Breather Line For Turbocharger, Cylinders 4-6. Porsche 991.1 / 991.2 Turbo / GT2 RS 2014-19  ❭  9A110724274

Breather Line For Turbocharger, Cylinders 4-6.

The breather line for the turbocharger (cylinders 4–6) is a key component of the engine crankcase ventilation and turbo system, designed to route blow-by gases and oil vapours safely away from the engine and turbocharger assembly. This line ensures proper pressure regulation and helps prevent oil contamination within the intake and turbo system.

Fits:

• Porsche 991.1 Turbo 3.8L (520 Bhp) 2014-16
• Porsche 991.1 Turbo S 3.8L (560 Bhp) 2014-16
• Porsche 991.2 Turbo Coupe 3.8L (540 Bhp) 2016-19
• Porsche 991.2 Turbo S Coupe 3.8L (580 Bhp) 2016-19
• Porsche 991.2 Turbo Cabriolet 3.8L (540 Bhp) 2016-19
• Porsche 991.2 Turbo S Cabriolet 3.8L (580 Bhp) 2016-19
• Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19

  
Diagram Ref No 16

What This Product Does:

• Channels blow-by gases from cylinders 4–6 to the intake/turbo system
• Regulates crankcase pressure in turbocharged engines
• Prevents oil vapour buildup and contamination
• Supports efficient combustion and emissions control

Symptoms Of Wear Or Failure:

• Cracked, brittle, or damaged hose
• Oil leaks or residue around the turbo area
• Whistling noises caused by vacuum leaks
• Rough idle or engine performance issues
• Increased oil consumption
• Check engine light related to ventilation faults

Why Replacement Matters:

• Ensures proper crankcase ventilation and pressure balance
• Prevents oil leaks and vacuum leaks
• Maintains optimal turbocharger performance
• Reduces oil contamination in the intake system
• Helps avoid costly engine and turbo damage

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9A110724274

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