Mercedes C204 Oil Pump Pipe Line Hose 2.2 Diesel A1561840458

Mercedes C204 Oil Pump Pipe Line Hose 2.2 Diesel is an original lubrication system component designed for 2.2 diesel engines in the C204 body style. It is responsible for the precise delivery of oil to the pump, which directly impacts stable lubrication pressure and the durability of the power unit. Thanks to its factory geometry and fitment to the Mercedes design, it ensures reliable integration with the oil system without the need for modifications.

Specifications and technical data

• SKU: A1561840458
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1561840458
• Substitutable numbers: A1561840458, A 156 184 04 58
• Fuel type: Diesel
• Category: Oil Pumps & Parts

Function and role in the lubrication system

The oil pump pipe in the 2.2 diesel engine is responsible for transporting the lubricating medium between key sections of the system. A properly selected pipe minimizes pressure drops, reduces the risk of cavitation, and supports even oil distribution through the engine channels. In practice, this means:

• stable oil pump operation across the entire RPM range,
• better protection for bearings, the crankshaft, and the timing system,
• reduced risk of overheating components working under heavy loads.

Compatibility with the 2.2 Diesel unit

The component has been designed specifically for compression-ignition engines, which translates into a perfect fit for the operating characteristics of the 2.2 Diesel unit. The lubrication system in these types of engines operates under higher thermal and mechanical loads, which is why the correct oil pump pipe is essential for maintaining proper operating parameters. Thanks to a design consistent with factory solutions, the pipe maintains:

• the appropriate oil flow diameter,
• proper routing in the engine bay,
• compatibility with mounts and seals used by the manufacturer.

Benefits of using an original used component

Choosing an original, used oil pump pipe for a Mercedes allows you to balance cost control while maintaining compliance with the factory design. Unlike many aftermarket replacements, a component sourced from the vehicle manufacturer's production retains its original geometry, which facilitates installation and reduces the risk of leaks. The main advantages of this solution include:

• factory fitment to the oil system without the need for modifications,
• preservation of the original pipe routing in the engine bay,
• the possibility of economical repair while maintaining manufacturer standards. If you want to better understand why original used components are often a beneficial choice in terms of durability and cost, it is worth reading the article: economical vehicle operation using original used parts.

Application in service and oil system modernization

Replacing the oil pump pipe is recommended during engine overhauls, oil pump regeneration, and in situations where leaks or mechanical damage to the existing component have been identified. A properly selected pipe helps restore nominal oil pressure parameters, which is important both in daily operation and during intensive vehicle use. In practice, this type of component is particularly important in diesel engines, where:

• crank-piston system loads are high,
• a stable oil film is required on friction surfaces,
• improper lubrication can quickly lead to costly failures.

System expansion: Mercedes oil pumps and parts

If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other components from the same group, such as pump housings, oil pickups, or additional supply lines, check the available parts in the Mercedes oil pumps and parts category. For those interested in a broader context of technical solutions used by the manufacturer across different model generations, the material describing the development of design solutions and parts in higher vehicle classes may also be helpful: evolution of Mercedes technical solutions and parts over the years.