Audi R8 42 Automatic Transmission Oil Pipe Hose Line 420317818C

Audi R8 42 Automatic Transmission Oil Line Hose is a specialized component from the oil coolers and lines category, designed for the automatic transmission lubrication system in the Audi R8 series 42 model. It is responsible for the safe routing of transmission oil, supporting stable operating temperatures and proper gearbox function.

Specifications and technical data

• SKU: 420317818C
• Mark: Audi
• Condition: Used
• OEM Part Number: 420317818C
• Substitutable numbers: 420317818C, 420 317 818 C
• Gearbox type: Automatic
• Part type: Oil Cooler Line
• Category: Oil Coolers & Lines

Purpose and Function in the Automatic Transmission System

The oil line in the Audi R8 series 42 automatic transmission operates in a demanding environment of high temperatures and pressure. The oil hose is responsible for transporting the lubricating medium between the gearbox and the oil cooling system components, which is crucial for:

• maintaining stable transmission oil temperature during dynamic driving,
• ensuring proper lubrication of the automatic transmission,
• reducing the risk of overheating and performance degradation of the gearbox.

A correctly selected oil line is particularly important in sports cars like the Audi R8, where thermal and mechanical loads are significantly higher than in standard constructions.

Construction and Fitment for the Oil Cooling System

This element belongs to the oil coolers and lines group, meaning it works in conjunction with the factory automatic transmission oil cooling system. The hose's construction is designed for:

• precise oil routing within the specific geometry of the engine bay and gearbox,
• resistance to the operating pressure typical for Audi automatic transmissions,
• dimensional stability at high operating temperatures.

By maintaining the original geometry and connections, the hose allows for the preservation of the factory oil flow path, which promotes uniform cooling and predictable powertrain behavior.

Benefits of Using an Original Audi Oil Line

Using an oil line originating from Audi provides a range of practical benefits for everyday operation:

• factory fitment for the automatic transmission in the Audi R8 series 42,
• maintaining the original oil cooling characteristics within the transmission system,
• reducing the risk of leaks resulting from the use of incompatible aftermarket parts,
• compatibility with other components in the oil coolers and lines category for this model.

This solution is particularly recommended for repairs of the automatic transmission lubrication and cooling system when you aim to maintain parameters close to factory specifications.

Application in Service and Oil Cooling System Diagnostics

The automatic transmission oil line in the Audi R8 is an element worth inspecting when symptoms such as:

• signs of transmission oil leaks around the gearbox or oil cooler,
• elevated transmission operating temperature,
• uneven gearbox operation under high thermal load conditions.

Replacing the hose with a functional element from the same model series helps restore proper oil flow and supports long-term, stable operation of the automatic transmission.

Used Oil Line – A Conscious Economic Choice

Choosing a used automatic transmission oil line is a sensible solution for drivers who want to maintain a high level of technical performance while controlling service costs. A component of this type, sourced from disassembly, allows you to:

• reduce the cost of oil cooling system repairs compared to new parts,
• maintain the original design specifications intended by the manufacturer,
• minimize vehicle downtime through quick replacement with a complete hose.

This is a particularly attractive option for sports cars, where new powertrain components can be significantly more expensive.

More Audi Oil Cooling System Components

If you are looking for other Audi oil coolers and lines to expand or service your lubrication and cooling system, check out our dedicated category: Audi oil coolers and lines. You will find a wide selection of components tailored for various models of this brand.

Technical Support – How to Care for Your Oil Cooling System

When working on the lubrication and cooling system, it's worth paying attention to the overall condition of components responsible for heat dissipation. You can read about the impact of high temperatures on the cooling system and how used cooling system components can help optimize service costs in our guide: Summer Heat vs. Cooling System: Used Coolers and Fans Guarantee Savings.