Mercedes W204 M274 Automatic Gearbox Oil Cooler Pipe Hose Right A2042705296

Mercedes W204 M274 Automatic Transmission Oil Cooler Hose Right is an original part from the Oil Coolers and Hoses category, designed for the automatic transmission oil cooling system. It enables stable heat dissipation from the gearbox oil, supporting safe drivetrain operation and reducing the risk of overheating during intensive use.

Specifications and technical data

• SKU: A2042705296
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2042705296
• Substitutable numbers: A2042705296, A 204 270 52 96
• Location on the vehicle: Right
• Gearbox type: Automatic
• Category: Oil Coolers & Lines

Hose Purpose and Function

The presented hose is dedicated to the oil cooling system in automatic transmissions of Mercedes W204 models with the M274 engine, on the right side of the vehicle. Its function is to ensure controlled oil flow between the transmission and the cooler, which translates to a stable operating temperature of the gearbox and improved durability of the entire drivetrain.

Thanks to precise fitting to the specific body and drivetrain configuration, the hose maintains the correct routing geometry, minimizes stress on connections, and reduces the risk of leaks at critical points of the installation.

Benefits of Using an Original Mercedes Hose

Using an original hose in the automatic transmission oil cooling system offers a range of practical benefits:

• maintaining the factory oil flow characteristics in the gearbox cooling circuit,
• correct fit to the mountings and brackets on the right side of the vehicle,
• reducing the risk of leaks due to compatibility with factory connectors,
• maintaining a stable operating temperature of the automatic transmission under typical and increased loads.

An element configured this way ensures the integrity of the entire oil cooling system, which is important for both driving comfort and the long-term reliability of the transmission.

Installation and Operational Characteristics

The hose is prepared for installation on the right side of the vehicle, in a system cooperating with the automatic transmission. The hose's construction is adapted to the routing of the installation in the engine bay and to the factory mounting points, which facilitates the mechanic's work and reduces replacement time.

The part is from a dismantled vehicle, which ensures compliance with the manufacturer's original specifications. For the user, this means the possibility of restoring correct oil cooling system operation without the need for installation modifications or the use of adapters.

Role of the Oil Cooler Hose in Protecting the Automatic Transmission

A functional oil cooler hose directly impacts the protection of the automatic transmission against overheating. Maintaining proper oil flow through the cooler:

• supports stable gear changes across a wide temperature range,
• limits the degradation of transmission oil under heavy loads,
• reduces the risk of damage to internal transmission components resulting from excessive temperature.

Combined with regular checks of oil condition and system tightness, replacing the hose with a functional unit is an important step in the preventative maintenance of an automatic transmission.

Technical Support and Guide Materials

During periods of high temperatures, it is particularly important to maintain the efficiency of the entire cooling system, including the gearbox oil circuit. To better understand the impact of heat on the cooling system and the potential savings when using used components, it is worth consulting our guide Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings.

If you also need other components for your Mercedes' automatic transmission oil cooling system, such as additional hoses, return lines, or cooler supply elements, check the available parts in the Mercedes Oil Coolers and Hoses category.