Audi A4 B7 Rear Axle Subframe Support Frame Bolt Nut SET X2 N90981302

Audi A4 B7 Rear Axle Subframe Support Frame Bolt Nut SET X2 is a precision mounting kit designed for the rear body section, dedicated to Audi vehicles. The set provides a functional solution for work involving the rear axle subframe, ensuring a stable structural connection and proper load transfer. By adhering to the manufacturer's specifications, this component is particularly useful for structural repairs and professional suspension geometry adjustments.

Specifications and technical data

• SKU: N90981302
• Mark: Audi
• Condition: Used
• OEM Part Number: N90981302
• Substitutable numbers: N90981302, N90 981 302
• Location on the vehicle: Rear
• Category: Frame Rails & Subframes

Application in the rear of the vehicle

The presented bolt and nut set is designed for use in the rear axle area, where secure mounting of the subframe to the body is critical. Placement in the rear zone of the vehicle requires components with appropriately selected geometry and strength properties to effectively transfer forces resulting from suspension operation, braking, and operational loads.

In workshop practice, this type of kit is used, among others, for:

• replacement or removal of the rear axle subframe,
• structural repairs in the area of suspension mounts,
• regeneration of load-bearing body elements after collisions,
• geometry checks and corrections requiring reassembly of the subframe.

Technical characteristics and construction group

The set belongs to the Longitudinal body frame parts and supports group, which means it works with elements responsible for the stiffness and stability of the vehicle's structure. The bolt and nut act as a connector between the subframe and the body structure, influencing the maintenance of proper rear axle geometry and even load distribution.

The most important functional features of this kit include:

• dedicated design for use in the rear of the vehicle,
• completeness – bolt and nut selected as an X2 set,
• adaptation for use with the rear axle subframe,
• maintenance of mounting parameters consistent with solutions used by the manufacturer.

Brand, condition, and service purpose

The kit is intended for Audi vehicles, which facilitates the selection of parts based on the specific model and body version. The product comes from the segment of used components, making it a reasonable choice for economic repairs, post-accident services, and restoring suspension efficiency without the need to reach for new elements.

In workshop applications, such a set will work well both for individual repairs and for larger renovation projects where the replacement of several subframe mounting points is required. The used nature of the part allows for cost optimization while maintaining functionality consistent with operational requirements.

Benefits of using a dedicated set

Using a complete bolt and nut set within a single reference simplifies the selection and assembly process, reducing the risk of improper fitment with other rear axle components. For the mechanic, this means more efficient work, and for the vehicle owner – more stable handling and predictable car behavior under road conditions.

The main practical advantages include:

• consistency of the elements included in the set,
• possibility of use in typical rear axle service procedures,
• easier maintenance of correct suspension geometry after subframe removal,
• compatibility with the body structure intended for this group of mounts.

If you are planning a comprehensive repair or modernization of the rear load-bearing zone in your Audi and need other elements from the same group, such as additional bolts, supports, or subframe mounts, check the available parts in the Audi longitudinal body frame parts and supports category.

Substantive support and part selection

When planning repairs within the subframe and rear axle suspension, it is worth using current knowledge about operation and component selection. For users interested in comparing engines and the impact of design on service costs, comparative material regarding another brand's engines may be useful – you will find it in the article BMW N47 vs M57 / M57N / M57N2 – ranking of legendary diesels, which shows how analyzing durability and parts costs helps in making informed service decisions.

If you want to deepen your knowledge on safely purchasing components from the secondary market, including fasteners and structural elements, you will find practical tips in the guide Safe purchase of used car parts online – a step-by-step guide, describing the process of verifying parts, selection by manufacturer markings, and the principles of conscious selection of used subassemblies step by step.