Ford Focus Mk2 Air Conditioning Heater Matrix Core 4M5H-19860-BE

Ford Focus Mk2 Air Conditioning Heater Matrix Core is a component from the Heat exchangers group, responsible for the efficient transfer of heat into the vehicle's interior. Designed for petrol engine versions, it ensures stable operation of the cabin heating system and proper integration with the air conditioning system.

Specifications and technical data

• SKU: RHD-4M5H-19860-BE
• Mark: Ford
• Condition: Used
• OEM Part Number: 4M5H-19860-BE
• Substitutable numbers: 4M5H-19860-BE, 4M5H19860BE, 4M5H-19860-BD, 1513887
• Fuel type: Petrol
• Part type: Heater Core
• Category: Heater Cores

Purpose and function in the heating system

The heater matrix in the Ford Focus Mk2 plays a key role in the coolant circuit, responsible for transferring thermal energy from the engine cooling system to the air directed into the cabin. In combination with the blower fan and air flow control flaps, it allows for precise maintenance of a comfortable temperature inside the vehicle, even in low outside temperatures.

This component is particularly important in cars with a petrol engine, where stable heat dissipation from the power unit affects both driving comfort and the durability of other cooling system components.

Construction and technical characteristics

The heater matrix belongs to the Heat exchangers category, which means its design is based on a dense network of channels and fins that increase the heat exchange surface. This construction allows for efficient air heating while maintaining compact dimensions, necessary for installation in the heater housing under the dashboard.

The channel layout is optimized for coolant flow and minimization of pressure losses, which reduces the load on the coolant pump. In turn, a properly selected fin arrangement improves heat transfer to the air stream, which translates into faster heating of the vehicle interior after starting the engine.

Compatibility with petrol units

The presented heater matrix is intended for vehicles powered by petrol, which is significant from the point of view of the engine's thermal operating characteristics. Petrol units reach different operating temperature ranges than diesel ones, so the choice of heat exchanger must take into account flow parameters and heat transfer efficiency under typical operating conditions.

A properly selected heater matrix ensures:

• stable cabin heating at various engine loads,
• proper cooperation with the air conditioning and ventilation system,
• maintenance of the appropriate coolant temperature in the small circuit.

Component condition and installation aspects

The offered heater matrix is a used part, which allows for an economical repair of the heating system while maintaining the manufacturer's original specifications. Replacement of this component is recommended in case of leaks, a drop in heating efficiency, air in the system, or the presence of contaminants in the coolant circuit.

During installation, it is worth paying attention to:

• proper bleeding of the cooling system after replacement,
• checking the condition of the fluid supply and return hoses,
• checking for leaks after the engine has warmed up to operating temperature for the first time.

Why choose an original Ford heat exchanger

The heater matrix from the Ford brand ensures compliance with the factory design of the Focus Mk2 heating system, which translates into proper fitment, predictable operating parameters, and compatibility with other system components. Using an original heat exchanger reduces the risk of installation problems and eliminates the need for system modifications.

If you are planning a comprehensive repair or upgrade of the heating and air conditioning zone in your Ford and need other elements from the same group, such as additional heaters, radiators, or other exchangers, check the available parts in the Ford heat exchangers category.

Technical support and interior system development

For users who are planning to improve cabin ergonomics and comfort in parallel with heating system repairs, a guide on vehicle interior modifications may be helpful. In the article Car interior tuning with Global Parts, you will find practical tips on how to combine the replacement of technical components with improving functionality and driving comfort.