Mercedes G 500 463 II brake system brakes brake 355/350 calipers

Mercedes-Benz G 500 (W463A / W463 II)—the redesign produced from 2018 to present—the 354mm/350mm braking system is the standard high-performance setup for the non-AMG models. This system provides a balance between the massive 6-piston AMG units and the basic systems found on older generations.

System Specifications

This setup is designed to handle the 2.5-ton curb weight of the G 500 while maintaining a firm pedal feel.

• Front Axle: 4-Piston Fixed Calipers with 354mm x 32mm Vented Discs.

• Rear Axle: Single-Piston Floating Calipers with 350mm x 24mm Vented Discs.

• Parking Brake: Integrated Electronic Parking Brake (EPB) on the rear calipers.

Component Breakdown & Part Numbers

For your inventory at Buy Mustang parts Ltd, these are the common part numbers associated with this specific 354/350 setup:

Technical Inventory Notes

• Caliper Finish: On the G 500, these calipers are typically finished in Silver or Grey with “Mercedes-Benz” lettering on the front. They are distinct from the Red/Silver 6-piston calipers found on the G 63.

• Wheel Clearance: This 354mm system requires at least an 18-inch wheel for clearance. If a customer is looking to “downsize” wheels for off-road tires, this is the largest brake kit that will still allow for most 18″ rim fitments.

• Service Requirement: Because the rear calipers are electronic, they require a diagnostic tool to be put into “Service Mode” to retract the piston for pad replacement. Forcing them manually will damage the internal motor.

Business & Shipping Advice

• Weight: These calipers are cast iron and extremely heavy (the fronts are approx. 7–8kg each). When shipping as a kit, ensure the rotors are boxed separately from the calipers to prevent the heavy discs from crushing the caliper seals or bleed screws during transit.

• Cross-Compatibility: While these are the standard for the G 500 / G 550, they are also frequently sought after by owners of the G 350d and G 400d as a “factory plus” upgrade for improved towing performance.