Mercedes-Benz ML W164 OM642 Fuel Injection Line Pressure Pipe Rail Injector Set

Mercedes W164 OM642 Fuel Line Set is a complete set of original components from the cooling system hoses and pipes group, designed for use in OM642 units in W164 series models. The set ensures stable routing of the working medium within the engine, supporting proper system operation and reducing the risk of leaks.

Specifications and technical data

• SKU: A6420700033 / A6420701433 / A6420700800
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420700033 A6420701433 A6420700800
• Substitutable numbers: A6420700033, A 642 070 00 33, A6420701433, A 642 070 14 33, A6420700800, A 642 070 08 00
• Category: Coolant Hoses

Purpose and Technical Characteristics

The presented set of hoses has been developed for the OM642 engine in the W164 body, maintaining the factory standards of the Mercedes brand. The components belong to the Cooling system hoses and pipes category, meaning they are adapted to operate in high-temperature environments and variable thermal loads within the engine compartment.

The original design of the hoses ensures:

• proper routing of the medium within the powertrain unit,
• compatibility with the factory equipment of the OM642 engine,
• maintenance of the correct layout geometry in the engine compartment.

Benefits of Using an Original Hose Set

Using a complete set of hoses dedicated to the W164 with an OM642 engine helps to reduce problems associated with leaks and improper medium flow. By maintaining factory design parameters, you achieve:

• stable operation of the cooling system in the engine area,
• better resistance to thermal loads compared to low-quality aftermarket parts,
• certainty of fit to the mounts and connectors of the factory equipment.

This solution is particularly recommended for comprehensive service work on the OM642 unit when you want to maintain consistency with the factory specifications.

Component Condition and Service Application

The hose set is from disassembly, allowing for an economical restoration of the system in the vehicle without the need to purchase more expensive new components. This type of set is suitable for:

• overhauling the OM642 unit in a Mercedes W164,
• eliminating leaks in the hoses within the engine compartment,
• restoring the factory configuration after previous modifications.

Thanks to the preservation of original geometry and mounting points, installation is predictable, and the risk of fitting problems is reduced.

Technical Support and Cooling System Knowledge

When working on hoses and pipes, it is worth paying attention to the overall condition of the cooling system and symptoms of engine overheating. If you want to better understand the relationships between hoses, the radiator, and other components, check out our guide: Engine Cooling System – Overheating, Repair, and Used Radiators. This is a practical addition to your knowledge when planning broader service work.

Other Mercedes Cooling System Hoses and Pipes

If you are also looking for other Mercedes cooling system hoses and pipes for your car, check out the dedicated category: Mercedes Cooling System Hoses and Pipes. This will help you easily select additional system components while maintaining brand and category consistency.