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Porsche > Macan (95B) MK1 (2014-2018) > 95B.1 Macan Petrol 2.0L (237Bhp) 2014-18 > Engine Rebuild Parts > Oil System Parts > Breather Pipes >

Breather Line Cylinders 3-4. Porsche 982 Boxster / Cayman 2017>>  ❭  9A210752100

Breather Line Cylinders 3-4. Porsche 982 Boxster / Cayman 2017>> - 9A210752100
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9A210752100
Product Information
Product Information
Breather Line Cylinders 3-4.

The breather line for cylinders 3–4 is an integral component of the engine crankcase ventilation (PCV) system, designed to channel blow-by gases from specific cylinders back into the intake system. This process helps maintain proper pressure within the engine while reducing emissions and ensuring efficient combustion.

Fits:

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Diagram Ref No 2

What This Product Does:
  • Channels blow-by gases from cylinders 3–4 into the intake system
  • Maintains proper crankcase pressure balance
  • Supports efficient combustion and emissions control
  • Prevents buildup of harmful gases within the engine

Symptoms Of Wear Or Failure:
  • Cracked, brittle, or damaged hose
  • Oil leaks or residue around the breather line
  • Rough idle or engine running issues
  • Whistling noises caused by vacuum leaks
  • Increased oil consumption
  • Check engine light related to ventilation system faults

Why Replacement Matters:
  • Ensures correct crankcase pressure and airflow
  • Prevents vacuum leaks and oil leaks
  • Maintains optimal combustion and engine performance
  • Reduces emissions and oil consumption
  • Protects engine components from pressure-related damage



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9A210752100
9A210752100

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