Pipe Mercedes C205 M651 Automatic Transmission Oil Cooler Feed Line A6511805730

Mercedes C205 M651 Gearbox Oil Hose Line is a specialized component from the Oil Coolers and Lines group, designed for the automatic transmission lubrication system in Mercedes vehicles. It is responsible for the safe routing of gearbox oil between components, supporting stable operating temperatures and the durability of the entire drivetrain. This is a solution for users seeking parts with factory geometry and predictable flow parameters.

Specifications and technical data

• SKU: A6511805730
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6511805730
• Substitutable numbers: A6511805730, A 651 180 57 30
• Gearbox type: Automatic
• Category: Oil Coolers & Lines

Purpose and Function in the Automatic Gearbox System

The oil line in an automatic gearbox is responsible for transporting the working fluid between the transmission and cooling components. For the C205 model with the M651 unit, its proper functioning affects:

• maintaining stable transmission oil temperature during city and highway driving,
• preserving correct oil circuit pressure,
• reducing the risk of automatic gearbox overheating,
• ensuring smooth lubrication system operation in the long term.

Thanks to its precise fit for the specific drivetrain configuration, the line works with the factory oil cooling system, promoting predictable gearbox behavior under various load conditions.

Benefits of Using an Original Oil Line

Using a line dedicated to this version of Mercedes helps to minimize problems typical of aftermarket replacements with imprecise dimensions. In practice, this means:

• secure oil routing within the engine bay without stress on the connections,
• better fit with factory brackets and mounts,
• reduced risk of leaks at connections to the oil cooler and gearbox,
• easier visual inspection of the line during periodic maintenance.

For users who operate their vehicles in varied thermal conditions, a correctly selected oil line is crucial support for the stable operation of the automatic transmission.

Characteristics of a Used Component

The offered oil hose line comes from the secondary market, allowing for an economical approach to servicing while maintaining a design consistent with the factory solution. A used component of this type is particularly attractive in situations where:

• a quick replacement of a damaged line is necessary after a collision or failure,
• preserving the original routing of oil lines in the engine bay is important,
• optimizing repair costs while maintaining proper functionality is a priority.

Before installation, a standard check of the seals and connection ends is recommended to ensure trouble-free operation in the specific vehicle.

Integration with the Oil Cooling System

As a component from the Oil Coolers and Lines group, this oil hose line works with the gearbox oil cooler, contributing to the stabilization of the working fluid's temperature. A properly functioning oil circuit:

• reduces the degradation of gear changes at high ambient temperatures,
• supports even lubrication of the transmission's internal components,
• lowers the risk of accelerated wear of clutch plates and control valves.

For drivers who want to better understand the impact of temperature on the cooling and lubrication system, the following guide may be helpful: Summer Heat vs. Cooling System: Used Coolers and Fans Guarantee Savings.

Support for Expanding the Mercedes Oil Cooling System

If you are planning a comprehensive repair or upgrade of the oil cooling system area in your Mercedes and need other components from the same group, such as additional oil lines, connecting sections, or fluid routing elements, check the available parts in the Mercedes Oil Coolers and Lines category.

Summary

The Mercedes C205 M651 Gearbox Oil Hose Line is a practical service solution for users of automatic transmissions in vehicles of this series. A correctly selected line supports stable gearbox operation, improves oil circuit safety, and facilitates maintaining the vehicle's operational fitness, while offering a favorable cost-to-functionality ratio.