Brake Caliper BMW X3 F25 X4 F26 Rear Braking Housing Right O/S 42/20 6791018

BMW X3 F25 X4 F26 Rear Right Brake Caliper 42/20 is an original part from the brake calipers and brackets category, designed for the rear right axle in BMW vehicles. The used caliper ensures a factory fit, maintaining the correct brake system geometry and stable operating parameters. This is a solution for drivers who want to restore proper braking effectiveness while keeping service costs reasonable.

Specifications and technical data

• SKU: 6791018
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6791018
• Substitutable numbers: 6791018, 34216791018
• Location on the vehicle: Rear, Right
• Category: Calipers & Brackets

Application and Fitment for BMW X3 F25 / X4 F26

The presented caliper has been specifically designed for BMW X3 F25 and BMW X4 F26 models, intended for the rear right side of the vehicle. This ensures correct mounting points, proper positioning relative to the disc, and compatibility with factory brake hardware.

Choosing an original caliper for a specific axle and side of the car minimizes the risk of installation problems, uneven pad wear, or incorrect piston operation. This is particularly important in BMW vehicles, where the braking system is precisely tuned with safety systems.

Technical Specifications and Caliper Design

The designation 42/20 refers to the caliper's design characteristics, including the piston used and its working geometry. In practice, this translates to:

• appropriately selected pad clamping force against the disc,
• stable operation under typical road conditions,
• consistency with the factory braking force balance between axles.

As an original BMW part, the caliper maintains the correct mounting bolt spacing, brake fluid flow channels, and a design adapted to the vehicle's standard system. This allows for installation without modifications and preserves the manufacturer's intended operating parameters.

Benefits of Using an Original, Used Brake Caliper

Using a used brake caliper in good technical condition offers a sensible compromise between cost and quality. With this part, you gain:

• factory fit for BMW – no need for adaptation or modification of mounting points,
• preservation of the manufacturer's intended rear axle braking characteristics,
• the possibility of economical brake system repair without sacrificing OEM parts.

A used caliper can also be a good base for potential refurbishment if you decide to refresh the entire braking system in the future.

Professional Selection and Brake System Safety

When replacing a caliper, it's important not only to ensure it fits the car model but also to perform correct installation, system bleeding, and inspection of other components (discs, pads, lines). It's advisable to use parts with clearly defined origin and specifications, which facilitates subsequent servicing and diagnostics.

If you want to verify step-by-step what to look for when buying used brake components, check out our guide: Used Brake System: How to Safely Choose Discs, Calipers, and ABS?. This is a practical checklist that will help you assess the condition of components and make an informed purchasing decision.

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. Using filters by model and generation, you can easily narrow down the results to elements that fit your specific vehicle.