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Porsche // 997 (911) MK2 2009-2012 // Any
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The Coolant Expansion Tank Breather Line is a OE MATCH cooling system component designed to vent air and vapour from the coolant expansion tank. This breather hose ensures proper pressure regulation within the cooling system while supporting efficient coolant circulation and recovery.
Fits:
- Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
- Porsche 9YA Cayenne E-Hybrid V6 3.0L V6 (340Hp) 2018-23
- Porsche 9YA Cayenne Coupe E-Hybrid V6 3.0L (340Hp) 2020-23
- Porsche 9YA Cayenne S V6 2.9L Petrol (440Hp) 2018-23
- Porsche 9YA Cayenne Coupe S V6 2.9L Petrol (440Hp) 2019-23
- Porsche 9YA.2 Cayenne V6 3.0L Petrol (353Hp) 2023>>
- Porsche 9YA.2 Cayenne Coupe V6 3.0L (353Hp) 2023>>
- Porsche 9YA.2 Cayenne E-Hybrid V6 3.0L (470Hp) 2023>>
- Porsche 9YA.2 Cayenne E-Hybrid Coupe V6 3.0L (470Hp) 2023>>
- Porsche 9YA.2 Cayenne S E-Hybrid V6 3.0L (519Hp) 2023>>
- Porsche 9YA.2 Cayenne S E-Hybrid Coupe V6 3.0L (519Hp) 2023>>
Diagram Ref No 11
What This Product Does:
- Allowing trapped air and vapour to vent from the coolant reservoir
- Maintaining correct cooling system pressure balance
- Preventing airlocks within the coolant circuit
- Supporting efficient coolant recovery and circulation
- Helping ensure stable engine temperature regulation
Symptoms Of Wear Or Failure:
- Coolant leaks near the expansion tank
- Cracked, brittle, or split hose material
- Coolant smell from the engine bay
- Low coolant warning light
- Air present in the cooling system after bleeding
- Fluctuating engine temperature readings
- Coolant residue around hose fittings
Why Replacement Matters:
- Maintain correct cooling system pressure
- Prevent airlocks and circulation issues
- 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Related, superseded, cross reference or alternative numbers for comparison.
PAB12108115
The product you are viewing cross references to these numbers