Audi R8 42 Gearbox Cooling Oil Pressure Pipe Hose Line 4.2 FSI 420317826A

The Audi R8 4.2 FSI Gearbox Oil Cooler Pressure Hose is an original lubrication system component responsible for the stable supply of oil to the gearbox cooler. This used part from the Oil Coolers & Hoses category allows for a technically correct repair of the oil cooling system in the Audi R8 sports car, without the need for a costly replacement of the entire module.

Specifications and technical data

• SKU: 420317826A
• Mark: Audi
• Condition: Used
• OEM Part Number: 420317826A
• Substitutable numbers: 420317826A, 420 317 826 A
• Part type: Oil Cooler Line
• Category: Oil Coolers & Lines

Purpose and Function in the Oil Cooling System

This pressure hose operates within the gearbox oil circuit, ensuring a stable flow of cooling medium between the gearbox and the oil cooler. A properly functioning oil line:

• maintains adequate oil pressure in the gearbox cooling circuit,
• reduces the risk of gearbox overheating during dynamic driving,
• supports the durability of internal gearbox components through stable lubrication conditions.

By maintaining the original geometry and internal diameter of the hose, oil flow remains consistent with the manufacturer's design specifications, which is crucial for Audi's sports drivetrain.

Benefits of Using an Original Oil Cooler Hose

Choosing an original pressure hose from this series is a beneficial solution both technically and economically. This component ensures:

• factory fit for the Audi R8 gearbox cooling system – no modifications or adaptations required,
• preservation of the hose's designed rigidity and flexibility, which reduces vibrations and stresses in the oil system,
• proper pressurized oil routing, minimizing the risk of localized pressure drops and cavitation,
• compatibility with other oil cooling system components, such as the cooler and gearbox connections.

A used OEM component allows for maintaining high system efficiency while reducing service costs, which is particularly important for high-performance sports cars like the Audi R8.

Condition, Verification, and Service Application

The offered hose belongs to the group of used oil coolers and hoses, which practically means the possibility of an economical repair of the gearbox oil cooling system while maintaining original specifications. Before installation, it is recommended to:

• check the tightness of connections on the gearbox and oil cooler sides,
• inspect the condition of the seats and connectors for any mechanical damage,
• flush the oil system if required by the vehicle manufacturer's service procedure.

This approach allows for the safe restoration of the gearbox oil cooling system's full functionality, leading to stable gearbox operation under a wide range of loads.

Optimal Operating Temperature and Gearbox Durability

A functional oil pressure hose directly impacts the maintenance of the correct gearbox operating temperature. In conjunction with an efficient oil cooler, it reduces:

• oil viscosity drop at high temperatures,
• accelerated wear of friction components inside the gearbox,
• the risk of overheating during intensive use, typical for sports cars.

If you want to better understand how temperature affects the entire cooling system in a vehicle, it's worth checking out our guide: Summer Heat vs. Cooling System – Used Coolers and Fans as a Way to Save Money. This is a practical addition to your knowledge when planning a comprehensive oil cooling system service.

Related Products and Audi Oil Cooling System Development

When modernizing or repairing the oil cooling system in an Audi R8, it's also worth considering other components from the same group, such as additional hoses or oil coolers. If you are looking for other Audi oil coolers and hoses, check out our dedicated category: Audi Oil Coolers & Hoses. This will make it easier to assemble a cohesive set of components, tailored to the specific drivetrain of your car.