Vauxhall Insignia A 2.0 CDTI Thermostat Valve Thermostat Housing 55573003

Vauxhall Insignia A 2.0 CDTI Thermostat Valve Thermostat Housing is a component from the Thermostats and housings group, designed for the cooling system of a diesel engine. It enables stable maintenance of the engine's operating temperature, which translates into proper diesel engine performance and reduced wear of components. This used Vauxhall brand component provides a functional service solution for vehicles with this type of engine.

Specifications and technical data

• SKU: 55573003
• Mark: Vauxhall (Genuine OE)
• Condition: Used
• OEM Part Number: 55567595
• Substitutable numbers: 55567595
• Fuel type: Diesel
• Category: Thermostats & Housings

Purpose and function in the cooling system

The presented thermostat housing is dedicated to a compression-ignition engine, which means full compatibility with the requirements of Diesel units in terms of thermal characteristics. The task of the thermostat in this configuration is to control the flow of coolant between the engine block and the radiator, allowing for quick attainment of operating temperature and its stable maintenance while driving.

A properly functioning thermostat with housing contributes to:

• maintaining the optimal operating temperature of the diesel engine,
• reducing the risk of engine overheating or undercooling,
• stability of combustion parameters in the diesel engine,
• more predictable cooling system behavior under various load conditions.

Technical characteristics and fitment

The thermostat housing in this model has been designed as a component structurally matched to the 2.0 CDTI unit, with appropriately shaped connectors and mounting points. This allows for precise seating in the cooling system without the need for installation modifications. Using a solution consistent with factory specifications facilitates assembly and allows for maintaining the original coolant flow geometry.

The product belongs to the Thermostats and housings group, meaning it has been designed for operation in direct contact with coolant and variable temperature conditions. The construction is intended for use with a diesel engine cooling system, where both resistance to temperature fluctuations and connection tightness are essential.

Product condition and service application

The item is offered as a used part, making it an attractive solution for maintenance repairs where functionality and structural compatibility are the priority. This type of component is suitable for:

• replacing a damaged or leaking thermostat housing,
• servicing the cooling system after an overheating failure,
• preventive replacement of engine temperature control components.

Using an original thermostat housing in a diesel engine helps maintain predictable cooling system operating parameters, which is particularly important in units with higher thermal loads, such as the 2.0 CDTI.

Benefits of using the thermostat housing in a diesel engine

In diesel engines, a stable operating temperature has a direct impact on engine refinement, fuel consumption, and component durability. Using a properly selected thermostat housing allows you to:

• maintain proper coolant circulation across the entire load range,
• reduce the risk of localized overheating within the cylinder head and engine block,
• ensure more repeatable operating conditions for the injection system,
• limit the adverse effects of an engine operating at too low a temperature.

For users of vehicles with a 2.0 CDTI engine, choosing a thermostat housing from this product group is a practical service solution that allows for restoring proper cooling system operation without interfering with other components.

Cooling system expansion for the Vauxhall brand

If you are planning a comprehensive repair or upgrade of the engine area in your Vauxhall and need other elements from the same group, such as additional housings, bodies, or thermostat assemblies, check out the available parts in the Vauxhall Thermostats and housings category.