Mercedes W205 OM622 OM626 Fuel Line Tube High Pressure Pump Feed A6260700033

Mercedes W205 OM622 OM626 Fuel Line Tube High Pressure Pump Feed is a specialized fuel system component designed for the OM622 and OM626 diesel engines in Mercedes C-Class W205 models. The offered line belongs to the Lines, hoses and tubes category and, as an original Mercedes component, ensures precise high-pressure fuel delivery to the rail or injectors, in accordance with the manufacturer's factory requirements. The used condition of the part allows for an economical yet technically sound repair of the fuel system.

Specifications and technical data

• SKU: A6260700033
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6260700033
• Substitutable numbers: A6260700033, A 626 070 00 33
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

The high-pressure fuel line in OM622 and OM626 engines is responsible for the safe and leak-proof transfer of fuel from the high-pressure pump to other system components. In Mercedes common rail units, stable pressure and the line's resistance to pulsations and vibrations are crucial for proper fuel metering, engine performance, and minimizing the risk of leaks.

A properly selected line:

• maintains the required operating pressure parameters across the entire engine load range,
• minimizes the risk of micro-cracks and leaks in the connection zones,
• ensures stable injector operation and correct combustion characteristics.

Original Mercedes component – fitment and compatibility

The offered item is an original Mercedes fuel line, designed specifically for the geometry of the W205 engine bay with OM622 and OM626 units. This ensures factory-standard length, bend shapes, and connection diameters, which translates into secure routing, no installation stress, and correct positioning relative to other components.

Thanks to this solution:

• installation follows the factory service procedure,
• there is no need to modify brackets or mounts,
• compatibility with original common rail system connectors is maintained.

Performance characteristics and advantages

This high-pressure fuel line has been designed to operate in the demanding thermal and mechanical conditions typical of modern diesel engines. The design of the line ensures:

• resistance to high operating pressures typical of common rail systems,
• dimensional stability over a wide temperature range,
• appropriate rigidity while dampening engine vibrations.

Using an original component instead of a worn or damaged line allows for the restoration of proper fuel system parameters, reducing the risk of power loss, starting issues, or fuel pressure-related error codes.

Condition, origin, and installation aspects

The offered line comes from dismantling and is marked as a used part, which is a cost-effective solution while maintaining the original manufacturer's specifications. Before reinstallation, a standard service procedure is recommended, including checking the seats, using new seals, and tightening the connections to the appropriate torque according to Mercedes technical documentation.

In practice, the installation of the line involves:

• correct routing along factory brackets and guides,
• maintaining cleanliness around the high-pressure connections,
• checking the system for leaks after the first engine start.

System expansion and related parts

If you are planning a comprehensive repair or upgrade of the fuel system area in your Mercedes and need other items from the same group, such as additional supply lines, return hoses, or tubes connecting individual system sections, check the available parts in the Mercedes Lines, hoses and tubes category.

For users interested in broader use of parts from dismantling – especially in the context of mechanical modifications and operating cost optimization – an article describing a practical approach to tuning using OEM components from the secondary market may be helpful: Emotions and design – visual and mechanical tuning of a Seat using components from dismantling.

Summary

Mercedes W205 OM622 OM626 Fuel Line Tube High Pressure Pump Feed is a technically matched, original fuel system component that allows for the restoration of proper diesel engine operation in accordance with Mercedes factory standards. Choosing a used line from dismantling is a reasonable compromise between cost and quality, especially in the case of common rail system repairs, where maintaining proper geometry, tightness, and resistance to high operating pressure is crucial.