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Porsche // 997 (911) MK2 2009-2012 // 997 MKII Carrera C4 3.6L 2009-12
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The Engine Coolant Breather Line is a OE MATCH cooling system component designed to vent trapped air and regulate pressure within the engine’s coolant circuit. This breather hose ensures efficient coolant circulation by preventing air pockets that can reduce cooling performance and cause temperature instability.
Fits:
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Diagram Ref No 11
What This Product Does:
- Allowing trapped air and vapour to vent from the coolant circuit
- Preventing airlocks that reduce cooling efficiency
- Maintaining correct cooling system pressure
- Supporting steady coolant flow
- Helping regulate engine operating temperature
Symptoms Of Wear Or Failure:
- Coolant leaks near hose connections
- Cracked, brittle, or split hose material
- Coolant smell from the engine bay
- Low coolant warning light
- Difficulty bleeding the cooling system
- Fluctuating or rising engine temperature
- Coolant residue around fittings
Why Replacement Matters:
- Maintain correct cooling system pressure
- Prevent airlocks and circulation issues
- Protect the engine from overheating damage
- Restore reliable coolant flow
- Avoid costly repairs caused by cooling system failure
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
PAB12108100
The product you are viewing cross references to these numbers