Ford Fiesta Mk8 ST Engine Water Coolant Radiator Cooler K1BY-8005-AD

Ford Fiesta Mk8 ST Engine Water Coolant Radiator Cooler is an original cooling system component designed for diesel units. It ensures stable heat dissipation from the diesel engine, supporting its durability, efficiency, and safe operation under a wide range of loads. This is a solution for users looking for factory fitment, correct cooling performance, and compatibility with the original Ford installation.

Specifications and technical data

• SKU: K1BY-8005-AD
• Mark: Ford
• Condition: Used
• OEM Part Number: K1BY-8005-AD
• Substitutable numbers: K1BY-8005-AD, K1BY8005AD, 2255130
• Fuel type: Diesel
• Part type: Radiator
• Category: Radiators

Purpose and role in the cooling system

The presented water radiator is a component of the diesel engine cooling system in the Ford Fiesta Mk8 ST, responsible for absorbing heat from the coolant and dissipating it into the environment. Thanks to its tailored design, it works with the factory coolant pump, thermostat, and fans, maintaining the engine's operating temperature at a stable level during both city and dynamic driving.

A properly selected radiator in a diesel-powered car reduces the risk of overheating, power loss, and accelerated wear of components. Original Ford branding ensures that flow parameters and heat exchange surface areas are maintained in accordance with the vehicle manufacturer's design.

Construction and fitment for Ford Fiesta Mk8 ST

The water radiator has been designed for the specific mounting points and engine bay space of the ST version, which facilitates installation without modifications. The design provides for cooperation with standard coolant hoses and cooling system accessories, making it possible to maintain the original hose routing and proper fluid circulation.

This element is part of the Water Radiators category, meaning it is responsible for the primary heat exchange in the cooling system, rather than auxiliary functions. In practice, this translates into a key impact on the operating temperature of the power unit, especially in diesel engines that generate high thermal loads during prolonged driving under load.

Benefits of using an original Ford radiator

Using an original water radiator in the Ford Fiesta Mk8 ST brings a number of practical benefits:

• preservation of the factory cooling characteristics of the diesel engine,
• secure fitment to brackets, hoses, and covers in the engine bay,
• no need to modify the cooling system installation,
• consistency with other system components, such as fans and temperature sensors.

The used part allows for an economical repair while maintaining the original manufacturer's specification, which is particularly important in high-performance cars such as the ST version.

Condition, installation, and use in a diesel engine

The radiator comes from disassembly and is intended for reinstallation in a vehicle with a diesel engine, following prior verification of the system's tightness and cleanliness. Thanks to its factory origin, the installation process is similar to the manufacturer's service procedure, which facilitates workshop work and reduces vehicle downtime.

When replacing the radiator, it is recommended to simultaneously check the condition of hoses, clamps, coolant, and cooperating fans to restore the full efficiency of the entire cooling system and ensure stable operating temperature for the diesel unit.

If you are planning a comprehensive repair or upgrade of the engine area in your Ford and need other components from the same group, such as radiator cores, expansion tanks, or cooling modules, check the available parts in the Ford Water Radiators category.

Technical support and knowledge about the cooling system

To better understand how high summer temperatures affect the engine cooling system and why a properly selected water radiator and fans are so important for the durability of the power unit, it is worth checking out our guide: Summer heat vs. cooling system: used radiators and fans as a guarantee of savings. There, you will find practical tips regarding the operation and selection of used cooling components in passenger cars.