BMW E87 E60 LCI E81 E82 E88 E90 E91 Thermostat Housing 7805191

BMW E87 E60 LCI E81 E82 E88 E90 E91 Thermostat Housing is an original component from the Thermostats and housings group, designed for the cooling system in selected BMW 1, 3, and 5 series models after the facelift. This used OEM part ensures factory-fit, stable thermostat mounting, and proper coolant flow within the engine.

Specifications and technical data

• SKU: 7805191
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7805191
• Substitutable numbers: 11517805191, 7805191
• Category: Thermostats & Housings

Purpose and function in the cooling system

The thermostat housing in BMW E87, E60 LCI, E81, E82, E88, E90, and E91 models is responsible for the precise seating of the thermostat and a leak-proof connection to the cooling system channels. A properly selected housing helps maintain a stable operating temperature for the engine unit, which translates into engine efficiency and reduces the risk of overheating.

As an OEM BMW component, the housing is structurally matched to factory ports, hoses, and mounts, which facilitates installation and minimizes the risk of leaks after replacement.

Construction and technical features

The thermostat housing has been designed as a rigid, temperature and pressure-resistant cooling system component. The design provides appropriately shaped flow channels and mounting points to:

• ensure a tight seating of the thermostat in the body,
• maintain the correct direction of coolant flow,
• preserve compatibility with factory hoses and connectors,
• reduce mechanical stress at the contact point with the engine block.

Thanks to the preservation of the original geometry, the housing works with the stock cooling system without the need to modify other components.

Benefits of using an original thermostat housing

Using an original thermostat housing in BMW E87, E60 LCI, E81, E82, E88, E90, and E91 series allows you to maintain the operating parameters specified by the manufacturer. Key advantages include:

• Factory fit – compatibility with the cooling system and mounting points in a given BMW model.
• Stable thermostat operation – proper positioning of the element regulating fluid flow.
• Reduced risk of leaks – matched mating surfaces and seals provided by the manufacturer.
• Consistency with other OEM elements – no need for hose modifications or additional adapters.

A used OEM part is a good solution for cooling system service when you want to maintain the original design and compatibility with factory components.

Condition and service application

The thermostat housing comes from disassembly and is offered as a used part, which allows for an economical repair of the cooling system while maintaining the original BMW specification. This type of component is particularly useful when replacing a damaged, cracked, or leaking housing, when it is necessary to restore proper coolant circulation.

Thanks to the preservation of the factory design, the installation proceeds in a manner similar to the manufacturer's service procedures, which facilitates work for mechanics and reduces vehicle downtime.

Expanding the BMW cooling system

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 housings, bodies, or modules related to temperature regulation, check out the available parts in the BMW Thermostats and housings category.

When planning major service work on the engine unit, it is also worth paying attention to the condition of other components cooperating with the cooling system. For a broader perspective on selecting aftermarket elements, the guide on purchasing used powertrain components may be helpful – you can find it in the article How to buy a used car engine and not get scammed – a step-by-step guide, which discusses practical criteria for assessing the technical condition of used parts.