Seat Altea XL Rear Wheel Hub Bearing Knuckle Plate Left N/S 1K0505435AE

Seat Altea XL Rear Wheel Hub Bearing Knuckle Plate Left N/S is a component from the Wheel bearings, hubs and bushings group, designed for the rear axle and engineered for stable handling and precise wheel guidance. This used, original construction ensures proper transfer of loads from the suspension to the chassis and maintains the factory geometry of the running gear.

Specifications and technical data

• SKU: 1K0505435AE
• Mark: Seat
• Condition: Used
• OEM Part Number: 1K0505435AE
• Substitutable numbers: 1K0505435AE, 1K0 505 435 AE
• Location on the vehicle: Rear, Left
• Category: Wheel Bearings, Hubs & Seals

Purpose and vehicle placement

The presented knuckle with hub is designed for installation on the rear axle, on the left side, in the Seat Altea XL model. Its placement in the rear suspension area means the component is responsible for:

• guiding the wheel relative to the body in the vertical and horizontal axes,
• maintaining the correct position of the hub relative to the bearing and control arms,
• stable transfer of forces generated during acceleration, braking, and cornering.

By maintaining factory suspension geometry, the knuckle helps ensure predictable vehicle behavior, even tire wear, and proper interaction with traction control and electronic stability systems.

Construction and function of the knuckle and hub assembly

The knuckle integrated with the hub forms a rigid structural node to which suspension components and the wheel are attached. In practice, this means that:

• the hub serves as the central mounting point for the wheel and works in conjunction with the bearing,
• the knuckle body provides appropriate mounting points for control arms and any additional suspension elements,
• the assembly creates a stable, load-resistant system that transfers forces from the road surface to the chassis.

This solution allows for maintaining the integrity of the rear suspension structure, which translates into confident vehicle handling and predictable reactions to steering inputs and load changes.

Benefits of using an original used component

Choosing a used knuckle with hub for the Seat Altea XL is a reasonable compromise between cost and maintaining factory specifications. An original component from this group:

• maintains correct suspension mounting points,
• allows for proper adjustment of wheel alignment and camber angles,
• reduces the risk of fitment issues compared to aftermarket parts of uncertain origin.

For many users, it is also important that using an original knuckle with hub helps restore the vehicle's original driving characteristics after a collision, mechanical damage, or wear of suspension components.

Condition, verification, and selection of used parts

The item comes from the used parts group, which allows for a significant reduction in the cost of rear suspension repair while maintaining a construction consistent with the manufacturer's design. Before installation, a standard workshop inspection is recommended, including an assessment of mounting surfaces, bearing seats, and control arm connection points.

If you want to learn more about the specifics of the second-hand parts market, debunk popular myths, and consciously choose components for your car, it is worth checking out our educational material – see the article Used car parts: Myths and facts you need to know, which explains in an accessible way what to look for when purchasing such items.

Expansion and modernization of the Seat rear suspension

If you are planning a comprehensive repair or modernization of the rear suspension area in your Seat and need other elements from the same group, such as additional hubs, wheel bearings, or mounting bushings, check out the available parts in the Seat wheel bearings, hubs and bushings category.

This allows you to replace several related components in a single service stage, which facilitates subsequent geometry alignment and reduces the need for repeated workshop visits.