Ford Transit Custom 2.0 EcoBlue Water Pump Coolant Pump 6M05N1339

Ford Transit Custom 2.0 EcoBlue Water Pump Coolant Pump is an original part from the Water pumps group, designed for the cooling system of a diesel engine. Thanks to its factory design, it ensures proper coolant circulation, stabilizing the engine temperature and supporting its safe, long-term operation.

Specifications and technical data

• SKU: 6M05N1339
• Mark: Ford
• Condition: Used
• OEM Part Number: 6M05N1339
• Substitutable numbers: 6M05N1339, GK2Q-8501-AD, 2540900
• Fuel type: Diesel
• Category: Water Pumps

Purpose and function in the cooling system

The presented pump is dedicated to the Diesel engine from the EcoBlue family, where it is responsible for the forced circulation of coolant between the engine block and the radiator. A properly functioning pump reduces the risk of overheating, protects the cylinder head, seals, and auxiliary components, and stabilizes the engine's operating conditions across a wide range of loads. In the Ford Transit Custom cooling system, the pump works in conjunction with the thermostat, radiator, hoses, and expansion tank, creating a cohesive heat dissipation system. Using a component with factory-compliant parameters allows for maintaining the correct flow and pressure characteristics, which translates into predictable engine behavior in city traffic and under heavy loads.

Benefits of using an original Ford pump

Choosing a pump from the Ford brand means maintaining the geometry and operating characteristics consistent with the vehicle manufacturer's design. This is particularly important in modern EcoBlue units, where the cooling system is closely linked to exhaust emission systems and engine control strategies. Key advantages of using this pump include:

• factory fitment for engine mounts and accessories,
• maintenance of the correct direction and efficiency of coolant flow,
• consistency with the parameters of the diesel unit,
• reduction of the risk of leaks and incorrect pump drive tension. As a result, installation is predictable, and after replacement, the correct thermal operating conditions of the engine can be restored without the need for additional modifications.

Product characteristics and application in Diesel engines

The pump is designed for diesel-powered engines, where a stable operating temperature has a direct impact on the durability of injectors, the turbocharger, and lubrication system components. In Diesel engines, which often operate under high loads, efficient coolant circulation is particularly important for maintaining proper oil viscosity and protecting mechanical components. This element, as a part from the Water pumps category, is an important component of the entire cooling system. Replacing a worn pump with a functional one helps reduce the risk of failures such as overheating, airlocks in the system, or local overheating of water channels in the block and cylinder head.

Product condition and installation aspects

The pump is offered in used condition, which allows for an economical restoration of the cooling system's efficiency while maintaining the original manufacturer's specifications. Before installation, a standard service procedure is recommended: checking the system for leaks, verifying the condition of hoses, the thermostat, and the quality of the coolant. Due to its factory origin, the pump is structurally prepared for installation in the designated location in the Transit Custom engine, without the need for mounting adaptations. A correctly performed replacement, combined with bleeding the system, allows for the quick restoration of stable engine operating conditions.

Selection by part numbers and technical support

The element has an OEM part number and interchangeable numbers, which facilitates precise identification and selection for a specific Ford Transit Custom configuration. In case of doubt, it is worth comparing the markings with the vehicle documentation or the removed pump to avoid ordering errors. To better understand the relationships between the cooling system and engine power supply, as well as the principles of selecting components by manufacturer markings, an article describing the diagnostics and operation of power supply elements may be helpful – you can find it here: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Related products from the same group

If you are planning a comprehensive repair or upgrade of the engine area in your Ford and need other elements from the same group, such as pump bodies, impellers, or drive housings, check the available parts in the Ford Water pumps category.