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Hose 4 x 10mm Sold by the Metre forInlet Manifold. Porsche 911 turbo / 964 turbo / 928 / 928S ❭ 00004320494
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
Hose - 4 x 9mm
Sold by the metre
High-quality 4x9mm hose designed for Porsche 911 Turbo (1978–1983), 964 Turbo, and Porsche 928 (1978–1983) models, supplied per metre for precise fitment and flexible installation.
This hose is used within the inlet manifold system,
where it plays a key role in maintaining correct airflow and vacuum balance.
Proper function of this hose is essential for stable engine performance,
efficient combustion, and reliable turbo operation.
Manufactured to OEM specifications, this hose provides durability, flexibility, and resistance to heat and pressure, making it ideal for maintenance, repair, or restoration of Porsche intake systems.
Key Features
• 4mm internal diameter, 9mm outer diameter
• Suitable for Porsche 911 Turbo (1978–1983), 964 Turbo, and 928 (1978–1983)
• Part number 00004320494
• Designed for inlet manifold and intake system use
• Sold per metre for custom length applications
• Resistant to heat and engine bay conditions
• Flexible and durable construction
• OEM-style fit and performance
Function and Purpose
This hose is an important part of the intake system.
It helps to:
• Maintain correct airflow within the inlet manifold
• Regulate vacuum pressure for engine systems
• Support efficient combustion and engine performance
• Prevent air leaks affecting drivability
• Ensure stable turbo and intake system operation
Why Replace Intake Hoses
Over time, intake hoses degrade due to heat and pressure.
Common issues include:
• Cracking or splitting
• Air leaks reducing engine performance
• Hardening and reduced flexibility
• Inconsistent engine operation
Replacing worn hoses restores proper airflow and engine efficiency.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
00004320494
The product you are viewing cross references to these numbers
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