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Porsche
Air Injection Pump to Injection Pump Filter Hose
High-quality air injection pump to injection pump filter hose designed for Porsche 911 Turbo and 964 Turbo models.
This hose forms part of the secondary air injection
(emissions) system, connecting the air injection pump to the injection pump
filter. It ensures proper airflow delivery within the system, supporting
emissions control and efficient engine operation.
Fits:
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Diagram ref no 18
Manufactured to OEM specifications, this hose provides durability, flexibility, and resistance to heat and engine bay conditions, making it ideal for maintaining or restoring Porsche turbo emissions systems.
Key Features
• Air injection pump to filter hose
• Suitable for Porsche 911 Turbo and 964 Turbo
• Part number 99923900440
• Designed for emissions / secondary air system
• Ensures proper airflow and system efficiency
• Resistant to heat and engine bay conditions
• OEM-style fit and performance
Function and Purpose
This hose is a key component within the air injection system.
It helps to:
• Connect the air injection pump to the filter
• Deliver air efficiently through the emissions system
• Support proper combustion and emissions control
• Maintain correct airflow within the system
• Ensure reliable engine and environmental performance
Why Replace Air Injection Hoses
Over time, hoses within the emissions system degrade due to heat and exposure.
Common issues include:
• Cracking or splitting
• Air leaks affecting emissions performance
• Hardening and loss of flexibility
• Reduced system efficiency
Replacing worn hoses ensures proper emissions system function and engine performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99923900440
The product you are viewing cross references to these numbers
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
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