Audi S8 D3 Q7 Coolant Pump Water Cooling Thermostat Housing 079121013N 079010D

The Audi S8 D3 Q7 Water Pump Thermostat Housing is an original part from the Water Pumps group, designed for the engine cooling system in Audi vehicles. Using a complete thermostat housing with a water pump allows for efficient restoration of the factory coolant circulation, which translates to stable engine operating temperature and safe vehicle operation.

Specifications and technical data

• SKU: 079121013N
• Mark: Audi
• Condition: Used
• OEM Part Number: 079121013N
• Substitutable numbers: 079121013N, 079 121 013 N, 079010D
• Category: Water Pumps

Purpose and Function in the Cooling System

The presented water pump with thermostat housing has been designed as an original component for selected Audi models, including the S8 D3 and Q7 series, where it is responsible for forcing coolant circulation and cooperating with the thermostat that controls engine operating temperature. Integrating the pump with the thermostat housing reduces the number of connections, which promotes system tightness and facilitates servicing.

A cooling module configured in this way allows for:

• maintaining stable engine operating temperature across a wide range of loads,
• efficient heat dissipation from the block and heads,
• reducing the risk of overheating during dynamic driving, typical for S versions,
• simplifying diagnostics and replacement in case of leaks or reduced pump performance.

Benefits of Using an Original Audi Part

The original Audi water pump with thermostat housing ensures proper fit to factory mounting points and compatibility with the stock cooling system architecture. This results in predictable installation without the need for modifications or additional adapters. For the user, this means less vehicle downtime and a reduced risk of leaks after repair.

Key advantages of this solution include:

• factory-designed cooling channel geometry, ensuring proper fluid flow,
• compatibility with the stock thermostat and engine accessories,
• consistency with Audi service documentation, which facilitates workshop operations.

Condition, Verification, and Service Application

This part comes from the group of used parts, making it an attractive cost-effective alternative while maintaining original manufacturer specifications. Such components are often chosen for repairs of intensively used vehicles where both OEM compliance and a reasonable service budget are important. The water pump with thermostat housing is suitable for replacing a damaged module, addressing leaks, or for comprehensive cooling system service after an overheating failure.

Due to its importance for engine operational safety, installation in a specialized workshop is recommended, adhering to cooling system bleeding procedures and leak checks after the engine is started.

Assistance with Selection and Related Components

Selecting the correct water pump with thermostat housing for a specific Audi engine version should always be based on the vehicle's identification data and part numbers, which minimizes the risk of incompatibility during installation. For extensive cooling system repairs, it is advisable to simultaneously check the condition of hoses, radiator, expansion tank, and temperature sensors to avoid recurring faults.

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other parts from the same group, such as additional cooling modules, other pumps, or housings cooperating with the thermostat system, check the available parts in the Audi Water Pumps category.

For a more complete understanding of the relationship between the cooling system and engine power supply, and the impact of operating temperature on engine durability, an article describing diagnostics and selection of power supply components may be helpful – you can find it here: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair.