BMW E81 E87 E90 E91 Petrol N52 Oil Cooling Pipe Hose Inlet 4517440

The BMW E87 E90 Oil Cooler Hose N52 is an original oil cooling system component designed for N52 gasoline engines in BMW E87 and E90 models. Thanks to its factory geometry and correct diameter, it ensures stable coolant flow, which translates to safe engine operating temperatures and proper cooperation with the oil cooler. A used OEM component is a sensible choice for drivers who want to maintain structural integrity of the lubrication system without excessive costs.

Specifications and technical data

• SKU: 4517440
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 4517440
• Substitutable numbers: 17227577635, 7577635, 17227521077, 7521077, 17224517440, 4517440, 17224479152, 4479152, 4517441, 11617580782, 7580782, 11617527098, 7527098
• Fuel type: Petrol
• Category: Other Engine Parts

Function of the Oil Cooler Hose in the N52 Engine

In N52 gasoline engines, the oil cooling system is crucial for the durability of the powertrain. The oil cooler hose is responsible for transporting oil or coolant between the heat exchanger and the cooler, stabilizing the temperature across a wide range of loads. A correctly selected hose:

• maintains proper pressure in the circuit,
• minimizes the risk of oil overheating during dynamic driving,
• limits pressure drops resulting from leaks or hose deformation,
• supports even lubrication of the engine's moving parts.

This allows the lubrication system in the N52 gasoline engine to maintain stable parameters, contributing to smooth engine operation and reducing the risk of accelerated wear.

Compatibility and Application in BMW E87 / E90

The hose has been designed with the engine bay architecture of BMW E87 and E90 with the N52 unit in mind, meaning it fits factory mounting points and installation routing. The hose's appropriate profiling facilitates its placement in the tight engine bay space without interfering with other accessories.

In practice, this translates to:

• easier installation without the need for modifications,
• maintaining the original hose routing in the oil cooling system,
• reducing stress resulting from improper hose placement.

For BMW owners with the N52 gasoline engine, this solution allows for restoring the factory parameters of the oil cooling system while maintaining compliance with manufacturer documentation.

Characteristics of a Used OEM Component

The offered oil cooler hose is an original BMW part, sourced from disassembly. A used OEM component retains its factory construction, which is particularly important for parts operating under pressure and at elevated temperatures. Compared to low-quality aftermarket alternatives, an original hose typically withstands long-term thermal and mechanical loads better.

For many BMW owners, choosing a used OEM part is a compromise between cost and maintaining the vehicle's original technical specifications. This solution is often chosen for servicing older vehicles where both functionality and repair economy are important.

Benefits of a Properly Functioning Oil Cooler Hose

An efficient oil cooler hose in the N52 gasoline engine impacts several key operational areas:

• stabilizes oil temperature during highway driving and under load,
• reduces the risk of leaks, which can lead to a drop in oil level,
• supports smooth engine operation across the full RPM range,
• decreases the likelihood of overheating and associated costly repairs.

For owners of BMW E87 and E90 with the N52 gasoline engine, this is a component that directly affects operational safety and predictable vehicle behavior in daily driving.

Used BMW Parts – Additional Information

Choosing a used oil cooler hose often goes hand in hand with the decision to use other aftermarket components. If you want to learn more about the advantages of such a solution – including savings, original quality, and ecological aspects – it's worth reading the guide: Are used parts for BMW a good solution. This is a practical compendium for those planning to service their car using original disassembled parts.

If you are planning a comprehensive repair or upgrade of the oil cooling system in your BMW and need other parts from the same group, such as hoses, connectors, or additional sections of the system, check the available parts in the Other BMW category.

For a comparison of solutions used in other brands and sports segments, including powerful gasoline engines, an article discussing the differences in engine, brake, and chassis construction may also be helpful: Audi RS vs. Other Models – What Lies Under the Hood and Chassis. This provides a good technical background for those interested in the construction of advanced powertrain and cooling systems in high-performance cars.