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- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
Breather Hose - 15 x 2.5mm
Sold by the metre
High-quality breather hose with 15 x 2.5mm dimensions, designed for Porsche 924, 924S, and 944 models.
This versatile hose is used across multiple systems,
including fuel tank breather, oil breather, and inlet breather applications,
making it an essential component for maintaining proper ventilation and
pressure balance within the engine and fuel systems.
Fits:
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-85
Diagram ref no 6
Engineered to OEM specifications, this hose offers durability, flexibility, and resistance to heat, oil, and fuel vapours, ensuring reliable performance in demanding engine bay environments. Ideal for maintenance, repair, or restoration of classic Porsche models.
Key Features
• 15 x 2.5mm breather hose specification
• Suitable for Porsche 924, 924S, and 944
• Part number N0203631
• Multi-use: fuel tank, oil, and inlet breather systems
• Resistant to heat, oil, and fuel vapours
• Flexible and durable construction
• OEM-style fit and performance
Function and Purpose
This breather hose serves multiple ventilation roles across the vehicle.
It helps to:
• Vent fuel tank vapours safely
• Regulate pressure in oil breather systems
• Maintain airflow within inlet systems
• Prevent pressure build-up in critical components
• Support efficient engine and fuel system operation
Why Replace Breather Hoses
Breather hoses are exposed to heat, oil, and vapours, leading to wear over time.
Common issues include:
• Cracking or splitting
• Oil or vapour leaks
• Hardening and loss of flexibility
• Reduced ventilation efficiency
Replacing worn hoses ensures proper system balance and prevents performance issues.
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N0203631
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The crankcase housing breather line is a key component of the engine crankcase ventilation system, designed to route blow-by gases from the crankcase back into the intake system. This process helps regulate internal engine pressure and ensures proper recirculation of gases for improved efficiency and emissions control.
Fits:
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Diagram Ref No 4
What This Product Does:
- Channels blow-by gases from the crankcase to the intake system
- Regulates internal engine pressure
- Prevents buildup of harmful gases within the engine
- Supports efficient combustion and emissions control
Symptoms Of Wear Or Failure:
- Oil leaks or residue around the breather line
- Cracked or brittle hose material
- Increased oil consumption
- Rough idle or engine performance issues
- Whistling noises caused by vacuum leaks
- Check engine light related to ventilation system faults
Why Replacement Matters:
- Ensures correct crankcase pressure regulation
- Prevents oil leaks and vacuum leaks
- Maintains proper airflow and combustion efficiency
- Reduces emissions and oil consumption
- Protects engine components from pressure-related damage
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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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