Centric 320.45086F Disc Brake Rotor - Front

Centric GCX Front Brake Rotor for Mazda

The Centric GCX Elemental Protection Disc Brake Rotor - Full Coating, part number 320.45086F, is a front vented rotor built for select Mazda applications. It combines a fully coated disc finish with a coated hat to help resist corrosion on exposed brake surfaces while maintaining a smooth braking surface.

Key Features

• Part number 320.45086F
• Fully coated disc finish with coated hat finish
• Vented rotor design with straight vanes
• Smooth surface type for consistent pad contact
• Outside diameter: 11.606 in. / 294.800 mm
• Nominal thickness: 0.984 in. / 25.000 mm
• Discard thickness: 0.906 in. / 23.000 mm
• 5-lug pattern with 4.500 in. bolt circle diameter
• Center hole diameter: 2.681 in. / 68.100 mm

Product Details

Centric GCX Elemental Protection Disc Brake Rotors are built for drivers who want a corrosion-resistant rotor finish without changing the original brake layout. This rotor uses a floating disc mounting design, a 50-vane OEM vane count, and a vented construction to support heat management during repeated braking. The Centric GCX line focuses on protective coatings across the disc and hat areas, making it a practical choice for front brake service on Mazda CX-3 and Mazda 3 platforms.

Compatible With 2016-2022 Mazda CX-3, front; 2014-2018 Mazda 3, front; and 2014-2016 Mazda 3 Sport, front. This part number, 320.45086F, is also a direct search match for shoppers looking for a front brake rotor for Mazda CX-3 or Mazda 3 295mm front disc applications.

Common Brake Service Issues

• Front brake pulsation caused by rotor wear or thickness variation
• Corrosion on exposed rotor surfaces and hat area
• Brake noise related to uneven rotor contact surfaces
• Reduced braking consistency from overheated or worn front rotors
• Service replacement for a damaged or out-of-spec front disc rotor

Installation Notes

Verify rotor diameter, center hole, bolt circle, and thickness before installation. This rotor is for front axle use only and does not include bearings or an ABS tone ring. Inspect pads, calipers, and hub surfaces during brake service, and clean the hub face thoroughly to help prevent runout-related concerns. Confirm vehicle-specific fitment for Mazda CX-3 and Mazda 3 models before ordering.

Quality Assurance

Centric GCX rotors are engineered with protective coatings and OE-style dimensions to support consistent fitment and corrosion resistance in everyday brake service. Part number 320.45086F is specified for select Mazda front brake applications and follows the listed dimensional requirements for the platform.