Centric 320.61099F Disc Brake Rotor - Rear

Centric GCX Rear Brake Rotor for Focus

The Centric GCX Elemental Protection Disc Brake Rotor, part number 320.61099F, is built for rear brake service on select Ford Focus models. It combines OE-style fitment with a fully coated finish to help resist rust on exposed surfaces while maintaining the braking surface needed for consistent contact.

• Fits 2012-2018 Ford Focus, rear
• Part number 320.61099F for easy identification
• Fully coated disc finish with coated hat for corrosion resistance on non-mating surfaces
• Solid rotor design with smooth surface type
• Outside diameter: 10.657 in. / 270.700 mm
• Nominal thickness: 0.429 in. / 10.900 mm
• Discard thickness: 0.354 in. / 9.000 mm
• 5-lug pattern with 108.000 mm bolt circle and 2.500 in. center hole

GCX Full Coating Details

Centric’s GCX Full Coating line is engineered to match OE performance while adding protection against rust and corrosion on the rotor hat and other non-mating surfaces. The GCX application-specific approach uses coating patterns and metallurgy selected to align with brake pad friction type and OEM-style rotor requirements. For Ford Focus rear brake service, 320.61099F provides a direct replacement format with the dimensions and mounting layout needed for proper fit.

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

Common Reasons to Replace

• Rear brake pulsation from rotor wear or thickness variation
• Rust buildup on exposed rotor surfaces
• Noise caused by uneven braking contact
• Reduced braking consistency from worn rear rotors
• Service replacement for a Ford Focus rear brake job

Installation Notes

Verify rotor dimensions, hub fit, and lug pattern before installation. Clean the hub mounting surface thoroughly so the rotor seats flat, and inspect pads and caliper hardware for wear before reassembly. After installation, follow the brake pad manufacturer’s bedding procedure for proper break-in.

Quality Assurance

Centric designs GCX rotors to match OE performance targets and uses advanced RS200 coating on non-mating surfaces for added corrosion protection. The brand’s application-specific metallurgy and coating strategy are intended to deliver consistent fit and long service life on covered vehicles.