BMW 1 3 Series E81 E87N E90 Petrol N43 Oil Gearbox Cooling Pipe Inlet 7566044

BMW E81 E87N E90 N43 Oil Line Pipe 7566044 is a component from the Cooling System Hoses and Pipes category, designed for BMW E-series gasoline engines with the N43 unit. It is responsible for precise oil routing within the cooling and lubrication system, which directly impacts stable operating temperature and engine durability. A used OEM component is a sensible choice for drivers seeking a technically matched solution at an attractive price.

Specifications and technical data

• SKU: 7566044-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7604779
• Substitutable numbers: 17227604779, 7604779, 17227566044, 7566044, EM
• Fuel type: Petrol
• Category: Coolant Hoses

Purpose and Function of the Oil Line

The oil line in a gasoline engine plays a crucial role in distributing lubricant between individual components, and in this case, it is connected to the cooling system. In N43 units, stable oil pressure and proper flow are essential for maintaining the correct operating temperature and protecting sensitive components such as the cylinder head, camshafts, and control elements.

A properly selected oil line helps to reduce the risk of localized overheating, leaks, and pressure drops, which in the long run could lead to costly repairs. Using an original BMW solution ensures correct geometry, internal diameter, and compatibility with factory mounting points.

Compatibility with N43 Gasoline Engine

The presented oil line has been designed to work with the gasoline N43 engine used in BMW E-series models. This means it is tailored to the specific architecture of the unit, including:

• compliance with factory routing of lines in the engine bay,
• proper positioning relative to cooling system components,
• adaptation to the thermal conditions typical of modern gasoline engines.

This ensures an organized installation process, without the need for modifications to other components or the use of non-factory clamps and mounts.

Benefits of Using an Original BMW Oil Line

Choosing a used, original BMW oil line offers a number of practical advantages. The most important include:

• Factory Fitment – maintaining the original oil routing and compatibility with the cooling system.
• Consistency with Other Components – compatibility with standard spigots, connectors, and brackets in the N43 engine.
• Stable Operating Parameters – the line is designed for the specific pressures and temperatures found in BMW gasoline units.
• Sensible Service Cost – a used OEM part allows for reduced repair costs while maintaining the manufacturer's intended design.

This solution is particularly beneficial for comprehensive service work on the cooling and lubrication system when maintaining the original engine operating characteristics is a priority.

Condition, Verification, and Service Application

The oil line is from a dismantled vehicle and is offered as a used OEM BMW part. This type of part is well-suited for situations where replacing a damaged or leaking line is necessary, and maintaining the system's factory specifications is a priority. Before installation, a standard check of seals and connector condition is recommended, in accordance with BMW service procedures.

Replacing the oil line is particularly recommended when symptoms such as signs of leakage around connections, unexplained oil level drops, or engine overheating related to improper cooling system operation occur. Combined with regular oil and filter changes, this helps maintain stable operating conditions for the gasoline engine.

Technical Support and Additional Materials

If you are planning more extensive cooling system service and want to better understand the relationship between the coolant circuit and engine lubrication, it is worth consulting a guide describing typical overheating symptoms and the impact of the oil cooler on engine durability – this is thoroughly discussed in the article Engine Cooling System – Overheating, Repair, and Used Coolers.

If you are modernizing or repairing the cooling system in your BMW and need other similar components, such as additional hoses, pipes, or connections used in this brand, check the available parts in the BMW Cooling System Hoses and Pipes category.