BMW F70 F74 F78 Mini F66 F67 Engine Water Coolant Radiator B48P B48R 5A50153

BMW / Mini Engine Water Radiator for B48P and B48R units is an original cooling system component designed for BMW F70, F74, F78 models and Mini F66 and F67 with gasoline engines. Thanks to its factory design, it ensures stable heat dissipation from the engine unit, which translates into safe engine operation and reduced risk of overheating. This is a solution for users looking for a proven part, compliant with factory specifications, instead of random replacements.

Specifications and technical data

• SKU: 5A50153
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 5A50153
• Substitutable numbers: 5A50153, 17115A50153
• Fuel type: Petrol
• Part type: Radiator
• Category: Radiators

Purpose and Compatibility with Gasoline Engines

The presented water radiator has been designed to work with B48P and B48R series gasoline engines used in BMW F70, F74, F78 and Mini F66 and F67 models. The cooling system design in these units requires a properly selected heat exchanger that ensures efficient maintenance of optimal operating temperature across the entire load range – from city driving to long-term highway use.

By maintaining factory coolant flow parameters and heat exchange surface area, the radiator works with the stock fluid pump, thermostat, and hoses, which facilitates installation and subsequent service maintenance.

Construction and Role in the Cooling System

The water radiator in this application plays a key role in protecting the engine from overheating, maintaining a stable operating temperature during dynamic driving and under high thermal load conditions. The appropriately designed core and flow channel system allow for efficient heat transfer to the airflow, both with natural flow and with fan assistance.

The factory geometry of the connection spigots facilitates correct connection to the existing system, minimizing the risk of leaks. The use of an original water radiator also reduces the risk of improper fit, which often occurs with cheaper, simplified design replacements.

Benefits of Using an Original Water Radiator

Choosing an original water radiator for BMW F70, F74, F78 and Mini F66, F67 with a gasoline engine offers a number of practical benefits:

• maintaining the factory cooling characteristics of the B48P / B48R engine,
• better operating temperature stability compared to random replacements,
• reduced risk of engine unit overheating under heavy load,
• easier installation due to compatibility with stock mounts and hoses,
• consistency with other cooling system components.

For users who want to keep their car in a configuration as close to factory as possible, using an original water radiator is a technically safe and predictable solution in terms of operation.

Condition, Verification, and Application in Repairs

The offered water radiator is a used part, which in practice means an attractive compromise between repair cost and maintaining original manufacturing quality. This type of component is ideal for accident repairs, replacement after mechanical damage, or when experiencing signs of reduced cooling performance, where a quick and technically correct part replacement is necessary.

Before installation, the standard service procedure is recommended: checking the system for leaks, replacing the coolant with fresh fluid, and bleeding the system according to the manufacturer's procedure. This allows for full utilization of the cooling system efficiency and reduces the risk of further service interventions.

More About BMW Water Radiators

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as additional heat exchangers, coolant hoses, or expansion tanks, check the available parts in the BMW Water Radiators category.

To better understand the symptoms of engine unit overheating and the impact of radiator condition on engine lifespan, it is worth reading the guide: Engine Cooling System – Overheating, Repair, and Used Radiators. This will help you better assess when a water radiator replacement is necessary and how to choose the right part for your car.