Engine Block Hoses

Alternator cooling hose connect.
90º coolant fitting at the alternator.

Fits:
Porsche 955 Cayenne S / Turbo 4.5L 2003-06
M 816 09867 >>
M 8260 4064 >>

Porsche 957 Cayenne 4.8L 2007-10
Porsche 958 Cayenne 4.8L 2010-18
Porsche 970 Panamera 4.8L 2010-16

Diagram ref no 10

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94810646200

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Alternator cooling hose connect.
90º coolant fitting at the alternator.
Includes O-ring; Premium Metal Construction

Fits:
Porsche 955 Cayenne S / Turbo 4.5L 2003-06
M 816 09867 >>
M 8260 4064 >>

Porsche 957 Cayenne 4.8L 2007-10
Porsche 958 Cayenne 4.8L 2010-18
Porsche 970 Panamera 4.8L 2010-16

Diagram ref no 10

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94810646200PRM

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Alternator cooling hose connect.
90º coolant fitting at the alternator.

Fits:
Porsche 955 Cayenne S / Turbo 4.5L 2003-06
M 816 09867 >>
M 8260 4064 >>

Porsche 957 Cayenne 4.8L 2007-10
Porsche 958 Cayenne 4.8L 2010-18
Porsche 970 Panamera 4.8L 2010-16

Diagram ref no 10

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94810646200

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Breather line
The Porsche Genuine OE Breather Line (Part No. 97010631001) is an original factory engine coolant vent / breather hose designed for the Porsche 970 Panamera models up to 2013.

Fits:
Porsche 970.1 Panamera 3.6L >>2013
Porsche 970.1 Panamera 4.8L S / GTS / Turbo >>2013

Diagram ref no 11

The breather line allows trapped air and coolant vapour to circulate correctly within the cooling system, helping maintain stable coolant pressure and efficient coolant flow. Proper venting is essential for preventing:
• Air pockets within the cooling system
• Pressure build-up
• Coolant overflow or circulation issues
This helps ensure efficient engine temperature control and reliable cooling system operation.

Functions & Technical Role
•  Cooling system venting: Helps remove trapped air from the coolant system
•  Pressure regulation: Assists in maintaining stable coolant pressure
•  Coolant circulation support: Helps optimise cooling system efficiency
•  Leak prevention: OE hose construction designed for secure sealing and durability
•  OEM precision: Manufactured to Porsche factory specifications for exact fitment and reliability

Fitment / Position on car
•  Fitting position: Engine cooling system
•  Location: Engine coolant line / engine block vent circuit
•  System: Cooling and venting system

The breather line helps maintain efficient coolant circulation and prevents trapped air within the cooling system. A damaged or leaking hose can affect coolant pressure and overall engine cooling performance.

When to replace
•   Coolant leaks around the hose connections
•   Cracked, brittle, or swollen hose material
•   Cooling system pressure issues
•   During coolant system overhaul or engine service
•   Signs of coolant vapour or air ingress in the system

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97010631001

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Breather line
This OE match breather line is a direct replacement for the original Porsche coolant vent hose fitted to Porsche 970.1 Panamera models equipped with 3.6L and 4.8L petrol engines. It forms part of the engine cooling system and helps regulate coolant circulation, pressure equalisation, and venting within the cooling circuit.

Fits:
Porsche 970.1 Panamera 3.6L >>2013
Porsche 970.1 Panamera 4.8L S / GTS / Turbo >>2013

Diagram ref no 11

The breather line vents and circulates coolant within the engine cooling system, helping maintain correct coolant pressure, eliminate trapped air, and support stable engine operating temperatures.

Function
•  Connects coolant vent and expansion tank pipework
•  Helps eliminate trapped air from the cooling system
•  Supports coolant circulation and pressure regulation
•  Maintains stable engine operating temperatures
•  Reduces risk of coolant leaks and overheating

Cooling system vent hoses are constantly exposed to heat, coolant pressure, and vibration. Over time, the hose material can harden or crack, increasing the risk of coolant leaks and cooling system pressure loss. Replacing worn breather lines helps maintain reliable cooling system operation and reduces the risk of overheating or engine damage.

When to replace
•  Visible coolant leaks or staining
•  Cracked or brittle hose material
•  Cooling system pressure loss
•  Overheating or fluctuating coolant temperatures
•  During preventative cooling system maintenance
•  During radiator or expansion tank replacement

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97010631001

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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

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95810631401

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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
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95810631401

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Coolant feed hose by OE Match, this hose serves the coolant supply circuit.

Fits

• Porsche 970 Panamera 4.8L 2010-16
  
  

Check fitment for your specific vehicle (model, year, engine) before ordering.

Diagram ref 33

What This Product Does

The hose provides a coolant feed connection within the engine cooling circuit. An intact hose and sound connections help contain coolant as it circulates through the system.

Functions

• Carries coolant through the supply circuit.
• Provides a sealed connection between adjoining cooling components.
• Supports coolant circulation needed for temperature management.
  
  

Technical Details

• Brand: OE Match.
• Part reference: 97010640202.
• Component identification: coolant supply hose.
• Application: specified Porsche 970 Panamera 4.8L variants.
• Diagram engine/model identifiers for this part: 4820, 4840, 4870, CXPA, CXRA, CXR, CWBA, CWB, CWCA, CWC.
  
  

Symptoms of Fault

• Moisture or dried deposits at hose connections.
• A sweet odour following a journey.
• Coolant level falling between checks.
• Splits or deterioration beside retaining clamps.
• Swelling or unusually soft sections.
• Leakage appearing only when the system is hot.
• Temperature increases or coolant-level warnings.
• Traces of coolant on the engine or undertray.
  
  

Why Replacement Matters

Age, repeated heating and contamination can weaken coolant hoses. Replacing a confirmed leaking or deteriorated feed hose addresses coolant loss before it develops into a larger cooling-system problem. Inspect adjacent connections, seals and clamps during the repair rather than assuming the hose alone explains every leak.

FAQs

Can a hose leak without leaving a puddle?
Yes. Escaping coolant can evaporate against hot surfaces or remain trapped above an undertray.

How can the leak source be confirmed?
A cooling-system pressure test and inspection of the hose ends can help distinguish hose leakage from nearby pumps, housings or pipe seals.

Should the clamps also be checked?
Inspect their condition and tension, together with the adjoining fittings. Renew damaged or unsuitable retaining components as required.

Why might leakage occur only after driving?
Heat and operating pressure can reveal deterioration that is not apparent during a cold inspection.

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

97010640202

The product you are viewing cross references to these numbers

Coolant hose feed.

Fits:
Porsche 970 Panamera 4.8L 2010-16

Click 'Zoom in' for large parts diagram.
Diagram ref no 33

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97010640202

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Coolant Hose, Feed.
The Coolant Hose, Feed is a genuine Porsche OEM coolant hose designed to carry pressurised engine coolant through the feed circuit of the cooling system. This hose ensures correct coolant flow between key cooling components, supporting stable engine operating temperatures and reliable cooling system performance. Manufactured to Porsche specifications, it provides precise fitment and durability for Porsche 955 / 957 / 958 / 970 models.

Fits:

• Porsche 955 Cayenne S 4.5L V8 2003-06
• Porsche 955 Cayenne Turbo 4.5L 2003-06
• Porsche 955 Cayenne Turbo S 4.5L 2006>>
• Porsche 957 Cayenne S/GTS 4.8L 2007-10
• Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
• Porsche 958 Cayenne S V8 4.8L Petrol 400HP 2010-17
• Porsche 958 Cayenne GTS V8 4.8L Petrol 400HP 2010-17
• Porsche 958 Cayenne Turbo V8 4.8L Petrol 500HP 2010-17
• Porsche 958 Cayenne Turbo S V8 4.8L Petrol 550HP 2010-17
• Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
• Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
• Porsche 970.1 Panamera S V8 4.8L 2009-13
• Porsche 970.1 Panamera 4S V8 4.8L 2009-13
• Porsche 970.1 Panamera GTS V8 4.8L 2011-13
• Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
• Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
• Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
• Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
• Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
• Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
• Porsche 970.2 Panamera Turbo V8 Executive 2014-16
• Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16  

Diagram Ref No 7 (Diagram Ref No 8 and 9 Included)

What This Product Does:

• Feeds engine coolant between cooling system components such as the engine, radiator, and expansion/overflow tank.
• Helps maintain proper coolant circulation, which is essential for controlling engine temperature.
  
• Supports overheating prevention by ensuring coolant flows efficiently through the system.
  
• Provides a flexible connection that absorbs engine movement and thermal expansion without stressing rigid pipes.
  
  

Symptoms Of Wear Or Failure:

• Coolant may seep or drip from the hose itself or around the hose clamp connection points.
• A worn feed hose can cause gradual coolant loss, leading to repeated topping up.
• If the hose leaks or restricts coolant flow, the engine may run hotter than normal.
• A coolant leak often produces a sweet smell in the engine bay or around the vehicle.
• Visible signs of deterioration may include cracking, bulging, hardened rubber, wet staining
  
• If coolant circulation is affected, cabin heat may become weak or inconsistent.
• Modern Porsche models may display coolant level or overheating warnings when leaks develop.

Why Replacement Matters:

• Prevents coolant leaks that can cause low coolant levels and loss of pressure.
  
• Helps avoid engine overheating, which can lead to severe and expensive engine damage.
  
• Restores proper coolant circulation, ensuring the cooling system performs efficiently under all conditions.
  
• Maintains reliable heater performance, since cabin heating depends on correct coolant flow.
  
• Protects other cooling components, as leaks can introduce air into the system and increase strain on hoses, seals, and the water pump.

Related reference numbers
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94810635506

The product you are viewing cross references to these numbers

Coolant Hose, Feed.
The Coolant Hose, Feed is a OE MATCH coolant hose designed to carry pressurised engine coolant through the feed circuit of the cooling system. This hose ensures correct coolant flow between key cooling components, supporting stable engine operating temperatures and reliable cooling system performance. It provides precise fitment and durability for Porsche 955 / 957 / 958 / 970 models.

Fits:

• Porsche 955 Cayenne S 4.5L V8 2003-06
• Porsche 955 Cayenne Turbo 4.5L 2003-06
• Porsche 955 Cayenne Turbo S 4.5L 2006>>
• Porsche 957 Cayenne S/GTS 4.8L 2007-10
• Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
• Porsche 958 Cayenne S V8 4.8L Petrol 400HP 2010-17
• Porsche 958 Cayenne GTS V8 4.8L Petrol 400HP 2010-17
• Porsche 958 Cayenne Turbo V8 4.8L Petrol 500HP 2010-17
• Porsche 958 Cayenne Turbo S V8 4.8L Petrol 550HP 2010-17
• Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
• Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
• Porsche 970.1 Panamera S V8 4.8L 2009-13
• Porsche 970.1 Panamera 4S V8 4.8L 2009-13
• Porsche 970.1 Panamera GTS V8 4.8L 2011-13
• Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
• Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
• Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
• Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
• Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
• Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
• Porsche 970.2 Panamera Turbo V8 Executive 2014-16
• Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16  

Diagram Ref No 7 (Diagram Ref No 8 and 9 Sold Separately)

What This Product Does:

• Feeds engine coolant between cooling system components such as the engine, radiator, and expansion/overflow tank.
• Helps maintain proper coolant circulation, which is essential for controlling engine temperature.
  
• Supports overheating prevention by ensuring coolant flows efficiently through the system.
  
• Provides a flexible connection that absorbs engine movement and thermal expansion without stressing rigid pipes.
  
  

Symptoms Of Wear Or Failure:

• Coolant may seep or drip from the hose itself or around the hose clamp connection points.
• A worn feed hose can cause gradual coolant loss, leading to repeated topping up.
• If the hose leaks or restricts coolant flow, the engine may run hotter than normal.
• A coolant leak often produces a sweet smell in the engine bay or around the vehicle.
• Visible signs of deterioration may include cracking, bulging, hardened rubber, wet staining
  
• If coolant circulation is affected, cabin heat may become weak or inconsistent.
• Modern Porsche models may display coolant level or overheating warnings when leaks develop.

Why Replacement Matters:

• Prevents coolant leaks that can cause low coolant levels and loss of pressure.
  
• Helps avoid engine overheating, which can lead to severe and expensive engine damage.
  
• Restores proper coolant circulation, ensuring the cooling system performs efficiently under all conditions.
  
• Maintains reliable heater performance, since cabin heating depends on correct coolant flow.
  
• Protects other cooling components, as leaks can introduce air into the system and increase strain on hoses, seals, and the water pump.

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

94810635506

The product you are viewing cross references to these numbers

Coolant Hose.
Seal Included.

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

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

Diagram Ref No 14
(Diagram Ref No 15 Included)

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

95810607100

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
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95810662501

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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.

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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

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