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Porsche
Hose 4 x 10mm – Throttle Body to Vacuum Limiter
High-quality 4x10mm hose designed for Porsche 911 models from 1974 to 1977, connecting the throttle body to the vacuum limiter.
This hose plays a crucial role in maintaining correct vacuum
regulation within the intake system. By linking the throttle body to the vacuum
limiter, it ensures stable pressure control, supporting smooth engine operation
and consistent performance.
Fits:
Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
Porsche 924 Turbo 2.0L 1979-81
Porsche 924 Turbo 2.0L 1982-84
Diagram ref no 64
Supplied per metre, this hose allows precise replacement and routing, making it ideal for maintenance, repair, or restoration of classic Porsche 911 intake and vacuum systems. Manufactured to OEM specifications for durability and reliability.
Key Features
• 4mm internal diameter, 10mm outer diameter
• Suitable for Porsche 911 (1974–1977)
• Part number 99918171540
• Connects throttle body to vacuum limiter
• Designed for intake and vacuum 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 a key component of the intake vacuum system.
It helps to:
• Connect throttle body to vacuum limiter
• Regulate vacuum pressure within the intake system
• Maintain stable engine performance
• Prevent vacuum leaks affecting drivability
• Support efficient combustion and airflow
Why Replace Vacuum Hoses
Over time, vacuum hoses degrade due to heat and ageing.
Common issues include:
• Cracking or splitting
• Vacuum leaks reducing engine efficiency
• Hardening and reduced flexibility
• Poor engine response and instability
Replacing worn hoses restores proper vacuum control and engine performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99918171540
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
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