Brembo 08.6857.10 Disc Brake Rotor - Rear

Brembo Rear Rotor for Mazda and Ford

The Brembo 08.6857.10 is a premium OE equivalent rear disc brake rotor built for direct replacement on select Mazda, Ford, and Mercury applications. It uses grey cast iron construction and a UV-coated surface to help protect the braking plate surfaces while supporting consistent braking performance.

Compatible With 1990-2005 Mazda Miata, Mazda Protege, Mazda 323, Mazda MX-3, Ford Escort, and Mercury Tracer rear brake applications, this rotor is engineered to meet or exceed OEM specifications. The Brembo 08.6857.10 is a solid rear rotor with a 250 mm outside diameter, 55 mm centering diameter, 34.5 mm height, and 4-hole bolt pattern.

Key Features

• Grey cast iron construction for stable braking performance
• UV-coated surface for added protection on disc and braking plate surfaces
• Solid rotor design for rear brake applications
• 250 mm outside diameter, 55 mm centering diameter, 34.5 mm height
• Minimum thickness: 8 mm; nominal thickness: 9 mm
• 4-hole mounting pattern with 103 Nm torque specification
• Intelligent marking location shows part number and minimum thickness

Product Details

Brembo’s Premium OE Equivalent Rotor line focuses on direct-fit replacement parts that follow OEM-level specifications for fit and function. This rotor is built for rear brake service on Mazda Miata, Mazda Protege, Mazda 323, Mazda MX-3, Ford Escort, and Mercury Tracer models listed in the fitment data. Brembo 08.6857.10 is also referenced by cross numbers such as Centric Parts 120.45041 and DuraGo BR5485 for the same application.

For braking system refreshes, replace rotors and pads together to restore braking performance. Brembo recommends pairing this rotor with NAO/Ceramic or Low Met brake pad formulations for balanced stopping characteristics.

What It Helps Address

• Brake pulsation from worn rear rotors
• Noise and vibration caused by rotor wear or uneven surfaces
• Reduced braking consistency from heat-affected rotor surfaces
• Service needs on rear brake systems for Mazda Miata and Ford Escort applications
• Replacement of rotors that have reached minimum thickness

Installation Notes

Verify rotor dimensions, bolt pattern, and minimum thickness before installation. Clean the hub mounting surface thoroughly to support proper rotor seating and reduce runout concerns. Follow the vehicle service manual for torque procedures and confirm the 103 Nm torque specification where applicable. Because this rotor is a rear application, confirm the correct axle position before ordering.

Quality Assurance

Brembo manufactures this rotor as a direct replacement part intended to meet or exceed OEM specifications. The UV-coated finish is solvent free, and the rotor includes intelligent wear marking locations for easier inspection during service.