Seat Leon Cupra 1P Brake Caliper Housing ATE Red Front Left N/S 1K0615123N

Seat Leon Cupra 1P Brake Caliper Housing ATE Red Front Left N/S is an original braking system component designed for installation on the driver's side of the front axle. Thanks to its ATE construction and sporty red finish, it provides a solid foundation for maintaining stable, predictable braking power in a dynamically driven Leon Cupra.

Specifications and technical data

• SKU: 1K0615123N
• Mark: Seat
• Condition: Used
• OEM Part Number: 1K0615123N
• Substitutable numbers: 1K0615123N, 1K0 615 123 N
• Location on the vehicle: Front, Left
• Category: Calipers & Brackets

Purpose and vehicle placement

The presented caliper is dedicated for installation on the front axle on the left side, which is crucial for the correct routing of brake lines, bleeders, and mounting geometry. Using the correct caliper on the appropriate side of the vehicle ensures even operation of the entire system and facilitates maintenance.

The ATE version in a red finish is characteristic of the Cupra variant, allowing you to maintain technical and visual consistency with the factory configuration of the car. This solution is particularly important for post-collision repairs or restoring the car to its original specification.

Construction and technical characteristics

The caliper housing has been designed for stable brake pad guidance and effective heat dissipation from the disc. The ATE construction ensures:

• precise pad guidance in the carrier,
• adequate body rigidity under load,
• adaptation to high loads typical for the Cupra version.

The red finish serves not only an aesthetic function but also facilitates quick identification of the component during inspections and service. The design based on OEM solutions allows for maintaining factory braking system performance parameters without the need for modifying mounts or lines.

Benefits of using an original ATE caliper

Using an original caliper housing in a Leon Cupra translates into a number of practical benefits:

• Compatibility with the factory system – maintaining original mounting geometry and cooperation with other brake components.
• Stable braking power – proper pressure distribution on the pads and repeatable operating characteristics.
• Easier diagnostics and service – mechanics are familiar with ATE solutions, which speeds up maintenance and reduces the risk of installation errors.
• Visual consistency – the red caliper blends well with the character of the Cupra version, emphasizing the car's sporty nature.

Condition and use in service practice

The item comes from the Brake calipers and carriers group and is intended for users who want to cost-effectively restore full efficiency to the braking system while maintaining the manufacturer's original specification. A used caliper provides a good base for further service – cleaning, replacing seals, or preparing for painting, in accordance with workshop procedures.

Before installation, standard verification in a workshop is recommended (tightness, condition of guides, threads, and mating surfaces) so that the braking system in the Leon Cupra operates safely and predictably across the full range of loads.

Safe selection of used braking system components

When choosing a used caliper, it is worth being guided not only by model fitment but also by the technical condition inspection procedure. A detailed list of steps – from assessing corrosion and checking threads to selecting compatible pads and discs – can be found in the article: Second-hand braking system: how to safely select discs, calipers, and ABS?

If you are planning a comprehensive repair or upgrade of the braking zone in your Seat and need other components from the same group, such as additional calipers, carriers, or mounting brackets, check the available parts in the Seat Brake calipers and carriers category.