Mercedes 722.9 Transmission Oil Cooler

The 722.9 Transmission Oil Cooler is a cooling component designed for Mercedes-Benz 7G-Tronic automatic transmissions. The cooler helps regulate transmission fluid temperature by transferring heat away from the transmission oil, allowing the gearbox to maintain stable operating conditions during different driving situations.

The Mercedes-Benz 722.9 transmission, also known as the 7G-Tronic transmission, is widely used in Mercedes passenger cars, SUVs and commercial vehicles. Because automatic transmissions rely on properly controlled fluid temperature for hydraulic operation, lubrication and clutch performance, a reliable transmission oil cooler is an important part of the complete transmission system.

This product is designed for professional transmission repair shops, rebuilders, distributors and wholesale customers requiring replacement cooling components for Mercedes 722.9 applications.

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Mercedes 722.9 7G-Tronic Oil Cooler Application

The Mercedes 722.9 Transmission Oil Cooler is used on selected Mercedes-Benz 7G-Tronic automatic transmissions.

The 722.9 transmission family includes different versions depending on vehicle model, production year and drivetrain configuration. Applications may include Mercedes-Benz C-Class, E-Class, S-Class, CLS, ML, GL, GLK and other models equipped with the 7-speed automatic transmission.

Because Mercedes-Benz transmissions can use different cooler designs and connection configurations, customers should confirm the original cooler shape, mounting position, transmission model and vehicle information before ordering.

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Transmission Oil Cooler Function

The transmission oil cooler plays an important role in maintaining correct automatic transmission fluid temperature.

During operation, transmission fluid absorbs heat generated by:

• Clutch operation
• Gear engagement
• Hydraulic pressure control
• Internal friction
• Torque converter operation

The cooler transfers this heat away from the fluid, helping maintain suitable lubrication performance and hydraulic efficiency.

If the transmission cooling system is not working correctly, excessive transmission temperature may accelerate fluid deterioration, increase component wear and affect shifting quality.

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722.9 Gearbox Cooling System

The Mercedes 722.9 7G-Tronic transmission uses an integrated cooling system to control operating temperature. Depending on the vehicle configuration, transmission fluid may pass through a dedicated oil cooler or a heat exchanger system connected with the vehicle cooling circuit.

A damaged or inefficient transmission cooler may contribute to:

• High transmission temperature
• Reduced transmission performance
• Fluid degradation
• Abnormal shifting behavior
• Increased internal component wear

During transmission repair, technicians should inspect the cooler, fluid lines, connections and cooling passages to ensure proper operation.

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Mercedes 7G-Tronic Transmission Repair

The 722.9 Transmission Oil Cooler is suitable for professional transmission maintenance and repair operations.

When rebuilding or servicing a Mercedes 7G-Tronic transmission, technicians should inspect related components including:

• Valve body assembly
• Transmission control module
• Hydraulic components
• Sealing components
• Transmission fluid system

Replacing damaged cooling components together with other necessary repair parts can help restore reliable transmission operation.

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Professional Transmission Cooling Solution

The transmission oil cooler is a critical supporting component of the automatic transmission system. Although it does not directly control gear shifting, maintaining correct oil temperature helps protect internal transmission components and improve long-term reliability.

Professional workshops should confirm cooler compatibility before installation. Important matching information includes:

• Transmission model
• Vehicle model
• Cooler design
• Connection type
• Original part number

This helps ensure correct installation and avoid cooling system problems after repair.

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Related Mercedes Transmission Parts

We also supply Mercedes transmission components including:

• Transmission control modules
• Valve body assemblies
• Solenoid valves
• Repair kits
• Sealing components
• Transmission hard parts
• Transmission cooling components

These parts can be supplied separately or combined according to workshop and rebuilding requirements.

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722.9 Transmission Oil Cooler Wholesale Supply

We supply Mercedes-Benz transmission cooling components for professional repair workshops, transmission rebuilders, distributors and wholesalers worldwide.

The 722.9 Transmission Oil Cooler is suitable for customers requiring replacement cooling components for Mercedes 7G-Tronic automatic transmissions.

Please provide the original cooler photo, transmission model, vehicle information or part number when requesting a quotation. This helps confirm compatibility and ensure the correct cooler configuration before shipment.