BMW E81 E87 E90 E91 Engine Cooling Coolant Radiator 7542199

BMW E81 E87 E90 E91 Engine Cooling Coolant Radiator is a cooling system component designed for installation in the front of the vehicle, responsible for stabilizing the engine's operating temperature. As part of the Water radiators group, it ensures efficient heat dissipation from the coolant, which translates into safe and predictable vehicle operation. This used original BMW component is a sensible choice for drivers looking for a technically matched solution at an attractive price.

Specifications and technical data

• SKU: 7542199
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7542199
• Substitutable numbers: 17117562079, 7562079, 7542199, 17117542199, PK
• Location on the vehicle: Front
• Category: Radiators

Function and role of the radiator in BMW E8x/E9x series

The radiator in BMW E81, E87, E90, and E91 series models is responsible for effectively transferring heat from the cooling system to the surroundings. The coolant flowing through it transfers excess thermal energy to the air flowing over the radiator core, which allows the engine to maintain a stable temperature under various load and speed conditions.

A functional component of this type reduces the risk of engine overheating, power loss, and premature wear of components such as gaskets, the cylinder head, or the turbocharger. A properly selected water radiator is therefore an essential element in preventing costly repairs.

Construction and placement on the vehicle

The presented radiator is designed for installation in the front part of the vehicle, in a zone of intensive airflow. This placement promotes effective cooling, especially when driving at higher speeds, when the airflow through the core is at its greatest.

The construction typical of BMW water radiators includes flow channels for the coolant and a dense network of fins that increase the heat exchange surface. This makes it possible to maintain stable thermal parameters even during dynamic driving and high engine loads.

Benefits of using an original BMW radiator

Using an original radiator dedicated to specific BMW E8x/E9x series models ensures:

• Proper mounting fit – compatibility with factory mounting points and hose routing.
• Operating parameters adjusted to the characteristics of the engines used in these models.
• Consistency with other cooling system elements, such as hoses, the thermostat, or the coolant pump.
• Reduced risk of bleeding issues and leaks resulting from mismatched aftermarket replacements.

For the user, this means a stable engine operating temperature, predictable behavior in traffic jams and during highway driving, and a lower risk of failures related to overheating.

Used condition and practical aspects

The offered radiator is a used component, which allows for lower repair costs while maintaining the manufacturer's original specifications. This solution is particularly beneficial during comprehensive service work, when other cooling system elements are being replaced simultaneously or when the existing radiator has suffered mechanical damage.

Before installation, a standard service procedure is recommended: checking the system for leaks, replacing the coolant with fresh fluid, and thorough bleeding. This approach increases the durability of the entire system and allows you to fully utilize the potential of the installed water radiator.

Technical support and educational materials

If you want to better understand how to properly diagnose overheating problems and when replacing a radiator is justified, check out our guide: Engine cooling system – overheating, repair, and used radiators. You will find practical tips on the operation and maintenance of cooling systems in popular models.

Additionally, if you are interested in a broader perspective on selecting used original parts for popular brands, the following guide will be helpful: Best used car parts – a guide to the most frequently chosen original parts, which will help you make informed purchasing decisions.

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 radiators, mounting elements, or related cooling system components, check the available parts in the BMW water radiators category.