BMW E60 E63 E64 Rear Left N/S Brake Caliper Carrier 42/20 6766074 6758057

BMW E60 E63 E64 Rear Left N/S Brake Caliper Carrier is an original component from the Brake calipers and carriers group, designed for the rear left axle of BMW E63 and E64 series vehicles. This used caliper provides a solid foundation for professional brake system repair, ensuring proper pad guidance and stable piston operation under daily driving conditions.

Specifications and technical data

• SKU: 6758057
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6758057
• Substitutable numbers: 34216766074, 6766074, 42/20, 789, 34216758057, 6758057
• Location on the vehicle: Rear, Left
• Category: Calipers & Brackets

Purpose and vehicle placement

The presented caliper is dedicated for installation on the rear left side, which is crucial for the correct distribution of braking force in the BMW E63/E64. Proper placement on the vehicle reduces the risk of uneven wear of pads and discs, and supports vehicle stability during intensive braking.

Thanks to its precise fit to the suspension and hub design, the caliper works with the factory brake system geometry, which facilitates installation and allows for maintaining the factory performance parameters of the entire system.

Technical characteristics of the caliper

The brake caliper has been designed as a hydraulic component working with the BMW brake system, responsible for evenly pressing the pads against the disc. The 42/20 designation refers to the specific structural configuration, selected for the weight and performance of the E63/E64 models.

The construction of the caliper ensures:

• stable guidance of brake pads in the carrier,
• adequate body rigidity under hydraulic load,
• serviceability (replacement of seals, guide pins, pads),
• compatibility with the factory brake line and mounting hardware.

Benefits of using an original BMW caliper

Using an original BMW brake caliper instead of a worn or damaged part allows for maintaining the consistency of the entire braking system. A design consistent with factory specifications translates into:

• repeatable braking performance at various speeds and loads,
• proper cooperation with vehicle safety systems,
• easier diagnostics and service in the future,
• reduced risk of incorrect installation due to the fitment for a specific axle and side of the vehicle.

For users who prioritize maintaining the factory handling and braking characteristics, such a caliper is a reasonable choice in terms of technical and operational aspects.

Condition, verification, and practical application

The item is offered as a used BMW brake caliper, which allows for optimizing repair costs while maintaining the original design. This type of component is particularly attractive for comprehensive rear axle service work, when it is necessary to replace several brake system components at once.

To better prepare for purchasing used brake system components, it is worth using the practical tips included in the article: Second-hand brake system: how to safely choose discs, calipers, and ABS?. You will find a checklist there that helps assess the condition and suitability of used components in vehicles such as the BMW E63/E64.

Expanding BMW brake system upgrades

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

When making a decision between new and used brake system components, the cost and quality guide may also be helpful: New or used? A comparison of costs and quality of car parts, which discusses the differences between new and used OEM parts in the context of cost-effectiveness and durability.