BMW E90 E81 E87 E89 E93 325i Cooling Radiator Engine Coolant Radiator 7521048

Visual condition of the part

The product shows signs of use visible in the photos.

BMW E90 E81 E87 E89 E93 325i Cooling Radiator Engine Coolant Radiator is an original cooling system component designed for installation in the front section of BMW vehicles with petrol engines. Thanks to its factory design, it ensures stable heat dissipation from the power unit, which translates into safe engine operation across a wide range of loads. This solution is particularly beneficial for users looking for a proven, used water radiator with preserved geometry and compatibility with factory mounts.

Specifications and technical data

• SKU: 7521048
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7521048
• Substitutable numbers: 7521048, 17117521048, 7559273, 17117559273
• Location on the vehicle: Front
• Fuel type: Petrol
• Category: Radiators

Purpose and compatibility with BMW models

The presented water radiator has been designed for the BMW E90, E81, E87, E89, and E93 series in the 325i version with a petrol engine. The design, adapted for installation in the front part of the body, allows for effective use of the airflow around the car while driving. As a result, the cooling system maintains a stable operating temperature, which is crucial for the durability of the power unit and the preservation of its parameters.

Technical characteristics of the water radiator

The radiator belongs to the Water radiators category, which means it is responsible for heat exchange between the coolant and the air flowing through the core. The applied design of channels and cooling fins has been developed by the manufacturer to ensure the right balance between cooling efficiency and airflow resistance. The component is adapted to work with the petrol engine cooling system, ensuring appropriate operating characteristics under typical operating conditions for 325i units.

The original BMW origin means maintaining factory manufacturing standards, proper placement of connection ports, and compatibility with stock hoses and equipment. Thanks to this, the installation proceeds in an orderly manner, without the need for system modifications or the use of additional adapters.

Application in the petrol engine cooling system

In BMW E90, E81, E87, E89, and E93 series vehicles with a 325i petrol engine, the water radiator plays a key role in maintaining a stable operating temperature of the power unit. A properly selected component:

• ensures even heat dissipation from the coolant,
• works with the fan and other cooling system components,
• reduces the risk of engine overheating in urban conditions and at higher speeds,
• allows for maintaining nominal performance and the smooth operation of the power unit.

For users who operate their car in varied conditions – from daily city driving to longer trips – a properly selected water radiator is an important element of preventive maintenance, reducing the risk of costly failures associated with overheating.

Condition, origin, and benefits of choosing a used BMW radiator

The offered component comes from the group of original BMW parts and is classified as used. Such a choice allows for combining a reasonable purchase cost with the preservation of the factory design and fitment for a specific vehicle generation. A used water radiator is a particularly attractive solution for drivers who want to keep their car in good technical condition while controlling repair budgets.

In practice, this means:

• preservation of original geometry and mounting points,
• compatibility with factory brackets, hoses, and covers,
• no need to adapt the cooling system to aftermarket replacements with a different design.

Technical support and additional materials

To better understand the impact of a functional radiator on engine safety at high temperatures, it is worth checking our guide on cooling system operation during the summer season – a detailed discussion can be found in the article Summer heat vs. cooling system: used radiators and fans as a guarantee of savings. It is a practical source of knowledge on how to consciously select and operate used cooling system components.

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 radiators, coolant hoses, or expansion tanks, check the available parts in the BMW water radiators category.