Audi A3 8P Spare Wheel Screw Mounting Securing Holder Bolt 1K0803899B

Audi A3 8P Spare Wheel Securing Bolt is a precise component from the Jacks & Tool Kits category, designed for securely fastening the spare wheel in the rear of the vehicle. A properly selected bolt stabilizes the wheel in the trunk, reduces unwanted vibrations and noise, and supports the correct arrangement of other equipment. This is a practical solution for users who expect secure fastening and preservation of the original functionality of the cargo space.

Specifications and technical data

• SKU: 1K0803899B
• Mark: Audi
• Condition: Used
• OEM Part Number: 1K0803899B
• Substitutable numbers: 1K0803899B, 1K0 803 899 B
• Location on the vehicle: Rear
• Category: Spare Tyre Jack & Tool Kits

Purpose and Function in the Vehicle

The bolt is intended for installation in the rear of the body, where it is responsible for the stable mounting of the spare wheel in its designated recess. When properly tightened, it holds the wheel in one position, which:

• reduces the risk of the wheel moving during driving,
• minimizes noise and vibrations in the trunk,
• protects upholstery and trim elements from mechanical damage,
• facilitates access to the jack and service tools.

By maintaining the original mounting geometry, the bolt supports the correct arrangement of the entire spare wheel assembly, which is important for both user comfort and operational safety.

Compatibility and Technical Specifications

This component comes from the Audi range, meaning it retains the correct thread profile, working length, and head shape, all matched to the factory recess in the trunk. This ensures predictable installation without the need for modifications to other components. The bolt works with the factory spare wheel mounting system, providing:

• appropriate clamping force to the trunk floor,
• correct positioning of the spare wheel rim,
• compatibility with original components from the Jacks & Tool Kits category.

Its placement in the rear of the vehicle allows for easy access during wheel changes, and the bolt's design enables quick loosening and re-fastening, even in roadside conditions.

Condition of the Component and Usability Aspects

The offered bolt is a used original part, which in practice means it retains factory mounting parameters at a more favorable cost compared to new replacements. Such a component, if free from damage to the threads and head, can be successfully used for a long time, ensuring:

• secure fastening of the spare wheel in the trunk,
• compliance with the original mounting standard for Audi A3 8P,
• the possibility of directly replacing a worn or missing bolt.

Choosing a used original part is a sensible solution when the existing bolt has been damaged, lost, or no longer provides adequate wheel clamping.

Why Use a Dedicated Securing Bolt

Using the correct securing bolt in an Audi A3 8P is important not only for comfort but also for safety. A properly selected component:

• eliminates play in the spare wheel during driving,
• prevents uncontrolled movement of the heavy wheel during sudden braking,
• maintains order in the cargo space, facilitating access to tools,
• allows for the preservation of the original equipment layout designed by the manufacturer.

For drivers who care about the technical completeness of their vehicle, replacing a missing or faulty bolt with a part that matches the factory standard is a simple way to restore the full functionality of the spare wheel mounting system.

Completing Spare Wheel Related Equipment

If you are assembling a complete spare wheel kit for your Audi and also need other emergency service-related items such as jacks or service tools, check the available parts in the Audi Jacks & Tool Kits category.

For drivers interested in a broader approach to vehicle operation and repair, including informed choices about used parts, a practical guide may be helpful – find more information in the article When is it Worth Replacing an Alternator with a Used One: A Practical Guide for Drivers.