Ford Mondeo Mk5 Transmission Oil Cooler Pipes Lines Hoses DG98-7H420-AE

Ford Mondeo Mk5 Transmission Oil Cooler Pipes Lines Hoses is an original solution from the Oil coolers and lines group, designed for the automatic transmission oil cooling system. This component ensures stable routing of the cooling medium, which supports safe transmission operating temperatures and reduces the risk of overheating during intensive use.

Specifications and technical data

• SKU: 6378796
• Mark: Ford
• Condition: Used
• OEM Part Number: 6378796
• Substitutable numbers: 6378796, DG987H420AE, DG98-7H420-AE
• Part type: Oil Cooler Line
• Category: Oil Coolers & Lines

Purpose and function in the transmission oil cooling system

The transmission oil cooler pipes in the Ford Mondeo Mk5 are responsible for transporting oil between the heat exchanger and the cooler, stabilizing the transmission's operating temperature. A properly selected and sealed set of pipes reduces pressure drops, minimizes the risk of leaks, and supports uniform oil cooling throughout the entire circuit.

Thanks to the factory geometry and fitment for the specific model configuration, installation is straightforward, without the need for system modifications or the use of adapters. This is particularly important in modern transmissions, where stable oil temperature translates into smooth operation, seamless gear shifts, and the durability of internal components.

Construction and fitment for Ford Mondeo Mk5

The offered set of pipes has been designed specifically for the transmission oil cooling system in the Ford Mondeo Mk5, maintaining correct line routing, mounting points, and connections. This means:

• original-spec routing of the pipes in the engine bay,
• factory-standard ends for oil cooler and transmission connections,
• adaptation for operation under conditions of elevated temperature and oil pressure.

Such fitment facilitates service, shortens replacement time, and reduces the risk of installation errors that could result in leaks or improper cooling.

Benefits of using original oil cooler pipes

Using transmission oil cooler pipes dedicated to the Mondeo Mk5 allows for maintaining system performance at the levels intended by the vehicle manufacturer. Key advantages include:

• stable transmission oil temperature, which promotes transmission longevity,
• preservation of the factory automatic transmission characteristics, without unwanted jerking resulting from overheating,
• reduced risk of failures associated with oil leaks from the cooling system,
• easier diagnostics – the system retains its original configuration, which facilitates service work.

This solution is particularly recommended when replacing damaged, corroded, or leaking pipes, as well as during comprehensive maintenance of the transmission oil cooling system.

Component condition and installation recommendations

The product comes from the group of original Ford components and is offered as a used part, which allows for combining factory fitment with a favorable purchase cost. Before installation, it is recommended to perform a standard check of tightness, internal cleanliness, and the condition of the connectors, as well as to replace seals at connection points in accordance with the service procedure for the given model.

Proper installation of the transmission oil cooler pipes should be carried out while observing tightening torques and the system bleeding sequence to ensure uniform oil flow and avoid localized overheating.

Technical support and additional materials

To better understand the impact of a functional cooling system on the durability of the powertrain and accessories, it is worth checking out the guide on our blog: Engine cooling system – overheating, repair, and used radiators. The article discusses practical aspects of diagnostics and operation of cooling components, which facilitates making informed service decisions.

If you are planning a comprehensive repair or upgrade of the oil cooling area in your Ford and need other components from the same group, such as pipes, oil coolers, or additional installation sections, check out the available parts in the Ford oil coolers and lines category.