BMW X3 E83 LCI N52N Engine Cooling Radiator Coolant Water Hose 3415433

The BMW X3 E83 LCI N52N Coolant Hose is an original engine cooling system component, designed for precise coolant flow between the radiator and other components. With factory fitment for the N52N engine in the X3 E83 LCI model, it ensures stable engine thermal operating conditions and reduces the risk of leaks. A used OEM part is a sensible choice for drivers seeking a proven coolant hose at an attractive price.

Specifications and technical data

• SKU: 3415433
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3415433
• Substitutable numbers: 3415433, 17123415433
• Category: Coolant Hoses

Function and Role in the BMW X3 E83 LCI N52N Cooling System

This hose is part of the Cooling System Hoses and Pipes category, responsible for transporting coolant in the circuit between the engine and the radiator. A correctly selected hose:

• maintains system integrity under typical thermal loads for the N52N engine,
• ensures proper coolant flow, supporting stable operating temperature,
• reduces the risk of engine overheating during city and highway driving.

Thanks to its construction conforming to BMW's factory specifications, the hose works with the original radiator, pipes, and clamps, facilitating installation and servicing.

Why Choose an Original BMW Coolant Hose

The original coolant hose for the BMW X3 E83 LCI N52N has been specifically designed for the engine bay geometry of this model. In practice, this means:

• reliable coolant routing without uncontrolled kinks or material stress,
• compatibility with factory mounting points and pipe diameters,
• maintenance of the cooling system's operating characteristics as intended by the manufacturer.

A used OEM part is a good solution when the current hose shows signs of wear, cracking, or delamination, and you wish to maintain the vehicle's original technical specifications.

Condition, Fitment, and Installation Aspects

The offered hose is a used part from disassembly and bears the BMW marking, confirming its factory origin. Its used condition allows for an economical replacement while maintaining proper fitment for the N52N engine's cooling system. The hose is intended for installation in the facelifted (LCI) BMW X3 E83 with this engine, minimizing compatibility issues.

When replacing, it is recommended to inspect other cooling system components – the radiator, expansion tank, clamps, and other hoses – to restore the full efficiency of the coolant circuit in a single service operation.

Engine Thermal Safety and Service Knowledge

A functional coolant hose directly impacts engine thermal safety. Leaks, micro-cracks, or loss of material stiffness can lead to coolant loss and, consequently, engine overheating. To better understand the relationships between hoses, the radiator, and other components, consult the guide: Engine Cooling System – Overheating, Repair, and Used Radiators, which discusses practical aspects of diagnosing and repairing cooling systems in popular models.

If you are planning a comprehensive repair or upgrade of the cooling system area in your BMW and need other parts from the same group, such as additional hoses, return hoses, or connections to the radiator, check the available parts in the BMW Cooling System Hoses and Pipes category.