BMW E39 E46 E53 E60 E61 E65 E66 E83 E85 Mechanical Coolant Water Pump 1731741

BMW E39 E46 E53 E60 E61 E65 E66 E83 E85 Mechanical Coolant Water Pump is an original component from the Water pumps group, designed for the engine cooling system in selected BMW models. Thanks to its factory OEM design, it ensures proper coolant circulation, stabilizing the engine's operating temperature and supporting safe vehicle operation.

Specifications and technical data

• SKU: 1731741
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 1731741
• Substitutable numbers: 11517509985, 7509985, 11517527910, 7527910, 11517503884, 7503884, 1731741
• Category: Water Pumps

Purpose and function in the cooling system

The water pump in BMW E53 X5, E60, and E83 X3 models is responsible for the forced circulation of coolant between the engine block, cylinder head, and radiator. A properly functioning pump reduces the risk of overheating, local hot spots, and accelerated wear of engine components. Using an original pump from the BMW OE group allows for maintaining the flow and pressure parameters specified by the manufacturer.

OEM construction and compatibility

The presented water pump is an OEM part with the BMW OE designation, which means full compatibility with factory engine equipment, proper positioning on the block, and compatibility with original hoses and mounts. The design intended for specific engine units in the BMW E53 X5, E60, and E83 X3 facilitates installation without the need for modifications or the use of additional adapters.

The component has a dedicated OEM part number and assigned replacement numbers, which allows for precise verification of compatibility by VIN or part number. This makes it possible to safely select the pump for a specific engine version, minimizing the risk of incorrect fitment.

Condition, origin, and advantages of choosing a used OEM part

The water pump comes from disassembly and is offered as a used original BMW part. In practice, this means factory-grade material quality, proper fitment with engine equipment, and operating parameters consistent with the manufacturer's specifications. Compared to cheap replacements, a used OEM pump often provides more stable operation and better durability while maintaining an attractive repair cost level.

Choosing an original water pump from the Water pumps category is a sensible solution for cooling system repairs in a BMW, especially when you want to maintain the factory engine operating characteristics and avoid problems with leaks or improper fluid flow.

Selection by OEM number and technical support

Due to the variety of engine versions in the BMW E53 X5, E60, and E83 X3, it is crucial to match the water pump by OEM number or replacement numbers. The product has assigned identifiers that can be verified in BMW catalogs or by comparing it with the currently installed part. In case of doubt, it is worth using diagnostics and online catalogs to confirm compatibility before installation.

For users who want to deepen their knowledge about selecting fuel system components and engine accessories by OEM numbers, as well as diagnostic principles, the following blog article will be helpful: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. Although it mainly concerns the fuel system, it discusses universal principles of working with OEM numbers, diagnostics, and component regeneration.

Integration with other BMW cooling system components

Replacing the water pump in a BMW E53 X5, E60, or E83 X3 is often combined with checking the condition of the thermostat, hoses, radiator, and coolant. A properly selected pump works in harmony with these elements, ensuring a stable operating temperature and reducing the risk of head gasket failure or cylinder head deformation. When planning service work, it is worth considering a comprehensive assessment of the entire cooling system to avoid re-disassembly in the near future.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as additional pumps, housings, or mounting elements, check the available parts in the BMW Water pumps category.