BMW 1 3 Series E81 E87 E90 E91 N43 Complete Set Radiator Fan Housing With Fan

BMW 1 3 Series E81 E87 E90 E91 N43 Complete Set Radiator Fan Housing With Fan is an original cooling system component designed for BMW 1 and 3 Series models with N43 engines and manual transmissions. This product from the Covers category ensures stable heat dissipation from the engine bay, which translates into safe operation of the powertrain in various road conditions. Thanks to its factory OEM design, it is a solution technically matched to the vehicle's architecture, facilitating installation and subsequent operation.

Specifications and technical data

• SKU: 7563259-3
• 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, 17425A3F103, 4253103
• Category: Caps

Purpose and function in the BMW cooling system

The presented radiator with fan has been designed to maintain a stable operating temperature for the N43 engine in BMW E81 and E90 318i versions with manual transmission. This assembly is responsible for efficient heat dissipation from the coolant and forced airflow through the radiator core, which is particularly important in city traffic and during longer stops.

Thanks to the factory fitment for a specific drivetrain configuration, the cooling system maintains the correct airflow and fluid characteristics, which reduces the risk of overheating and supports smooth engine operation across the full load range.

Construction and fitment for BMW E81 / E90 318i N43

The radiator with fan in this configuration is structurally adapted to the geometry of the engine bay in the BMW E81 and E90, taking into account specific cable routing, mounts, and working space for accessories. The fan assembly works with the vehicle's control system, ensuring appropriately selected cooling intensity depending on driving conditions.

Such fitment translates into:

• correct positioning relative to the radiator and other cooling system components,
• maintaining the proper direction and efficiency of airflow,
• reduction of unwanted vibrations thanks to factory mounting points.

Benefits of using an original BMW component

Using an original BMW solution in the engine cooling area ensures consistency with the vehicle's factory specifications. Precise fitment minimizes the risk of leaks, collisions with other components, and installation problems. This is particularly important for the N43 unit, where a stable operating temperature has a direct impact on the durability of mechanical components and driving comfort.

Key advantages include, among others:

• maintaining factory cooling parameters for manual transmissions,
• consistency with the original fan control system,
• easier diagnostics and service due to compliance with manufacturer documentation.

Characteristics of the used product

The offered item is in used condition, which represents a reasonable compromise between cost and functionality, especially for maintenance repairs of older BMW E81 and E90 models. Choosing such a solution allows you to restore the efficiency of the cooling system without the need to invest in a new component, while maintaining the original OEM design.

Before installation, it is recommended to perform standard verification of tightness, the condition of connectors, and the correct operation of the fan to ensure trouble-free operation after replacement.

Installation and maintenance recommendations

When replacing the radiator with the fan, it is worth paying attention to the condition of hoses, clamps, sensors, and the quality of fresh coolant. Proper system bleeding after installation is crucial to avoid local overheating and improper engine operation. In the case of the BMW 318i with the N43 engine, it is particularly important to maintain compliance with the manufacturer's service procedures.

Regular monitoring of the operating temperature and observing the fan's operation after replacement allows for quick detection of any irregularities and keeps the cooling system in a stable state for a long time.

If you are planning a comprehensive repair or upgrade of the body area in your BMW and need other elements from the same group, such as covers, overlays, or additional trim strips, check the available parts in the BMW Covers category.

If you are considering a wider use of aftermarket components, including control system elements or additional equipment, you will find useful tips on selection and safe use in the article The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.