Oil Cooler Pipe Audi A4 B8 A5 8T Power Steering Hose Line Diesel 8K0422887AH

Oil Cooler Pipe Audi A4 B8 A5 8T Power Steering Hose Line Diesel is an original hydraulic system component designed for Diesel engine models. It ensures a stable connection between the pump and other steering components, which translates into predictable, safe, and comfortable vehicle handling. This is a solution for users who expect factory compatibility and a proven design in their Audi.

Specifications and technical data

• SKU: 8K0422887AH-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8T0422887AH
• Substitutable numbers: 8T0422887AH, 8T0 422 887 AH
• Fuel type: Diesel
• Category: Power Steering Pumps

Purpose and function in the steering system

The power steering hose in an Audi is responsible for transporting hydraulic fluid between the pump and the steering gear, maintaining the correct operating pressure throughout the system. In Diesel versions, it operates under increased thermal and pressure loads, which is why its construction is adapted to the specifics of these power units. A properly selected hose minimizes the risk of pressure drops, pump noise, and steering stiffness during maneuvering.

Construction and performance parameters

The element belongs to the Power steering pumps group, but plays a key role as a high-pressure hose working with the pump. The geometry of the connections and the shape of the rigid and flexible sections are matched to the engine compartment of the Audi A4 B8 and A5 8T, which facilitates hose routing while maintaining appropriate bending radii and clearances relative to other components.

The hose is designed to:

• maintain stable operating pressure throughout the entire engine speed range,
• limit the transmission of vibrations from the pump to the steering gear,
• operate in temperatures and load conditions typical for diesel units.

Benefits of using an original Audi hose

Using a hose dedicated to the Audi A4 B8 and A5 8T with a diesel engine allows you to maintain the factory operating parameters of the steering system. Precise fitment of length, diameter, and connection shape translates into easier installation and reduces the risk of leaks resulting from installation stress. Maintaining the correct power steering fluid pressure affects:

• smooth steering operation during parking maneuvers,
• stable, predictable steering system reactions at higher speeds,
• reduced pump load, which can extend its service life.

For users who want to maintain handling characteristics consistent with the manufacturer's specifications, choosing such a hose is a technically sound solution.

Condition of the element and practical application

The offered hose comes from dismantling, which makes it an attractive cost alternative to a new component, while maintaining the original design and fitment to the system. With proper installation and the use of the appropriate power steering fluid, it can effectively restore system efficiency in cars where leaks, pressure drops, or improper pump operation have occurred.

If you are planning a comprehensive repair or upgrade of the steering system area in your Audi and need other elements from the same group, such as pressure hoses, return lines, or pump supply components, check the available parts in the Audi power steering pumps category.

Part selection and technical knowledge

When selecting a steering hose for a specific engine and body version, it is worth using catalog data and manufacturer markings to avoid problems with installation and tightness. It may also be helpful to compare the hose routing and connection types with the element currently installed in the vehicle. For users who want to deepen their knowledge about related vehicle systems, an article describing the diagnostics and selection of engine supply components will be useful: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

If you are also interested in the economic and environmental aspect of using dismantled parts, it is worth reading the material discussing the impact of such choices on vehicle operation and the circular economy: Circular economy in your garage – how choosing used parts from dismantling really supports environmental protection and your wallet?.