BMW E81 E87N E90 E91 Cooling Coolant Radiator Water Hose Pipe 9124076

BMW E81 E87N E90 E91 Cooling Coolant Radiator Water Hose Pipe is an original BMW cooling system component, designed for precise coolant routing within the engine bay. The hose construction is engineered for stable operation under demanding temperature conditions, which helps maintain the proper engine operating temperature and reduces the risk of leaks.

Specifications and technical data

• SKU: 9124076
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9124076
• Substitutable numbers: 64219124076, 9124076, 64214200856, 4200856
• Category: Hoses, Lines & Pipes

Purpose and function of the BMW water hose

The offered hose belongs to a group of cooling system components responsible for transporting coolant between individual engine parts and accessories. A properly shaped water pipe helps maintain stable medium flow, minimizing turbulence and pressure drops, which translates into efficient heat dissipation.

The component is dedicated for use in selected BMW series models, including compact bodies and sedans, where proper fitment of the hose geometry to the mounting system and connectors is essential. This ensures that installation is straightforward, without the need for interference with other sub-assemblies.

Construction and operational properties

The water hose belongs to the Hoses, pipes and tubes category, meaning it has been designed to withstand variable thermal and pressure loads. The carefully selected material of the hose ensures:

• resistance to elevated coolant temperatures,
• shape stability during long-term operation,
• reduced risk of cracks and leaks at the bends.

The hose geometry is matched to the factory routing in the engine bay, which facilitates correct positioning relative to other elements, such as housings, clamps, or mounting brackets. This solution promotes service clarity and facilitates potential future work on the cooling system.

Benefits of using an original BMW hose

Using an original BMW water hose instead of a worn-out part allows for the restoration of factory coolant flow parameters. Key advantages include:

• secure fitment to connectors and mounts in the specific BMW model,
• maintenance of the manufacturer-designed hose routing path,
• reduced risk of collision with other components in the engine bay,
• consistency with other cooling system elements from the same brand.

As a result, the hose replacement is predictable in terms of time and scope of work, and the cooling system can operate under conditions close to factory specifications after service.

Condition and service application

The offered item is in Used condition, meaning it comes from disassembly but can still perform its function in the cooling system after proper installation and leak verification. This type of part is a good solution in situations where the priority is to reduce repair costs while maintaining the original manufacturer specification.

The water hose is suitable both for standard replacement of a worn-out element and for broader service work related to the cooling system, such as replacing the radiator, thermostat, or other coolant hoses.

Expanding the BMW cooling system – related components

If you are planning a comprehensive repair or upgrade of the cooling system area in your BMW and need other items from the same group, such as flexible coolant hoses, rigid water pipes, or additional return lines, check the available parts in the BMW Hoses, pipes and tubes category.

If you want to better plan your vehicle service budget and are interested in how to optimally combine original components with reasonable repair costs, the following guide article may be helpful: Economical operation of a Ford – where to look for the greatest savings in mechanical and body repairs.