Description
The Audi TT 8N Vacuum Valve is an original equipment turbocharger and parts component designed for use in first-generation Audi TT models. This OEM component ensures proper vacuum control within the system, resulting in stable turbocharger operation and predictable power delivery.
Specifications and technical data
- SKU: 078906283A
- Mark: Audi
- Condition: Used
- OEM Part Number: 078906283A
- Substitutable numbers: 078906283A, 078 906 283 A
- Category: Turbos & Parts
Purpose and function of the Audi TT 8N vacuum valve
The Audi TT 8N vacuum valve operates in the boost control circuit, responsible for precisely managing system pressure. A properly functioning component helps maintain:
- stable boost pressure across the full rev range,
- proper engine response to load,
- consistent operation of the turbocharger with the control electronics.
Thanks to this, the drive unit maintains predictable operating parameters and the risk of overloading or power drops is limited.
Original Audi brand – fit and build quality
This valve comes from Audi’s original equipment line, ensuring factory-standard workmanship and compatibility. It’s designed to work with the supercharger system without any modifications, while maintaining:
- factory mounting method,
- original vacuum and electrical connectors (if present in a given version),
- compliance with the operating parameters provided by the manufacturer.
By using OEM parts, you reduce the risk of adaptation problems, controller errors and leaks in the system.
Used condition – practical benefits for the user
This used Audi TT 8N vacuum valve is offered in used condition, making it a great option for drivers looking for a proven component at a reasonable price. This used OEM part includes:
- maintaining the original job specifications,
- better fit than many low-budget substitutes,
- possibility of economical repair of the charging system.
Used condition means traces of use, however, with proper functional verification, the valve can still ensure proper operation of the system for a long time.
Selection by OEM number and interchangeable numbers
This valve model falls into the turbocharger and parts category and is identified by its OEM number and available interchangeable numbers. Selecting by manufacturer’s designation helps avoid compatibility issues, especially between different engine versions in the Audi TT 8N.
If you’d like to deepen your knowledge of verifying component compatibility based on manufacturer markings, the guide: Buying parts online without risk – 5 ways to check compatibility by OEM numbers will be helpful. You’ll find practical tips on how to reduce the risk of errors when ordering components.
Other vacuum valves for Audi turbochargers
If you’re also looking for other turbocharger vacuum valves and parts for this brand, check out our selection of Audi turbocharger vacuum valves . This allows you to easily compare available options and choose the part best suited to your vehicle’s configuration.
Summary
The Audi TT 8N Vacuum Valve is a used, original equipment turbocharger and parts part designed for use in the supercharging system. Choosing an OEM component ensures factory fit, predictable performance parameters, and consistency with other system components, making it a sensible solution for repairing or restoring the supercharging system in the Audi TT 8N.






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