Cooling Water Pump BMW E46 E60 E61 E87 E90 E91 Mechanical Coolant 7805808

BMW X3 E46 E60 E61 E87 E90 E91 Cooling Water Pump 7805808 is an original cooling system component from the BMW group, designed for use in popular models of the X3 series, as well as the 3 and 5 series. The pump's design ensures stable coolant circulation, which translates to safe engine operation under various operating conditions.

Specifications and technical data

• SKU: 7805808
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 11517790471
• Substitutable numbers: 1151780580811517791833, 11517790471, 1151779032211517788305, 78058087791833779047177903227788305, 7790275, 7792333, 4090780, 7790471, 11517805808, 7805808, 11517791833, 7791833, 11517790322, 7790322, 11517788305, 7788305
• Category: Water Pumps

Technical characteristics of the BMW water pump

The presented pump belongs to the Water Pumps category and is a factory solution used in the BMW engine cooling system. It has been designed to maintain the correct pressure and flow rate of the coolant, which reduces the risk of engine overheating and uneven temperature distribution.

The original design of the housing and impeller is adapted to the specific requirements of engines used in BMW models X3, E46, E60, E61, E87, E90, and E91. This ensures that the pump works correctly with the factory thermostat, hoses, and radiator, maintaining the parameters specified by the vehicle manufacturer.

Compatibility and selection by BMW numbers

The cooling water pump has been developed as an OEM component, meaning its geometry, mounting points, and sealing method correspond to BMW's factory requirements. This facilitates part selection based on the OEM number and available replacement numbers, as well as verification of compatibility with specific engine versions and vehicle model years.

Thanks to this solution, it is possible to:

• precisely fit the pump to a specific BMW model without any modifications,
• maintain the correct tension of the accessory belt and alignment of the pulleys,
• reduce the risk of leaks in the cooling system after replacement.

Function in the cooling system and benefits of replacement

A functional water pump is responsible for the continuous circulation of coolant between the engine block, cylinder head, heater core, and radiator. In case of pump wear, symptoms such as increased operating temperature, reduced interior heating performance, or fluid leaks may occur. Using a properly selected BMW pump allows for the restoration of correct cooling system operating parameters.

The main advantages of installing this pump include:

• maintaining stable engine operating temperature in urban and highway conditions,
• better protection against overheating under high engine load,
• compatibility with factory temperature sensors and engine control strategy.

Condition, origin, and practical application

The offered BMW water pump comes from the original production line, which helps maintain factory cooling system operating parameters. This is a used component, allowing for an economical restoration of vehicle functionality while maintaining compatibility with manufacturer solutions. This type of pump is suitable as a replacement for everyday cars as well as fleet vehicles where predictable operation and consistent parameters are important.

Before installation, standard service procedures are recommended: check the condition of the accessory belt, idler pulleys, thermostat, and the tightness of the cooling hoses. A correctly performed water pump replacement, combined with bleeding the system, minimizes the risk of air pockets and uneven cooling.

More BMW water pumps and technical knowledge

If you are looking for other BMW Water Pumps compatible with various models of this brand, check out the BMW water pumps available in our store, where you will find a wide selection of cooling system components.

The selection and operation of engine fuel supply and cooling components often go hand in hand with the diagnosis of other sub-assemblies. It is worth familiarizing yourself with the guide on the fuel system – its construction, repair, and part selection by OEM numbers, available here: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair.

If you are considering whether new or used parts would be a better choice for your needs, an article comparing both solutions in terms of cost and durability may be helpful: Car Parts – New or Used? Comparing Costs, Quality, and Durability.