Hose Heat Exchanger BMW E81 E87 E90 E91 Transfer Oil Pipe 7526941

Hose Heat Exchanger BMW E81 E87 E90 E91 Transfer Oil Pipe is an original cooling system component from the Lines, hoses and pipes category, designed for installation on the left side of the vehicle. Thanks to its factory geometry and precise fit for the specific BMW platform, it ensures stable coolant flow and proper integration with other system components. This is a practical solution for users looking for a proven, used component with maintained functionality.

Specifications and technical data

• SKU: 7526941
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7526941
• Substitutable numbers: 11537526941, 7526941, 11534547299, 4547299
• Location on the vehicle: Left
• Category: Hoses, Lines & Pipes

Application and function in the cooling system

The described water pipe operates within the coolant circuit, responsible for directing the flow between system components. A correctly selected water hose reduces the risk of localized overheating, leaks, and pressure drops, which translates into stable engine operating temperatures and safe driving conditions.

Placement on the left side of the vehicle allows for precise alignment with factory mounts, brackets, and connectors, without the need for modifications or makeshift workarounds. This is particularly important in BMW vehicles, where the cooling system is tightly integrated with other engine bay components.

Compatibility and identification parameters

The pipe has been designed for specific BMW E81, E87, E90, and E91 series models, which facilitates part selection based on body construction and engine bay layout. The original OEM part number and available replacement numbers allow for unambiguous identification of the component in service catalogs and parts selection systems, minimizing the risk of ordering errors.

Additionally, the product has a dedicated stock keeping unit (SKU), which streamlines logistics and speeds up the order fulfillment process in the online store. As a result, the user receives exactly the element that is compatible with their vehicle configuration.

Product characteristics and advantages

As an element from the Lines, hoses and pipes category, this water hose has been developed with resistance to coolant operating temperatures and typical mechanical loads found in the engine bay in mind. The appropriately selected cross-section and shape of the pipe promote proper flow, which is important both during calm driving and under higher engine load conditions.

The used nature of the part allows for an economical restoration of cooling system efficiency without the need to invest in a new component, while maintaining original geometry and installation compatibility. This is a beneficial solution for users who want to keep their car in good technical condition while controlling service costs.

Condition, installation, and practical tips

The item is offered as a used part, which in practice means it has already been in service in a vehicle but can still perform its function after proper installation. Before installation, a standard visual inspection for any signs of wear and tear is recommended, as well as verifying the fitment to the connectors and brackets in the specific BMW model.

Installation of the pipe on the left side of the vehicle should be carried out in accordance with the manufacturer's service procedures, maintaining the correct sequence for bleeding the cooling system. A properly installed water hose reduces the risk of leaks and ensures stable engine operation across the full temperature range.

Cooling system expansion and technical knowledge

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

For users interested in the broader context of how modern exhaust emission reduction systems work and the impact of engine components on powertrain performance, an article describing the operating principle of exhaust gas recirculation valves may be helpful. More information can be found in the material: EGR: what it is and why it is worth considering used EGR valves.