BMW F20 F21 F30 F31 Rear Left N/S Brake Caliper Housing Carrier 6850857

BMW F20 F21 F30 F31 Rear Left Brake Caliper is a component from the brake calipers and brackets category, designed for the rear left axle in selected BMW F-series models. A used, original caliper ensures proper brake system operation and maintains the vehicle's factory driving parameters. This is a solution for drivers who want to cost-effectively restore full brake functionality while adhering to manufacturer specifications.

Specifications and technical data

• SKU: 6850857
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6850857
• Substitutable numbers: 6850857, 34216850857, 6850860, 34216850860
• Location on the vehicle: Rear, Left
• Category: Calipers & Brackets

Vehicle Application and Placement

The presented brake caliper is intended for installation on the rear left side of the vehicle. It is responsible for evenly pressing the pads against the disc, stabilizing braking force on the rear axle, and supporting the vehicle's safety systems. Using the correct caliper on the appropriate side of the car is crucial for the proper geometry of the braking system and even wear of friction components.

Technical Characteristics of the Caliper

The caliper belongs to the brake calipers and brackets group, meaning it is an integral part of the mechanism responsible for transferring hydraulic pressure to the brake disc. The design intended for BMW F20, F21, F30, and F31 platforms ensures:

• proper fitment to the caliper carrier and hub in dedicated models,
• compatibility with the factory brake line system,
• maintenance of stock braking force characteristics on the rear axle.

This allows for predictable installation for the mechanic, and after proper brake bleeding, it is possible to restore the brakes' stock operating parameters.

Benefits of Using an Original BMW Caliper

Choosing an original, used brake caliper for BMW helps maintain the structural integrity of the entire system. The most significant advantages include:

• factory fitment to the steering knuckle, disc, and brake pads in the specific BMW generation,
• compatibility with the operating parameters of the stock master cylinder and brake lines,
• the possibility of economical system repair while maintaining original specifications.

This solution is particularly beneficial for post-accident repairs or when replacing a worn caliper, where maintaining the stock driving characteristics and braking effectiveness is a priority.

Selection, Safety, and Compatibility Verification

Before purchasing, it is advisable to verify the caliper's compatibility with the specific engine version and year of your F-series BMW, using the OEM part number and interchangeable numbers available in the technical specifications. This helps avoid installation issues and ensures correct system operation. If you want a step-by-step guide on what to look for when choosing a used brake component, the following guide will be helpful: how to safely select used discs, calipers, and ABS components for your car.

Other BMW Brake Calipers and Brackets

If you are also looking for other BMW brake calipers and brackets for your car, check out our dedicated offer: BMW brake calipers and brackets. There you will find a wide selection of original components that will allow you to comprehensively renovate the braking system in your car.

For drivers interested in a broader approach to operating Bavarian models using original aftermarket parts, we have also prepared material: original used BMW parts and their durability and driving precision, which describes the principles of selecting components by OEM numbers and practical application examples.