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- Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
- Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD (420Hp) 2014-16
- Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD Executive 2014-16
- Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD (420Hp) 2014-16
- Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD Executive 2014-16
- Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
- Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
- Porsche 95B.1 Macan S Diesel 3.0L V6 (258Bhp) 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
This original Porsche coolant vent / breather line forms part of the engine cooling system, helping bleed air and route coolant vapour or coolant flow correctly through the cooling circuit.
Fits:
Porsche 958 Cayenne 3.6L 2011 - 2018
Porsche 95B.1 Macan 3.0L / 3.6L 2014 - 2018
Porsche 970.2 Panamera 3.0L 2013 - 2016
Diagram ref no 12
What This Part Does / Functions
• Helps vent air from the engine cooling system
• Routes coolant or coolant vapour through the correct cooling circuit path
• Supports proper coolant circulation and system bleeding
• Helps reduce the risk of trapped air pockets in the cooling system
• Assists stable engine operating temperature
• Replaces a cracked, brittle, leaking or damaged original vent line
• Provides correct OE Porsche routing, shape and connection fitment
• Supports reliable cooling system performance.
Why Replace This Part?
Coolant vent lines are exposed to heat cycles, coolant pressure, vibration and age-related plastic or rubber deterioration. Over time, the line can become brittle, crack, split or leak. A failed coolant vent line may cause coolant loss, coolant smell, low coolant warnings, pressure loss or overheating. Replacing it with a Genuine Porsche OE engine coolant vent line helps restore correct cooling system venting and factory fitment. This is especially important on Porsche V6 applications where the coolant vent line routing is critical to proper system bleeding and coolant circulation.
Common Symptoms of a Faulty Coolant Vent Line
• Coolant smell from the engine bay
• Visible coolant leak or dried coolant residue
• Low coolant warning
• Cooling system pressure loss
• Air trapped in the cooling system
• Engine temperature fluctuations
• Brittle, cracked or broken coolant line
• Coolant seepage after previous cooling system work.
When to Replace
• This Part If the original vent line is cracked, brittle, leaking or damaged
• If coolant loss is traced to the vent line
• During cooling system overhaul or hose replacement
• When replacing related coolant pipes, hoses or thermostat components
• If the cooling system is difficult to bleed correctly
• During intake manifold or engine-top service where the line is disturbed
• When recommissioning a vehicle with unknown cooling system history
Where It Fits on the Car
This coolant vent line fits in the engine cooling system, routed around the engine coolant pipework / breather circuit. It connects into the coolant venting system and helps remove air from the cooling circuit. Correct routing and secure connections are important to prevent leaks and maintain proper cooling system operation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94610602661
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
Sold each - 2 required per car
Fits:
Porsche 955 Cayenne 3.2L >>2005
Diagram ref no 12
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510666600
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
- 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 3.6L 2007-10
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
Water Coolant Hose – Essential for Reliable Cooling System Performance
This water coolant hose s designed for the Porsche
955 and 957 models, forming a critical part of the engine’s cooling
circuit. It transports coolant to and from the engine and radiators, ensuring
proper heat dissipation and stable operating temperatures—vital for
high-performance V8 engines.
Fits:
- Porsche 955 Cayenne 3.2L V6 2003-06
- 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 3.6L 2007-10
- Porsche 957 Cayenne S/GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
Diagram ref no 29
With age and heat cycles, coolant hoses can weaken, crack or develop internal swelling. A compromised hose may cause coolant leaks, overheating, reduced engine performance or complete cooling system failure. Replacing a worn hose with a high-quality alternative ensures the V8 Cayenne continues to run cool, efficient and trouble-free.
What This Coolant Hose Does
This specialised coolant hose:
- Transfers coolant between key cooling components
- Maintains optimal engine temperature under load
- Helps prevent overheating during towing or spirited driving
- Supports proper coolant circulation in V8 Cayenne engines
- Seals securely to avoid leaks and pressure loss
A healthy coolant hose is essential for maintaining engine reliability, especially in high-output S, GTS and Turbo variants.
Why Coolant Hoses Fail on Porsche Cayenne V8 Engines
Typical issues include:
- Heat-induced
rubber degradation from repeated thermal cycles
- Cracking
or splitting caused by age and vibration
- Internal
hose collapse, restricting coolant flow
- Coolant
contamination, accelerating material breakdown
- Pressure
spikes from failing thermostats or caps
- Exposure to oil, which weakens hose material
Symptoms of failure may include coolant smells, visible drips, overheating warnings, or low coolant levels.
Why You Should Replace a Faulty Coolant Hose
Replacing a worn coolant hose provides:
- Restored coolant pressure and circulation efficiency
- Prevention of leaks and overheating
- Protection of sensitive engine components
- Reduced risk of roadside breakdowns
- Improved long-term reliability for engines
Given the high engine bay temperatures in Cayenne, S, GTS and Turbo models, replacing hoses proactively is a smart preventative step.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510607300
The product you are viewing cross references to these numbers
- Porsche 955 Cayenne 3.2L V6 2003-06
- 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 3.6L 2007-10
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
Water Coolant Hose.
The OE Match Water Coolant Hose is a high-quality replacement cooling system hose designed to ensure the efficient circulation of engine coolant between key cooling system components on compatible Porsche models. Manufactured to OE specifications for fit, flexibility and durability, this hose helps maintain optimum engine operating temperature by providing a secure, unrestricted flow of coolant.
Fits:
- Porsche 955 Cayenne 3.2L V6 2003-06
- 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 3.6L 2007-10
- Porsche 957 Cayenne S/GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
Diagram Ref No 29
Constructed from premium multi-layer reinforced EPDM rubber, the hose is engineered to withstand high coolant pressures, extreme temperature fluctuations, engine vibration and long-term exposure to coolant. Precision-moulded to match the original factory routing, it provides direct OE-style fitment and dependable, leak-free performance.
What This Product Does:
Symptoms Of Wear Or Failure:
- Visible coolant leaks.
- Cracked, split or swollen hose.
- Soft, brittle or deteriorated rubber.
- Coolant smell from the engine bay.
- Low coolant level.Engine overheating.
- White, pink or blue coolant residue around hose connections.
- Bulging hose when under pressure.
- Steam from the engine compartment.
- Coolant warning light or frequent coolant top-ups.
Why Replacement Matters:
- Coolant hoses operate in demanding conditions, where they are exposed to constant pressure cycles, hot coolant, engine vibration and changing temperatures. Over time, the rubber can harden, crack or weaken, while the internal reinforcement may deteriorate, increasing the risk of coolant leaks or sudden hose failure.
- A leaking or burst coolant hose can quickly reduce coolant levels, leading to engine overheating and potentially severe engine damage, including cylinder head distortion, head gasket failure and premature wear of internal engine components. Even a minor leak can reduce cooling system efficiency and result in costly repairs if left unattended.
- Replacing a worn or damaged coolant hose restores the integrity of the cooling system and ensures reliable coolant circulation. The OE Match replacement provides factory-style fitment, premium-quality materials and long-lasting durability, helping maintain optimum engine temperature, improve reliability and protect the performance and longevity of your Porsche.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95510607300
The product you are viewing cross references to these numbers