BMW X3 SERIES E83 Water Engine Radiator Return Hose Pipe 3413819

BMW X3 SERIES E83 Water Engine Radiator Return Hose Pipe is an original cooling system component from the Lines, hoses and pipes group, designed for use in the BMW X3 E83 model. This used OEM component allows for maintaining factory coolant flow characteristics, which promotes stable engine operation and reduces the risk of overheating. It is a practical solution for users looking for parts with proven geometry and fitment for the factory system.

Specifications and technical data

• SKU: 3413819
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 17123413819
• Substitutable numbers: 17123413819, 3413819, 11530360161 11533400209, 0360161, 3400209
• Category: Hoses, Lines & Pipes

Purpose and function in the cooling system

The presented water pipe is responsible for directing coolant between the cooling system components in the BMW X3 E83. A properly selected hose ensures:

• stable flow of the cooling medium in the intended direction,
• maintenance of the correct operating temperature of the power unit,
• reduction of local stress thanks to the matched length and shape,
• compatibility with factory ports and connectors in the given model.

By maintaining the original geometry of the pipe, the risk of leaks resulting from improper positioning or excessive twisting of the hose in the engine bay is minimized.

Benefits of using an original BMW pipe

Choosing a component sourced from BMW allows you to maintain the integrity of the entire cooling system. Factory-matched diameters and outlet angles translate into easier installation and less stress on the ports on the radiator, thermostat, or engine housing. A used OEM water pipe also means:

• preservation of the original rigidity and flexibility intended by the manufacturer,
• reduction of the risk of collision with other components in the engine bay,
• consistency with the factory mounting system and brackets.

Such a solution is particularly beneficial for repairs where parameter repeatability and compliance with service documentation are important.

Component condition and installation aspects

The pipe is offered as a used part, which allows for an economical repair while maintaining the original manufacturer's specifications. Before installation, a standard visual inspection for any signs of wear is recommended to adapt the installation method to the current state of the vehicle's cooling system.

During installation, it is worth paying attention to:

• correct positioning of the pipe relative to the factory routings,
• selection of appropriate clamps compatible with the BMW cooling system,
• bleeding the system after refilling with fresh coolant.

This approach promotes maintaining the tightness and stable operation of the entire system.

Use of OEM and interchangeable numbers

The component belongs to a group of parts identified by a dedicated OEM number and related interchangeable numbers. Selecting a pipe by part number facilitates verification of compatibility with a specific engine version and model year of the BMW X3 E83, which is particularly important given the structural differences between individual variants. In practice, this reduces the risk of purchasing an incompatible pipe and speeds up the service process.

Expanding the BMW cooling system – category 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 return hoses, or rigid fluid-carrying tubes, check out the available parts in the BMW Lines, hoses and pipes category.

For users interested in a broader context of using used parts in cars, including the principles of selection by OEM numbers and practical installation tips, the Global Parts guide may be helpful: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?. Although it mainly concerns electronics, the approach to verifying compatibility and quality described there can be successfully applied to other component groups as well.