Coolant Breather Line. Porsche 9YA / 9YA.2 Cayenne 3.0L 2018>>  ❭  PAB12108125

Coolant Breather Line.

The Coolant Breather Line is a genuine Porsche cooling system component designed to vent trapped air and regulate pressure within the coolant circuit. This breather hose ensures efficient coolant circulation by preventing air pockets that can compromise cooling performance.

Fits:

• Porsche 9YA Cayenne V6 3.0L Petrol (340Hp) 2018-23
• Porsche 9YA Cayenne Coupe V6 3.0L Petrol (340Hp) 2019-23
• Porsche 9YA.2 Cayenne V6 3.0L Petrol (353Hp) 2023>>
• Porsche 9YA.2 Cayenne Coupe V6 3.0L (353Hp) 2023>>

  
Diagram Ref No 13

What This Product Does:

• Allowing trapped air and vapour to vent from the coolant circuit
• Preventing airlocks that reduce cooling efficiency
• Maintaining stable cooling system pressure
• Supporting steady coolant flow
• Helping regulate engine operating temperature

Symptoms Of Wear Or Failure:

• Coolant leaks near the hose or connection points
• Cracked or brittle hose material
• Coolant smell from the engine bay
• Low coolant warning light
• Difficulty bleeding the cooling system
• 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 coolant flow
• Avoid costly repairs caused by cooling system failure

Related reference numbers
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PAB12108125

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