Centric 120.45072 Disc Brake Rotor - Rear

Centric Premium Rear Brake Rotor

Centric Premium Disc Brake Rotor 120.45072 is built for rear brake service on the 2004-2011 Mazda RX-8. It combines a smooth braking surface with a coated hat and corrosion-resistant electrocoating to help maintain appearance and performance in wet or salty conditions.

Centric Premium Disc Brake Rotors are engineered for drivers who want a direct-fit replacement rotor with protection that lasts beyond storage and shipping. The E-coating finish is designed to resist rust after installation, making this rotor a practical choice for Mazda RX-8 rear brake repair.

Key Features

• Part number 120.45072
• Fits 2004-2011 Mazda RX-8, rear
• Vented rotor design with straight vanes
• Smooth surface type for consistent pad contact
• Coated hat finish for added corrosion resistance
• 5-bolt hole pattern with 114.3 mm bolt circle
• Outside diameter: 301 mm (11.850 in.)
• Nominal thickness: 18.2 mm; discard thickness: 16 mm
• Center hole diameter: 72 mm
• Overall height: 44.2 mm

Detailed Description

Centric Premium Disc Brake Rotors are part of the Centric Premium Disc Brake Rotors line, which focuses on replacement rotors with corrosion protection built into the finish. This rotor uses an electrocoated surface rather than a basic phosphate coating, helping protect exposed metal from rust after installation. For rear brake service on the Mazda RX-8, part number 120.45072 provides the dimensions and mounting layout needed for a direct replacement application.

This rotor cross-references Raybestos Brakes 980522 for the same application.

What This Rotor Helps Address

• Rear brake pulsation caused by worn rotor surfaces
• Rust buildup on exposed rotor areas
• Uneven pad contact from a scored braking surface
• Brake noise related to rotor wear or surface damage
• Loss of braking consistency from rotor thickness wear

Installation Notes and Tips

Verify rotor dimensions, hub bore, and bolt pattern before installation on the Mazda RX-8. Clean the hub mounting surface thoroughly to reduce runout concerns, and inspect pads and caliper hardware during brake service. Follow the vehicle manufacturer’s torque specifications and bed in new pads according to the pad maker’s procedure.

Quality Assurance

Centric uses an electrocoating finish designed to withstand extended salt-water exposure and provide long-lasting corrosion protection. The coated finish is intended to help the rotor resist rust after installation, especially in environments where heat and moisture can quickly degrade lesser coatings.