Centric 320.45046F Disc Brake Rotor - Rear

Centric GCX Rear Brake Rotor for Mazda MPV and 929

The Centric GCX Elemental Protection Disc Brake Rotor, part number 320.45046F, is a rear vented rotor built for specific Mazda applications. It features a fully coated disc finish and coated hat finish to help resist corrosion on exposed surfaces while maintaining a smooth braking surface.

Key Features

• Part number 320.45046F
• Fully coated disc finish with coated hat finish
• Vented rotor design with straight vane style
• Smooth surface type for consistent pad contact
• Outside diameter: 11.248 in. / 285.700 mm
• Nominal thickness: 0.709 in. / 18.000 mm
• Discard thickness: 0.630 in. / 16.000 mm
• 5-lug bolt pattern with 4.500 in. / 114.300 mm bolt circle
• Center hole diameter: 2.835 in. / 72.000 mm
• Rear position fitment for Mazda MPV and Mazda 929

Product Details

Centric GCX Elemental Protection Disc Brake Rotors are built around corrosion protection and OE-style fitment details. This rotor uses a floating / DIH disc mounting design, a straight vane vented construction, and a coated hat to support long-term durability in rear brake service. The 320.45046F is listed for 2004-2006 Mazda MPV rear, 1993-1998 Mazda MPV rear, and 1992-1995 Mazda 929 rear applications. If you are searching for a rear brake rotor for Mazda MPV or Mazda 929 models, this Centric rotor matches the specified dimensions and mounting layout.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Rear brake pulsation caused by worn rotor surfaces
• Corrosion on exposed rotor and hat areas
• Brake noise related to uneven rotor finish
• Reduced pad contact from rotor wear beyond discard thickness
• Fitment issues when replacing a rear rotor on Mazda MPV or Mazda 929

Installation Notes and Tips

Verify rotor dimensions, hub fit, and bolt pattern before installation. This rotor does not include bearings or an ABS tone ring. Confirm rear application, center hole diameter, and overall height against the vehicle’s brake specifications before service. For best results, inspect pads, caliper hardware, and hub condition during rotor replacement.

Quality Assurance

Centric GCX Elemental Protection rotors are engineered with coated surfaces and application-specific dimensions to support consistent brake service on listed Mazda rear applications. Part number 320.45046F is specified for 2004-2006 Mazda MPV, 1993-1998 Mazda MPV, and 1992-1995 Mazda 929 rear brake replacement.