Thermostat BMW E60 E61 E63 E65 E81 E87 E90 E91 E93 Water Pump 7549476

Thermostat BMW E60 E61 E63 E65 E81 E87 E90 E91 E93 Water Pump is an original component from the Thermostats and housings group, designed for precise control of the coolant circulation in BMW engines. It enables the maintenance of a stable operating temperature for the power unit, which translates into predictable cooling system performance and reduces the risk of overheating.

Specifications and technical data

• SKU: 7549476-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7549476
• Substitutable numbers: 11537549476, 7549476, 11537544788, 7544788, 11537536655, 7536655
• Category: Thermostats & Housings

Purpose and function in the cooling system

The presented water pump thermostat is an OEM component designed specifically for selected models of the BMW E60, E61, E63, E65, E81, E87, E90, E91, and E93 series. Its task is to control the flow of coolant between the engine block and the radiator, so that the engine reaches its operating temperature as quickly as possible and then maintains it within a stable range during city and highway driving.

Thanks to its factory design tailored to specific generations of BMW power units, the thermostat works with the original water pump and other cooling system components, ensuring consistency of operating parameters and compliance with the manufacturer's specifications.

Construction and fitment for BMW

The thermostat has been developed as an original BMW part, which means it maintains the correct geometry, mounting points, and opening characteristics. This solution facilitates installation in place of the factory component, without the need for installation modifications or the use of additional adapters. The construction is prepared for operation in demanding temperature and pressure conditions typical of modern BMW engines.

Proper fitment to the water pump housing and cooling system hoses reduces the risk of leaks, and maintaining the original specification allows for the correct circulation of coolant, which is important both for engine durability and for the operation of related systems, such as interior heating.

Condition, verification, and service application

The item is offered as a used part, making it an attractive option for budget-friendly repairs or servicing of older BMW models, where reasonable maintenance costs are important while maintaining the original specification. This type of component can be used both when replacing a damaged thermostat and during major work on the cooling system, e.g., when replacing the water pump or coolant.

Due to its factory origin, the thermostat is particularly recommended for users who want to maintain consistency with the original vehicle configuration, avoiding the accidental selection of replacements with uncertain opening characteristics and build quality.

Benefits of using an original BMW thermostat

• Consistency with the manufacturer's design – maintaining factory cooling system operating parameters.
• Better mounting fitment compared to random replacements.
• Possibility of economical repair while using OEM parts.
• Support for a stable engine operating temperature, which promotes its durability.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as thermostat housings, connectors, or additional flow control modules, check the available parts in the BMW Thermostats and housings category.

Additional information and technical knowledge

For users interested in a broader context of component selection for more demanding BMW versions, including M and M Performance variants, material describing the differences between standard and sports components, including the impact of the cooling system on the durability of the engine and accessories, may be helpful. You can find more on this topic in the article BMW M Performance: how do BMW M components differ from standard ones?.