BMW X3 E83 3.0d M57N2 Coolant Hose Pipe Radiator Water Line 3401058

BMW X3 E83 3.0d M57N2 Coolant Hose Pipe Radiator Water Line is an original cooling system component from the Radiators group, designed for precise coolant routing in the M57N2 diesel engine. This used OEM part ensures factory-spec fitment, stable mounting, and predictable thermal system behavior, which translates into safe and reliable engine operation.

Specifications and technical data

• SKU: 3401058
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3401058
• Substitutable numbers: 11533401058, 3401058
• Category: Radiators

Purpose and function in the cooling system

The coolant hose – water pipe in the BMW X3 E83 3.0d M57N2 is responsible for directing coolant between system components, such as the engine block, the radiator area, and related auxiliary parts. By maintaining factory geometry and flow diameter, this component supports:

• stable maintenance of the engine's operating temperature under various load conditions,
• proper coolant circulation within the engine unit,
• reduction of the risk of localized overheating and cooling efficiency loss.

A properly selected water pipe is crucial during cooling system maintenance, especially in diesel engines where thermal loads are significantly higher.

Original origin and fitment for BMW X3 E83 3.0d M57N2

The element comes from the BMW line, which means it adheres to factory design and assembly standards. The original water pipe ensures:

• compliance with the factory routing of hoses in the X3 E83 3.0d M57N2 engine bay,
• correct mounting points and positioning relative to adjacent components,
• compatibility with the cooling system specified by the vehicle manufacturer.

As a result, installation is predictable, without the need for modifications or adjustments required by aftermarket replacements with uncertain geometry.

Performance characteristics of the used hose

As a used part, the water pipe provides an economical service solution while maintaining the manufacturer's original specifications. This type of cooling system component, when properly maintained, retains its functional properties for a long time, making the choice of a used OEM part a favorable compromise between cost and quality.

The coolant hose from this offer is particularly suitable for situations where the existing component has suffered mechanical damage (cracks, deformations, leaks) or is being replaced preventively during major cooling system service.

Service application and benefits of installation

Installation of the coolant hose – water pipe in the BMW X3 E83 3.0d M57N2 is recommended, among other things, during:

• repairs following engine overheating,
• comprehensive replacement of components from the Radiators group,
• modernization or sealing of the cooling system after years of operation.

Using an original component helps maintain the integrity of the entire system, which facilitates diagnostics, service, and subsequent vehicle operation. This solution is particularly beneficial for users who want to keep the construction consistent with the manufacturer's design, without experimenting with unverified replacements.

Cooling system service expansion and additional materials

If you are planning a comprehensive repair or modernization of the engine area in your BMW and need other elements from the same group, such as hoses, connectors, or additional water pipes, check out the available parts in the BMW Radiators category.

For better planning of service work during the high-temperature season, it is worth checking out practical tips regarding cooling system operation – detailed information can be found in the article Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, which discusses the impact of summer conditions on cooling efficiency and the possibilities for cost-effective repairs using used components.