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Porsche // 991 (911) MK2 2016-2019 // 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
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Porsche Throttle Body to Intercooler Seal
This throttle body to intercooler seal is a
critical component within the turbocharged intake system, providing an airtight
seal between the intercooler outlet and the throttle body. It ensures that
compressed air delivered from the intercooler enters the engine without
pressure loss.
Fits:
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Diagram ref no 19
In turbocharged Porsche engines, maintaining a fully sealed charge air system is essential for performance, efficiency and reliability. Even a small failure in a sealing component can result in boost leaks, reduced power and engine management issues.
What This Seal Does
The seal sits between the intercooler and the throttle body, creating a secure and airtight connection.
It helps:
• Maintain correct turbo boost pressure
• Prevent air leaks within the intake system
• Ensure efficient airflow into the engine
• Support proper combustion and engine performance
• Maintain consistent throttle response
A properly functioning seal is essential for the correct operation of the turbo system.
Why Throttle Body Seals Fail
Sealing components are exposed to heat, pressure and constant airflow, which can lead to degradation over time.
Common causes of failure include:
- Heat exposure - High temperatures from compressed air can harden or deform the seal.
- Pressure stress - Continuous boost pressure can wear sealing surfaces.
- Material ageing - Over time, rubber or sealing materials lose elasticity.
- Removal and refitting - Seals can become damaged or deformed during servicing.
Symptoms of a Failing Seal
• Loss of turbo boost pressure
• Reduced engine performance
• Hissing noise from intake area
• Engine warning lights related to boost or airflow
• Poor throttle response
• Increased fuel consumption
Replacing a worn seal restores system integrity and prevents further performance issues.
Why You May Need to Replace This Seal
- Prevent Boost Leaks - A new seal ensures airtight connections within the intake system.
- Restore Engine Performance - Maintains proper airflow and boost pressure for optimal power delivery.
- Essential During Intercooler or Throttle Body Service - Recommended to replace whenever components are removed.
- Low-Cost Preventative Maintenance - A small component that plays a big role in turbo system efficiency.
Related reference numbers
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992145865
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