Mercedes W639 OM642 Diesel Fuel Line Hose Injection System Pipe A6420702632

Mercedes W639 OM642 Diesel Fuel Line Hose Injection System Pipe is a component from the Lines, hoses and pipes group, designed for the OM642 diesel engine fuel system. This used original Mercedes part allows for maintaining factory diesel fuel flow characteristics and proper fuel delivery to the power unit.

Specifications and technical data

• SKU: A6420702632
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420702632
• Substitutable numbers: A6420702632, A 642 070 26 32
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Application in the diesel fuel system

The fuel line in this model is responsible for stable and leak-proof fuel routing in the diesel engine, which is crucial for smooth injection operation and proper starting of the OM642 unit. The design of the line is adapted to the pressures and temperatures typical of modern diesel engines, which reduces the risk of leaks and pressure drops in the system.

Thanks to its precise fit for the specific configuration of the Mercedes W639, the line maintains the correct fuel routing geometry, minimizing stress on connections and adjacent components. This solution helps maintain stable fuel system operating parameters and facilitates diagnostics in the event of potential faults.

Benefits of using an original Mercedes line

Using an original fuel line in a Mercedes vehicle with an OM642 engine ensures:

• Factory fitment for the fuel system of the specific W639 body version.
• Appropriate resistance to diesel fuel and typical thermal loads.
• Correct routing of the line in the engine compartment, in accordance with the manufacturer's specifications.
• Reduced risk of incorrect installation compared to universal replacements.

For workshops and users, this means more predictable installation and a lower risk of operational problems related to the fuel system.

Installation and operational characteristics

The fuel line designed for the Mercedes W639 with the OM642 unit is engineered as a component that works in conjunction with other fuel system parts, such as the pump, rail, and injectors. The appropriate rigidity and flexibility of the line facilitate its placement in the engine compartment while limiting the transmission of vibrations to the connections.

The used condition of the part allows for economical vehicle repair while maintaining the original manufacturer's specifications. In practice, this is a beneficial solution for servicing fleet vehicles and cars used intensively, where both cost and maintaining correct engine operating parameters are important.

Mercedes lines, hoses and pipes – system expansion and service

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as fuel lines, vacuum hoses, or fuel return pipes, check out the available parts in the Mercedes lines, hoses and pipes category.

Safe purchase of used parts online

When choosing a used fuel line for a Mercedes, it is worth paying attention to compatibility with the manufacturer's markings and the diesel fuel type to avoid problems with installation and engine operation. Additional tips on verifying parts, selecting by manufacturer numbers, and safe online purchasing can be found in the guide Safe purchase of used car parts online – a step-by-step guide, prepared for drivers and workshops.