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Air Hose 15 x 24 Inlet Manifold to Vacuum Limiter. Sold by the Meter. Porsche 911 turbo / 924 turbo ❭ 99923900740
- Porsche 911 1975-1977 3.0L Turbo (930)
- 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 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
Manifold to Vacuum Limiter Air Hose – 15 x 24mm
Sold by the metre
High-quality manifold to vacuum limiter air hose
designed for Porsche 911 Turbo, 964 Turbo, and 924 Turbo
models, supplied per metre for precise fitment and flexible
installation.
Fits:
- Porsche 911 1975-1977 3.0L Turbo (930)
- 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 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
Diagram ref no 39
This hose connects the intake manifold to the vacuum limiter, playing a critical role in regulating vacuum pressure within the turbo system. Proper vacuum control is essential for maintaining boost stability, engine efficiency, and overall drivability in turbocharged Porsche engines.
Manufactured to OEM specifications, this hose ensures durability, flexibility, and resistance to heat and pressure, making it ideal for maintenance, repair, or restoration of Porsche turbo vacuum systems.
Key Features
• Manifold to vacuum limiter hose
• Suitable for Porsche 911 Turbo, 964 Turbo, and 924 Turbo
• Part number 99923900740
• Designed for turbo vacuum and boost control systems
• Sold per metre for custom length applications
• Resistant to heat and pressure
• Flexible and durable construction
• OEM-style fit and performance
Function and Purpose
This hose is a vital component within the turbo vacuum system.
It helps to:
• Connect intake manifold to vacuum limiter
• Regulate vacuum pressure within the turbo system
• Support boost control and engine stability
• Prevent vacuum leaks affecting performance
• Ensure efficient turbocharger operation
Why Replace Vacuum Hoses
Turbo vacuum hoses operate under demanding conditions.
Common issues include:
• Cracking or splitting
• Vacuum leaks reducing boost control
• Hardening and reduced flexibility
• Inconsistent engine performance
Replacing worn hoses restores proper vacuum regulation and engine efficiency.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99923900740
The product you are viewing cross references to these numbers
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