Ford Transit Connect 1.8 Duratec Thermostat Coolant Housing Petrol XS4G9K478BD

Ford Transit Connect 1.8 Duratec Thermostat Coolant Housing is a component from the Thermostats and housings category, responsible for precise management of the engine's operating temperature. A properly selected thermostat in a petrol engine ensures stable thermal conditions, which translates into smooth operation, component durability, and predictable cooling system performance.

Specifications and technical data

• SKU: XS4G9K478BD
• Mark: Ford
• Condition: Used
• OEM Part Number: XS4G9K478BD
• Substitutable numbers: XS4G9K478BD
• Fuel type: Petrol
• Category: Thermostats & Housings

Purpose and function in the cooling system

The presented coolant thermostat is dedicated to the Duratec petrol engine family used in the Transit Connect model. Its task is to control the flow of coolant between the engine block and the radiator, ensuring that the engine reaches its operating temperature as quickly as possible and then maintains it within a stable range during both city and highway driving.

A properly functioning thermostat:

• reduces the risk of engine overheating under high load,
• prevents prolonged operation on an underheated engine,
• supports even heat distribution throughout the cooling system,
• positively influences fuel consumption and the performance parameters of the petrol unit.

Technical characteristics and fitment

The thermostat comes from the Ford range, which means it maintains factory geometry, mounting points, and compatibility with the original cooling system design. As a result, the component works with the factory housing, connectors, and coolant hoses without the need for any modifications to the installation.

The product is assigned to the Thermostats and housings category, which facilitates selection within the entire cooling system – both in terms of connection diameters and the method of integration with other components. Its application in a petrol engine ensures that the opening characteristics are matched to the specifics of a spark-ignition unit.

Component condition and installation aspects

The offered thermostat is a used part, which in practice means an economical way to replace the component while maintaining the original design. Before installation, it is recommended to perform a standard verification of connection tightness, check the contact surface with the housing, and use new seals in accordance with the vehicle manufacturer's recommendations.

During installation, it is worth paying attention to:

• proper bleeding of the cooling system after replacement,
• checking the condition of hoses and clamps in the immediate vicinity of the thermostat,
• verifying the operation of the radiator fan after reaching operating temperature.

Benefits of using an original Ford solution

Using a thermostat designed for a specific Duratec engine in a Transit Connect allows for maintaining engine operating parameters at the level intended by the manufacturer. Factory fitment minimizes the risk of leaks, incorrect valve opening, or incompatibility with the cooling system's operating characteristics.

A properly selected thermostat in a petrol engine supports:

• stable operating temperature across a wide range of loads,
• predictable behavior of the temperature gauge on the dashboard,
• maintenance of appropriate conditions for the operation of engine oil and other operating fluids.

Expanding the cooling system in your Ford

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 additional thermostats, housings, or connection pipes, check out the available parts in the Ford Thermostats and housings category.

Support for interior comfort upgrades

During cooling system maintenance, many users also consider improving cabin ergonomics and travel quality, especially in commercial vehicles used on long routes. If you are interested in how replacing interior equipment can affect the perception of the vehicle and its market value, it is worth reading the article: Interior metamorphosis: how branded seats from dismantling improve comfort and increase the car's value.