing damage to critical engine components, including cylinder heads, gaskets and associated cooling system parts.
• A sudden hose failure can also result in rapid coolant loss, leaving the vehicle vulnerable to overheating and an unexpected roadside breakdown.
• Installing a genuine Porsche replacement coolant hose helps restore the integrity of the cooling circuit, providing the correct fit, connection arrangement and dependable operation required for the specified vehicle application.
• Replacing deteriorated hoses during routine servicing or cooling system repairs can also help prevent further damage to surrounding components and reduce the likelihood of expensive engine repairs.
• The Genuine Porsche Coolant Hose 95810651300 provides an original equipment replacement solution, helping maintain efficient coolant circulation, stable engine temperatures and reliable long-term cooling system performance.

Related reference numbers
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95810651300

The product you are viewing cross references to these numbers

Coolant Hose.

The Genuine Porsche Coolant Hose (95810667300) is an original equipment cooling system component designed for selected Porsche Cayenne 958 models equipped with the 3.0-litre V6 diesel engine.

Fits:

• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2012-17
• Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
• Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
• Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18  

Diagram Ref No 38

Also described as a water hose or engine coolant hose, this component is associated with the engine oil cooler cooling circuit.

The Porsche Cayenne 3.0L V6 diesel engine uses a liquid cooling system to control engine temperature and assist with thermal management of important components, including the engine oil cooling arrangement.

During normal operation, both the engine and its lubricating oil absorb considerable heat.

Coolant circulates through designated passages and heat exchangers to transfer that heat away from the engine and help maintain suitable operating conditions.

The Porsche coolant hose 95810667300 provides a connection within this cooling system arrangement, allowing coolant to travel through the intended circuit.

Although relatively small, the hose is an important part of the sealed cooling system.

Its purpose is to maintain a reliable connection between the associated components while accommodating normal temperature changes, pressure variations and engine vibration.

Modern Porsche diesel engines operate under demanding thermal conditions, particularly during motorway driving, towing, extended journeys and high engine loads.

The cooling system must therefore remain properly sealed and filled to maintain consistent operation.

Over time, coolant hoses can deteriorate through repeated heating and cooling cycles, exposure to engine coolant and general ageing.

Rubber hose material may become hardened, brittle, swollen or cracked.

The hose may also deteriorate around its connections, allowing coolant to escape.

A leaking coolant hose can cause a gradual reduction in coolant level, which may eventually interfere with normal cooling system operation.

If coolant loss becomes significant, the engine may be exposed to overheating and associated mechanical damage.

Replacing a worn or leaking component with Genuine Porsche part number 95810667300 helps restore the original coolant routing and sealed connection.

This hose is suitable for repairs involving coolant leaks, maintenance of the engine oil cooler cooling circuit and replacement of deteriorated coolant pipework.

As a Genuine Porsche component, it is intended to provide the original equipment hose configuration for compatible Cayenne diesel engines.

What This Product Does:
The coolant hose carries liquid coolant between designated components within the engine cooling circuit.

Its primary functions include:

• Transfers Engine Coolant: Provides a passage for coolant to flow through the specified cooling system connection.
• Supports Engine Oil Cooling: Forms part of the coolant arrangement associated with the engine oil cooler.
• Maintains Coolant Circulation: Helps preserve the intended cooling system flow path.
• Provides a Sealed Connection: Prevents coolant from escaping when the hose and associated fittings are in good condition.
• Supports System Pressure Integrity: Helps maintain the closed, pressurised cooling circuit.
• Accommodates Engine Vibration: Provides a connection capable of tolerating normal movement and vibration.
• Supports Temperature Management: Allows coolant to circulate through the cooling components that manage engine and oil temperatures.
• Maintains Factory Routing: Preserves the original coolant connection layout.
• Helps Prevent Coolant Loss: Replaces leaking or deteriorated pipework.
• Supports Engine Reliability: Helps maintain dependable cooling system operation.

Symptoms Of Wear Or Failure:
Coolant hoses operate under conditions involving heat, pressure, vibration and exposure to coolant chemicals.

Although they do not generally have a fixed replacement interval, deterioration can develop with age and mileage.

Typical symptoms:

• Wetness around the coolant hose.
• Coolant dripping from a hose connection.
• Fluid collecting beneath the engine.
• Dried coolant residue around fittings.
• Leaks becoming more noticeable after driving.
• Coolant staining on surrounding components.
• Low coolant warning message.
• Coolant expansion tank level dropping.
• Frequent need to top up the cooling system.
• Coolant warning appearing after longer journeys.
• Coolant smell around the engine compartment.
• Odour becoming stronger after a journey.
• Smell from coolant contacting warm engine components.
• Visible coolant residue around the affected hose.

Why Replacement Matters:
The coolant hose helps maintain the integrity of the engine's cooling system.

A damaged hose may allow coolant to escape, reducing the system's ability to manage heat effectively.

Replacing a defective hose helps restore the original coolant connection and reduce the risk of overheating.

• Helps Prevent Coolant Leaks: Replaces cracked, split or damaged pipework.
• Restores Coolant Circuit Integrity: Maintains a sealed connection within the cooling system.
• Supports Engine Oil Cooling: Preserves the coolant connection associated with the engine oil cooler circuit.
• Maintains Reliable Coolant Flow: Keeps the original routing unobstructed and correctly connected.
• Supports Stable Engine Temperatures: Allows the cooling system to operate as intended.
• Reduces Overheating Risk: Addresses coolant loss before it compromises cooling performance.
• Protects Engine Components: Helps avoid damage associated with inadequate cooling.
• Reduces Breakdown Risk: Replaces a deteriorated hose before a more serious failure.
• Maintains Factory Fitment: Restores the original hose arrangement.
• Genuine Porsche Replacement: Provides the manufacturer's specified replacement for compatible applications.

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

95810667300

The product you are viewing cross references to these numbers

Coolant Hose. 

The Genuine Porsche Coolant Hose 95810645302 is an original equipment replacement cooling system component designed for selected Porsche Cayenne, Macan and Panamera models equipped with the 3.0L diesel engine. Manufactured to Porsche's original specifications, this coolant hose provides a secure, reliable connection within the engine cooling circuit, helping maintain efficient coolant circulation and consistent engine temperature regulation.

Fits:

• Porsche 958 Cayenne V6 3.0L Diesel (245Hp) 2012-17
• Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
• Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
• Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 2014-18  

Diagram Ref No 26

The coolant hose plays an important role in transferring coolant between designated cooling system components, supporting the engine's ability to maintain its correct operating temperature during everyday driving and demanding conditions.

Engine cooling hoses are continuously exposed to high temperatures, pressure changes, vibration and thermal cycling, which can cause the original material to deteriorate over time.

Designed for accurate fitment and dependable operation, this genuine Porsche replacement is ideal for repairing coolant leaks, replacing aged or damaged hoses and restoring the integrity of the engine cooling system.

What This Product Does:
The coolant hose forms part of the engine's liquid cooling system, providing a sealed passage for coolant to circulate between connected components. It helps maintain consistent coolant flow and system pressure, supporting effective engine temperature management.

Its key functions include:

Coolant Circulation: Allows coolant to flow between designated cooling system components, supporting efficient engine cooling.

Engine Temperature Regulation: Helps the cooling system maintain a stable operating temperature by enabling coolant circulation.

Cooling System Sealing: Provides a secure connection that helps prevent coolant leaks and maintain the correct system pressure.

Overheating Prevention: Supports effective engine cooling by helping maintain an uninterrupted coolant flow.

Thermal Resistance: Designed to withstand repeated exposure to engine heat and temperature fluctuations.

Pressure Resistance: Accommodates normal pressure changes within the vehicle's cooling system.

Engine Protection: Helps prevent excessive engine temperatures that could damage sensitive engine components.

Original Equipment Fitment: Maintains the correct hose routing and connection arrangement specified for the applicable Porsche cooling system.

Symptoms Of Wear Or Failure:
Over time, exposure to high temperatures, coolant pressure, vibration and general ageing can cause the coolant hose to weaken, crack or develop leaks.

Common signs include:

• Visible Coolant Leaks: Coolant dripping beneath the engine compartment or collecting around hose connections may indicate damage or a failed seal.
• Low Coolant Warning: A leaking hose can cause coolant levels to fall, triggering the dashboard coolant warning.
• Frequent Coolant Top-Ups: Repeatedly needing to refill the coolant reservoir may indicate a leak within the cooling system.
• Cracked or Split Hose Material: Visible cracks, splits or surface deterioration can indicate that the hose is approaching the end of its service life.
• Swollen or Bulging Hose: Internal deterioration or excessive cooling system pressure may cause the hose to expand or deform.
• Hardened or Brittle Material: Prolonged heat exposure can reduce the flexibility of the hose, increasing the risk of cracking.
• Soft or Spongy Sections: Localised weakening of the hose structure may indicate internal material deterioration.
• Coolant Smell from the Engine Bay: A sweet smell may indicate coolant escaping onto surrounding engine components.
• Dried Coolant Residue: White, pink or coloured deposits around hose connections may indicate previous or ongoing coolant leakage.
• Engine Overheating: Significant coolant loss may prevent the cooling system from regulating engine temperature effectively.
• Fluctuating Temperature Readings: Coolant loss or air entering the cooling circuit may contribute to irregular engine temperature readings.
• Steam from the Engine Compartment: A severe coolant leak may allow coolant to contact hot engine surfaces, producing visible steam.

Why Replacement Matters:

• Replacing a worn, cracked or leaking coolant hose is essential for maintaining the reliability, efficiency and long-term protection of your Porsche's engine cooling system.
• The engine cooling system relies on a continuous circulation of coolant through a sealed network of hoses, pipes and associated components. When a coolant hose becomes damaged or weakened, coolant can escape, reducing the system's ability to maintain the engine's correct operating temperature.
• Even a small coolant leak can develop into a more serious issue if left unresolved. As coolant levels decrease, the risk of overheating increases, potentially resulting in damage to the cylinder head, head gasket and other critical engine components.
• A severely deteriorated hose may fail suddenly under pressure, causing rapid coolant loss and potentially leaving the vehicle stranded.
• Installing a genuine Porsche replacement coolant hose helps restore a secure and dependable cooling system connection. Its original equipment design helps ensure correct fitment, proper routing and compatibility with the specified engine configuration.
• Replacing damaged hoses during routine maintenance or cooling system repairs can also help prevent further deterioration of adjoining components and reduce the likelihood of expensive repairs.
• For Porsche Cayenne, Macan and Panamera diesel owners, maintaining the cooling system is particularly important for protecting the engine during extended journeys, heavy loads and demanding driving conditions.
• The Genuine Porsche Coolant Hose 95810645302 provides a reliable original equipment replacement solution, helping maintain coolant circulation, prevent leaks and protect the engine against overheating.

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

95810645302

The product you are viewing cross references to these numbers

Coolant Intermediate Flange Gasket.

Fits:
Porsche 92A Cayenne (958) 3.0L V6 Diesel 2011>>2018
Cars With Option Codes:
D1V / D43 / D50 / D51 / DV7

Porsche 95B Macan MKII 3.0L V6 2014>>2018
Cars With Engine Codes:
CDUD / CTBA / CTBB / CTBC

Porsche 970 Panamera MKI 3.0L V6 2010>>2016
Cars With Engine Codes:
CRCC / CRCB / CWJA

Part Goes On To Diagram Ref No 35

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

95810674905

The product you are viewing cross references to these numbers