BMW 5 6 Series E60 M5 E63 E64 M6 S85 Vanos Connecting Oil Pressure Line Pipe

BMW E60 M5 E63 E64 M6 S85 Oil Line Hose is an original lubrication system component from the Oil Pumps and Parts group, designed for the S85 engine used in the sporty BMW M5 E60 and M6 E63/E64 models. A properly selected oil line is crucial for stable oil pressure and the safe operation of a high-revving engine.

Specifications and technical data

• SKU: 7834573
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7834573
• Substitutable numbers: 11367834573, 7834573, KZ
• Category: Oil Pumps & Parts

Purpose and Function of the Oil Line

The oil line in the S85 engine is responsible for precisely delivering lubricant to specific sections of the powertrain, which reduces friction and aids in heat dissipation. In high-performance M models, such as the E60 M5 or E63/E64 M6, the correct functioning of the lubrication system is particularly important for the durability of bearings, the crankshaft, and timing components.

An original hose from the Oil Pumps and Parts group ensures the correct geometry, bore diameter, and fitment to factory mounting points, which facilitates installation and minimizes the risk of leaks.

Benefits of Using an Original BMW Part

For the S85 engine, using an oil line that originates from the same design lineage as other lubrication system components allows for the preservation of factory operating parameters. The original BMW part has been designed with consideration for:

• resistance to high oil temperatures and variable operating pressures,
• dimensional stability during long-term use,
• correct routing of the hose within the engine bay, without interference with other components.

As a result, the oil line helps to reduce the risk of pressure drops, leaks, and localized lubrication failures, which directly impacts the lifespan of the powertrain.

Product Characteristics and Condition

The offered BMW oil line belongs to the OEM (Original Equipment Manufacturer) category, meaning it is fully compliant with the vehicle manufacturer's factory specifications. The product is in used condition, allowing for an economical repair while maintaining the original design and fitment for the S85 engine.

Choosing a used OEM oil line is particularly beneficial for advanced M engines, where low-quality aftermarket alternatives may not meet the requirements for durability and precision manufacturing.

Practical Application in Service

The oil line for the S85 engine is used in both standard lubrication system component replacements and during major service work, such as engine overhauls or oil pump replacements. In workshop practice, the following are particularly valued:

• factory fitment to connection points in the block and cylinder heads,
• preservation of the original hose routing path,
• possibility of installation without the need for modifications to other components.

This solution reduces mechanic's working time and minimizes the risk of installation errors, leading to stable lubrication system operation after the repair is completed.

Lubrication System Expansion and Part Selection

If you are planning a comprehensive repair or modernization of the engine area in your BMW and require other parts from the same group, such as additional oil lines, oil pump supply components, or small accompanying parts, check the available parts in the BMW Oil Pumps and Parts category.

When selecting used OEM parts, it is advisable to pay attention to their origin and compatibility with the specific powertrain. You can find more information about the advantages of using original salvaged components in the article OEM Quality Guarantee and Safety – Why Used Original Car Parts Are the Best Choice for Your Car?, which discusses the technical and economic aspects of such a solution.