Audi RS6 C7 Transmission Gearbox Oil Cooler 4H0317021L

Audi RS6 C7 Transmission Gearbox Oil Cooler is an original component from the Oil coolers and lines group, designed specifically for efficient heat dissipation from the transmission in Audi sports models. Thanks to its precise OEM design, it ensures stable operating conditions for the automatic transmission even during dynamic driving and under high loads. A used component of this type is a reasonable, technically sound choice for repairs and upgrades of the drivetrain.

Specifications and technical data

• SKU: 4H0317021L
• Mark: Audi
• Condition: Used
• OEM Part Number: 4H0317021L
• Substitutable numbers: 4H0317021L, 4H0 317 021 L
• Category: Oil Coolers & Lines

Purpose and technical function

The transmission oil cooler in the Audi RS6 C7 is responsible for controlling the temperature of the lubricating medium in the automatic transmission. Maintaining the oil within the optimal temperature range:

• stabilizes transmission operating parameters under high torque,
• limits the degradation of oil and friction elements,
• reduces the risk of overheating during intensive use,
• supports the smoothness and consistency of gear shifts.

For high-power units such as the RS6 C7, a functional transmission oil cooling system is crucial for maintaining the durability of the entire drivetrain.

Benefits of using an original Audi cooler

Using an original Audi oil cooler instead of a worn or damaged component allows you to maintain the factory operating parameters of the system. The most important advantages include:

• Precise mounting fit – compatibility with factory mounting points and oil line layout.
• Predictable cooling characteristics – design developed for the specific thermal loads of the RS6 C7.
• Consistency with the factory transmission control system – no need for installation modifications.

As a result, the replacement process is orderly, and the final effect is in line with the vehicle manufacturer's specifications.

Component condition and service application

The offered Audi transmission oil cooler comes from disassembly and is a used component, intended for service applications and post-accident repairs. This type of part is particularly useful when:

• mechanical damage to the existing cooler has occurred (e.g., after a collision),
• there are leaks in the transmission oil circuit,
• replacement of the component is necessary as part of a comprehensive transmission overhaul.

Selecting an original component from the same model family reduces the risk of compatibility issues and facilitates workshop operations.

Integration with the cooling system and drivetrain durability

A functional transmission oil cooler works with other components of the vehicle's cooling system, stabilizing the operating conditions of the entire drivetrain. A properly functioning cooling system has a direct impact on the lifespan of the engine and transmission, which is discussed in more detail in the article: Engine cooling system – overheating, repair, and used coolers. Replacing the oil cooler with a functional unit is one of the key steps in eliminating transmission overheating problems.

System expansion – related Audi components

If you are planning a comprehensive repair or upgrade of the transmission lubrication and cooling area in your Audi and need other elements from the same group, such as additional oil coolers, oil lines, or cooling system connectors, check the available parts in the Audi oil coolers and lines category.