Ford Kuga C394 Mk1 Water Coolant Expansion Reservoir Bottle Tank 8V61-8K218-DE

Ford Kuga C394 Mk1 Water Coolant Expansion Reservoir Bottle Tank is an original cooling system component from the Expansion tanks category, designed for use in Ford vehicles. This used OEM part ensures factory-fit, stable cooling system performance, and predictable behavior under operating conditions.

Specifications and technical data

• SKU: AV41-8K218-DA
• Mark: Ford
• Condition: Used
• OEM Part Number: AV41-8K218-DA
• Substitutable numbers: AV41-8K218-DA, AV418K218DA
• Part type: Coolant Expansion Tank
• Category: Expansion & Overflow Tanks

Technical specifications and application

The expansion tank in the Ford Kuga C394 Mk1 is responsible for compensating for changes in coolant volume, stabilizing system pressure, and safely discharging excess fluid. The original Ford design ensures:

• proper cooperation with the factory water pump and radiator,
• correctly calibrated operating capacity,
• compatibility with standard cooling system hoses and connectors.

As a result, installation is straightforward, with no need for system modifications or the use of additional adapters.

Benefits of using an original expansion tank

Using an original expansion tank in the Ford Kuga C394 Mk1 translates into a number of practical operational benefits:

• Factory geometric fit – maintaining the correct position relative to the bodywork and other engine bay components.
• Compatibility with standard sensors and cooling system accessories.
• Stable system operation across a wide range of operating temperatures.
• Reduced risk of leaks resulting from the poor fitment of aftermarket replacements.

For the user, this means predictable engine behavior in both city and highway conditions, as well as a lower risk of engine overheating.

Part condition and installation aspects

The offered expansion tank is a used component, which allows for a cost-effective purchase while maintaining the manufacturer's original specifications. The part comes from vehicle dismantling, ensuring structural compatibility with the factory cooling system of the Ford Kuga C394 Mk1.

During installation, it is recommended to:

• verify the condition of hoses and clamps,
• check for leaks after the first engine start,
• bleed the cooling system in accordance with the Ford service procedure.

This approach minimizes the risk of future leaks and ensures stable system performance.

Application in service and cooling system repairs

This expansion tank is suitable for both standard replacement of a damaged part and more extensive service work within the engine bay. Choosing an original Ford part allows you to maintain the consistency of the cooling system with factory design assumptions, which is particularly important for vehicles used intensively or with higher mileage.

If you are planning a comprehensive repair or upgrade of the engine area in your Ford and need other items from the same group, such as additional tanks, mounting elements, or related cooling system components, check out the available parts in the Ford expansion tanks category.

Why choose a used OEM part

Choosing a used, original expansion tank is a reasonable compromise between cost and quality. The OEM part retains factory parameters while allowing for cost savings compared to a new component. For informed users and workshops, this is often the preferred solution, especially when repairing vehicles that are several years old.

If you want to better understand the advantages of using original components from dismantling and their impact on the safety and durability of repairs, it is worth reading the article OEM quality guarantee and safety – why used original car parts are the best choice for your vehicle?.