Audi A4 B9 Additional Coolant Pump Mount Bracket Holder 2.0 TDI 04L121093G

Audi A4 B9 Additional Coolant Pump Mount Bracket Holder 2.0 TDI is an original component from the Water pumps group, designed for the stable mounting of the auxiliary coolant pump in the diesel engine cooling system. The precise geometry of the bracket ensures proper positioning of the pump relative to the hoses and other components, which promotes even fluid flow and the correct operation of the entire system.

Specifications and technical data

• SKU: 04L121093G
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L121093G
• Substitutable numbers: 04L121093G, 04L 121 093 G
• Category: Water Pumps

Purpose and function in the cooling system

The Audi A4 B9 2.0 TDI additional coolant pump mount bracket is responsible for the rigid, repeatable mounting of the auxiliary pump in the engine bay. A correctly installed component:

• maintains the pump in its designed operating position,
• reduces vibrations transmitted to the pump housing and cooling hoses,
• minimizes the risk of leaks at hose connections,
• supports stable coolant circulation under critical engine load ranges.

Using an original bracket is particularly important in diesel engines, where the cooling system operates under significant thermal load, and mounting accuracy affects the durability of the pump and hoses.

Benefits of using an original Audi bracket

Choosing an original coolant pump mount bracket for the Audi A4 B9 provides a range of practical assembly and operational advantages:

• factory fitment to mounting points on the body and engine,
• compatibility with the geometry of the stock pump and factory hose routing,
• no need for alterations, custom adapters, or mounting modifications,
• preservation of the stiffness and vibration damping designed by the manufacturer.

As a result, installation is efficient, and the risk of subsequent looseness, cracks, or incorrect pump alignment is limited. This solution is particularly beneficial when replacing a damaged bracket after a collision, engine bay intervention, or cooling system upgrade.

Characteristics of the used component

The offered bracket comes from dismantling, which allows for maintaining the original assembly specification while optimizing repair costs. As a structural part without moving components, this type of element retains its geometric and mounting properties for a long time under proper use. Before reuse, a standard inspection of mounting surfaces, threads, and contact points with the pump and body is recommended.

Application in service practice

The bracket is suitable for both professional service centers and independent workshops specializing in the Audi brand. It is particularly useful in situations where:

• the factory mount has been damaged as a result of impact or overheating,
• it is necessary to replace the auxiliary coolant pump along with its accessories,
• the stock cooling system is being restored after previous modifications.

Selecting the bracket according to the manufacturer's markings allows for avoiding compatibility issues and ensures consistency with the vehicle's service documentation.

Related components and technical knowledge development

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 housings, impellers, or complete mounting assemblies, check the available parts in the Audi Water pumps category.

To deepen your knowledge about selecting components according to manufacturer markings, as well as diagnostics and regeneration of engine power supply elements, it is worth reading the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses practical service procedures, part selection by markings, and typical operational questions.