BMW E81 E87 E90 E91 Petrol N43 Complete Set Radiator Fan Automatic

BMW E81 E87 E90 E91 Petrol N43 Complete Set Radiator Fan Automatic is an original cooling system component designed for installation in the front section of BMW vehicles with an N43 petrol engine and automatic transmission. Integrating the radiator with the fan ensures stable heat dissipation and efficient operation of the powertrain under various road conditions. This solution allows for precise fitting to the factory mounts and installation in the specific model.

Specifications and technical data

• SKU: 7563259-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 17427563259
• Substitutable numbers: 17427563259, 7563259, 17427523258, 7523258, 64539229022, 9229022, 64539206297, 9206297, 64509169772, 9169772, 64536930038, 6930038, 7581642, 7561711, 17117559273, 7559273, 17117521048, 7521048, 6925693, 17217529499, 7529499, 17425A3F103, 4253103
• Location on the vehicle: Front
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Caps

Purpose and compatibility for BMW with N43 engine

The presented radiator and fan set has been designed for BMW E81, E87, and E90 series vehicles equipped with the N43 petrol engine. The structure, intended for front-of-vehicle mounting, works in conjunction with the automatic transmission system, which is crucial for maintaining the proper thermal balance of the entire powertrain. By using a solution consistent with factory BMW standards, this component allows for maintaining the correct operating characteristics of the cooling system without the need for installation modifications.

Construction and function of the cooling system

Combining the liquid radiator with the fan creates a complete module responsible for maintaining the optimal engine operating temperature. The structure of the radiator core and the fan shroud is prepared for efficient airflow in the front zone, which promotes temperature stabilization during both city driving and highway conditions. The use of a dedicated fan allows for controlled cooling assistance in situations of increased engine load.

Benefits of using an original BMW component

Choosing an original radiator and fan module for a BMW with an N43 engine translates into a number of practical benefits:

• maintaining the factory operating characteristics of the cooling system,
• secure fit to the mounts and covers in the front part of the body,
• proper cooperation with the engine control system and automatic transmission,
• reducing the risk of engine overheating in demanding conditions.

Thanks to this solution, it is possible to systematically restore the efficiency of the cooling system after a failure or as part of preventive replacement of wear-and-tear components.

Installation and operational characteristics

The placement of the module in the front part of the vehicle facilitates service access and visual inspection of the radiator and fan. The design, intended for use with a petrol engine and automatic transmission, allows for maintaining proper airflow and coolant flow throughout the system. The used OEM component represents a reasonable compromise between repair costs and maintaining the vehicle's original technical specifications, which is particularly important in premium class cars.

System expansion and part number compatibility

The radiator and fan module has an assigned OEM part number and associated interchangeable numbers, which facilitates verification of compatibility with a specific BMW E81, E87, and E90 series configuration. This allows for precise selection of the component for the existing cooling system, minimizing the risk of incorrect fitment. In the case of expansion or modernization of the system, it is also worth considering the condition of other components, such as hoses or air guide shrouds for the radiator.

If you are planning a comprehensive repair or modernization of the front body area in your BMW and need other components from the same group, such as covers, overlays, or additional trim panels, check the available parts in the BMW Overlays category.

To better plan your investment in original components for premium class cars and understand current market trends, it is worth reading the article Crisis in the new parts market? Why in 2026 used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend, which discusses the advantages of using used OEM components in modern vehicles.