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Porsche // 924 (1977-1988) // 924 Turbo 2.0L 1982-84
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O-Ring – 11 x 2.5mm Water Coolant Breather
Line
Sold each
Maintain the integrity of your Porsche's cooling system with this Coolant Breather Line O-Ring.. Measuring 11 x 2.5mm, this factory-original sealing ring is designed to provide a reliable, leak-free seal between the coolant breather line and its associated components.
Fits:
- Porsche 957 Cayenne S / GTS 4.8L 2007-10
- Porsche 957 Cayenne Turbo / Turbo S 4.8L 2007-10
- 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 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 970.1 Panamera Diesel V6 3.0L 2011-13
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
- 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 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 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
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- Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18
Diagram ref no 12
Although small, this sealing ring plays a vital role in maintaining the integrity of the cooling system. It creates a watertight seal between the breather line and its mating components, preventing coolant leaks while allowing the cooling system to maintain the correct operating pressure. Replacing ageing or damaged O-rings during cooling system maintenance helps prevent coolant loss, overheating and expensive engine repairs.
What Does the Water Coolant Breather Line O-Ring Do?
The coolant breather line O-ring seals the connection between coolant pipes and breather line fittings within the engine's cooling system.
Its functions include:
- Preventing coolant leaks.
- Maintaining cooling system pressure.
- Ensuring efficient coolant circulation.
- Preventing air from entering the cooling system.
- Supporting correct engine operating temperatures.
- Helping maximise cooling system efficiency.
A correctly sealing O-ring is essential for maintaining the performance and reliability of the engine cooling system.
Why Does the O-Ring Need Replacing?
Over time, coolant seals are subjected to constant temperature fluctuations and coolant exposure, causing them to deteriorate.
Common causes of failure include:
- Heat cycling.
- Age-related hardening.
- Loss of elasticity.
- Coolant chemical degradation.
- Damage during removal.
- Compression set after years of service.
- Cooling system repairs requiring seal replacement.
As with most sealing components, O-rings should always be replaced once removed.
Symptoms of a Failing Coolant Breather Line O-Ring
Signs of a worn or damaged seal include:
- Coolant leaks around the breather line.
- Pink, white or dried coolant residue.
- Low coolant warning messages.
- Frequent coolant top-ups.
- Sweet coolant smell from the engine bay.
- Reduced cooling system pressure.
- Small coolant drips after driving.
Replacing the O-ring at the first sign of leakage helps prevent overheating and further cooling system damage.
When Should the O-Ring Be Replaced?
Replacement is recommended whenever:
- The coolant breather pipe is removed.
- Cooling system components are replaced.
- A coolant leak is diagnosed.
- Carrying out thermostat or water pump repairs.
- Performing preventative cooling system maintenance.
- Rebuilding or servicing the engine.
Installing a new O-ring during reassembly ensures a reliable seal and reduces the risk of future coolant leaks.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99970758640
The product you are viewing cross references to these numbers
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
Please note: This hose is no longer available from Porsche.
Fits:
Porsche 924 Turbo / 924 GT 1976-85
Click 'Zoom in' for large parts diagram.
Diagram ref no 30
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93110615900
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
Please note: This hose is no longer available from Porsche.
Fits:
Porsche 924 1976-85
Porsche 924 Turbo / 924 GT 1976-85
Diagram ref no 31
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93110615700
The product you are viewing cross references to these numbers