Mercedes S204 A207 W212 W906 OM651 Fuel Injection Pipes Hoses Set x5 A6510702433

Mercedes S204 A207 W212 W906 OM651 Injector Return Line Kit X5 A6510702433 is a complete set of five return lines designed for OM651 engines in Mercedes vehicles. The kit provides a practical service solution for users who want to restore the injector supply system in an organized manner, maintaining the original line routing geometry and the integrity of the entire system. This component enables efficient servicing and diagnostics of the injection system across a wide range of models.

Specifications and technical data

• SKU: A6510702433
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510702433
• Substitutable numbers: A6510702433, A 651 070 24 33, A6510702533, A 651 070 25 33, A6510703033, A 651 070 30 33
• Category: Additional Fuel Injection Parts

Purpose and Function in the Injection System

The complete set of injector return lines for the OM651 unit is responsible for precisely delivering fuel to the injectors and maintaining stable operating conditions for the system. Using a dedicated set for specific Mercedes models helps preserve correct operating pressure and reduces the risk of leaks caused by improper component fit. This solution is particularly important in diesel engines, where the quality and sealing of the lines directly impact engine smoothness, performance, and emissions.

The set includes five lines, allowing for simultaneous servicing of the entire injector rail without the need to select individual sections. This approach simplifies maintenance, reduces installation time, and minimizes the risk of assembly errors.

Compatibility and OEM Matching

The offered set of injector return lines belongs to the Other Injection System Parts category and is designed for use in Mercedes vehicles equipped with the OM651 engine, including estate, coupe, and van body styles. Using the OEM part number and available replacement numbers in the technical specifications facilitates unambiguous identification of the component and its matching to a specific vehicle version.

In practice, this means that when selecting parts, you can refer to the manufacturer's designations, minimizing the risk of purchasing an incorrect line. This is especially important for modern injection systems, where design differences between engine variants may be visually subtle but significant in terms of operating parameters.

Kit Features and Installation Advantages

The complete set of injector return lines is a component prepared for service installation to replace worn or damaged lines. Using a single, cohesive set allows for:

• restoring the original routing of lines in the engine bay,
• maintaining the correct connection order to the injectors,
• reducing the number of connections and fittings that could be potential sources of leaks,
• organizing the fuel system after previous repairs or modifications.

This solution is beneficial for both workshops and individual users, as it simplifies line condition checks and potential subsequent diagnostics. The consistency of the set translates to greater predictability of the injection system's behavior in the long term.

Product Condition and Practical Application

The offered set of injector return lines is a used part, allowing for economical restoration of the injection system's functionality while maintaining its original design. This type of solution is often chosen for vehicles used intensively, where a reasonable balance between repair cost and maintaining proper engine operating parameters is important.

Before installation, a standard check of the seals and connectors is recommended, in accordance with service procedures for injection systems. A correctly selected and installed set of lines can help reduce problems with uneven engine operation, starting difficulties, or fuel leaks around the injectors.

Selection of Used Parts and Technical Support

When choosing used parts, it is advisable to pay attention to matching by OEM number and compatibility with the specific engine version. Design differences between variants can be subtle, so it is beneficial to rely on catalog data and manufacturer designations. If you want to better understand when it is worthwhile to opt for an original part, an aftermarket part, or a used component, the article will be helpful: Original, Aftermarket, or Used – Which Car Parts Are Most Cost-Effective?.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as lines, rails, or additional fuel system components, check the available parts in the category Other Mercedes Injection System Parts.