Audi R8 42 Oil Neck Filler Screw Cap Chrome 420103485

Audi R8 42 Oil Neck Filler Screw Cap Chrome is a precisely manufactured component from the Oil drain and filler caps and dipsticks category, designed for the lubrication system in Audi sports models. The chrome finish provides an aesthetic look to the engine bay, while the OEM design ensures a perfect fit for the factory oil filler neck.

Specifications and technical data

• SKU: 420103485
• Mark: Audi
• Condition: Used
• OEM Part Number: 420103485
• Substitutable numbers: 420103485, 420 103 485
• Part type: Oil Filler Cap
• Category: Oil Drain Plugs, Filler Caps & Dipsticks

Purpose and technical function

The chrome oil filler cap for the Audi R8 42 series is responsible for sealing the lubrication system at the top of the engine. A correctly selected cap reduces the risk of leaks, protects the oil from external contaminants, and stabilizes the operating conditions of the power unit during dynamic driving.

As an element from the Oil drain and filler caps and dipsticks category, it works with the factory valve cover and filler thread, which facilitates installation and subsequent maintenance, e.g., during regular oil changes.

Construction and performance features

The chrome finish provides a corrosion-resistant surface that withstands elevated temperatures in the engine bay and contact with oil mist. As a result, the cap maintains a stable appearance and function over a long period of operation.

Key performance features of this component include:

• rigid, stable construction adapted to the operating conditions in the engine bay,
• surface designed for a secure grip when unscrewing and tightening,
• designed for compatibility with the factory Audi lubrication system.

Condition of the part and service application

The offered cap is a used part, which allows for an economical repair or replacement of a missing component while maintaining the character of original Audi equipment. This type of component is suitable for both standard service maintenance and engine rebuilding after mechanical repairs.

Replacing the oil filler cap is recommended, among other situations, when the existing part shows signs of mechanical damage, has a worn working surface, or no longer provides adequate sealing of the lubrication system.

Technical support and additional information

Before installation, it is worth verifying the compatibility of the part with the specific engine version of the Audi R8 42 using the manufacturer's markings and catalog data. This will help you avoid fitment issues and maintain the correct operating parameters of the lubrication system.

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other elements from the same group, such as oil drain plugs, filler caps, or dipsticks, check the available parts in the Audi oil drain and filler caps and dipsticks category.

For a better understanding of the impact of proper lubrication and operating temperature on engine durability, it is worth reading the guide on the cooling system and oil circulation: Engine cooling system – overheating, repair, and used radiators. You will find practical tips there on how to take care of your engine to reduce the risk of costly failures.