BMW E60 E63 545i 550i 645i Rear Left N/S Brake Caliper Housing

BMW E60 E63 545i 550i 645i Rear Left N/S Brake Caliper Housing is an original component from the Brake calipers and carriers group, designed for the rear left axle of selected high-end BMW models. This used brake caliper provides a functional solution for drivers looking to restore proper braking system performance while maintaining factory geometry and fitment.

Specifications and technical data

• SKU: 6753679
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6753679
• Substitutable numbers: 34216753679, 6753679, 34216753681, 6753681, 34210153505, 0153505, 46/24
• Location on the vehicle: Rear, Left
• Category: Calipers & Brackets

Purpose and compatibility with BMW models

The presented brake caliper is designed for the rear left axle of BMW E60 and E63 series vehicles in 545i, 550i, and 645i engine versions. This means that the design, mounting spacing, and guide geometry comply with the manufacturer's factory requirements, which facilitates installation and ensures the correct operating parameters of the braking system.

By using an original BMW solution, the caliper works with the brake discs and pads intended for these models, ensuring stable pad guidance, even pressure, and consistent performance during intensive braking.

Construction and function of the rear left caliper

As a component mounted on the rear left axle, the caliper is responsible for generating braking force in conjunction with the disc and pads, as well as maintaining the correct position of the pads relative to the working surface. The design is intended for use with the factory BMW hydraulic system, which translates into a predictable brake pedal response.

Key functional features of this component include:

• factory fitment to the hub and carrier in E60 and E63 models,
• stable guidance of brake pads on the rear axle,
• preservation of the original BMW braking system performance characteristics.

As a result, the caliper can be used both for standard replacement of worn components and for repairs following mechanical damage within the rear axle area.

Benefits of using an original BMW caliper

Choosing an original brake caliper for the BMW E60 and E63 allows you to maintain the consistency of the entire braking system according to the manufacturer's specifications. Factory fitment reduces the risk of installation issues, leaks, or uneven pad wear, and also facilitates future maintenance.

A used part from this group is an attractive alternative to new parts, especially in the case of extensive rear axle repairs, where both cost and maintaining the original specification are important. The rear left brake caliper in this configuration allows for an economical yet technically correct reconstruction of the braking system.

Professional selection and safety of use

To fully utilize the potential of this component, it is worth verifying compatibility with the specific equipment version and braking system of your BMW. Catalog data, as well as part numbers and interchangeable numbers available in the product technical specification, are helpful in this regard. Proper selection of the caliper has a direct impact on braking efficiency, rear axle balance, and cooperation with assistance systems such as ABS or traction control.

If you want to learn more about the safe selection of used braking system components, including calipers, discs, and ABS components, check out our guide: Second-hand braking system: how to safely choose discs, calipers, and ABS?

Expansion and modernization of the BMW braking system

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