Thermostat Housing Audi RS3 8V TTRS 8S 2.5 TFSI Coolant Unit 07K121111D

Thermostat Housing Audi RS3 8V TTRS 8S 2.5 TFSI Coolant Unit is a component from the Thermostats and housings category, designed for the 2.5 TFSI engine cooling system in Audi sports models. It is responsible for precise control of the coolant circulation, which supports stable operating temperatures for the engine and ensures proper interaction with other components.

Specifications and technical data

• SKU: 07K121111D
• Mark: Audi
• Condition: Used
• OEM Part Number: 07K121111D
• Substitutable numbers: 07K121111D, 07K 121 111 D
• Category: Thermostats & Housings

Purpose and function in the cooling system

The thermostat housing in the 2.5 TFSI engine plays a key role in managing the flow of coolant between the engine block, the radiator, and other system components. A properly functioning thermostat helps maintain the optimal operating temperature, which promotes stable performance, correct operation of the lubrication system, and reduced fuel consumption. Using an original solution from the Audi range allows for maintaining the factory operating parameters of the engine.

Benefits of using an original thermostat housing

Choosing a component from the Thermostats and housings group dedicated to the Audi RS3 8V and TTRS 8S ensures:

• maintenance of factory characteristics for opening and closing the coolant circuit,
• proper cooperation with the stock coolant pump and radiator,
• consistency with factory mounting points and cooling hoses,
• reduction of the risk of engine overheating or undercooling during dynamic driving.

As a result, the cooling system remains tuned according to the manufacturer's specifications, which is particularly important in high-load 2.5 TFSI units.

Product characteristics and fitment

Thermostat Housing Audi RS3 8V TTRS 8S 2.5 TFSI Coolant Unit has been designed as a component that works with factory engine equipment, which facilitates installation and limits the need for additional modifications. The design provided by the vehicle manufacturer ensures proper coolant flow, as well as compatibility with stock sensors and connection ports in the given system.

The product comes from the Audi brand and is a used part, which allows for economical repair while maintaining the original specification. This solution is particularly beneficial when servicing high-performance units where compliance with the factory cooling system design is essential.

Condition, inspection, and service application

This used component is a good choice in situations where it is necessary to replace a damaged thermostat housing or the complete thermostat assembly in a 2.5 TFSI engine. This type of part is suitable both for standard repairs and for restoring the factory configuration after modifications or interventions in the cooling system. Before installation, it is recommended to perform a standard check of the system's tightness and verify the correct operation of the thermostat under operating conditions.

Expanding Audi cooling system service

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other elements from the same group, such as additional housings, thermostat assemblies, or connection components, check out the available parts in the Audi Thermostats and housings category.

When planning broader service work, including body parts after a collision or interference in the engine compartment, a guide on selecting used OEM components may be helpful – you can find more practical tips in the article Bodywork and exterior – post-accident repairs using dismantled parts.