Brake Caliper BMW E60 E63 545i 550i 645i Rear Left N/S Brake Unit Housing 46/24

Brake Caliper BMW E60 E63 545i 550i 645i Rear Left N/S Brake Unit Housing is an original brake system component from the Brake calipers and brackets category, designed for installation on the rear left axle. This used caliper provides a functional service solution for drivers looking for a factory-fitted component with stable performance parameters. Thanks to its design compliant with the manufacturer's specifications, it ensures predictable braking system behavior in daily operation.

Specifications and technical data

• SKU: 6753679-1
• 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 fitment

The presented caliper has been designed for use on the rear left side of the vehicle, allowing for precise fitment to the braking system of specific BMW E60 and E63 models with 545i, 550i, and 645i engines. The vehicle placement is clearly defined, which facilitates the selection of the correct part during repairs or the replacement of worn components.

Its original BMW origin ensures the retention of factory mounting geometry, correct guide spacing, and compatibility with standard brake discs and pads intended for these engine versions.

Technical and functional characteristics

The rear left brake caliper in this configuration is constructed as a component working with the hydraulic braking system, responsible for evenly pressing the pads against the disc on the driver's side. The design provides stable operation under conditions typical for premium-class vehicles, ensuring adequate braking force and operational repeatability.

In practice, this means:

• maintaining the correct distribution of braking force between the right and left sides of the rear axle,
• proper cooperation with the vehicle's brake control system,
• the ability to be used in standard service procedures without the need for installation modifications.

Due to its compliance with factory design assumptions, the caliper can be used as a replacement for a worn or damaged part while maintaining predictable system performance parameters.

Condition, origin, and benefits of choosing a used caliper

The item is offered as a used BMW brake caliper, which allows for a significant reduction in repair costs compared to purchasing a new part, while maintaining the original manufacturer's specifications. This type of solution is particularly beneficial for vehicles used on a daily basis, where a reasonable balance between price and functionality is important.

Choosing an original, used caliper from this series offers, among other things:

• factory fitment to the carrier, lines, and other system components,
• reduced risk of installation problems typical of some aftermarket replacements,
• the ability to maintain component consistency within a single axle.

Safe selection of brake system components

When choosing a used brake caliper, it is crucial to pay attention to compatibility with the OEM part number and interchangeable numbers, as well as the correct placement on the vehicle. Proper selection helps avoid installation issues and incorrect brake system operation after repair.

If you want to verify step-by-step what to look for when purchasing used brake components, such as discs, calipers, or ABS parts, check out our guide: Second-hand brake system: how to safely select 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 elements from the same group, such as additional calipers, carriers, or mounting brackets, check out the available parts in the BMW brake calipers and brackets category.

This allows you to select a coherent set of components in one place, which facilitates service and helps maintain uniform performance parameters for the entire braking system.