Centric 320.66026F Disc Brake Rotor - Front

Centric GCX Full-Coated Front Rotor

The Centric GCX Elemental Protection Disc Brake Rotor - Full Coating is engineered to match OE braking performance while adding corrosion resistance on non-mating surfaces. Part number 320.66026F is built for front axle applications that need a vented, smooth-surface rotor with a fully coated finish for long-term appearance and protection.

Fits 1992-2000 Chevrolet K3500, front; Fits 1992-1996 GMC K3500, front; Fits 1994-1999 Dodge Ram 3500, front; Fits 1994-1999 Dodge Ram 2500, front; Fits 1997-2000 Chevrolet K3500, front DRW; Fits 1997 Dodge Ram 2500, front 8800lb GVW, Dana 60 FA; Fits 1994-1996 Dodge Ram 2500, front Dana 60 FA; Fits 1994-1999 Dodge Ram 3500, front solid axle.

Key Features

• Part number 320.66026F from Centric GCX Elemental Protection Disc Brake Rotors - Full Coating
• Fully coated disc finish with coated hat for added rust and corrosion protection
• Vented rotor design with smooth surface type
• Application-specific coating pattern matched to brake pad friction type
• Centric metallurgy aligned to OEM-style carbon alloy profiles
• Outside diameter: 317.3 mm (12.492 in)
• Nominal thickness: 39.100 mm (1.539 in); discard thickness: 37.210 mm (1.465 in)
• 8-bolt mounting pattern, 165.1 mm bolt circle, behind-the-hub mounting

Product Details

Centric GCX rotors are built around vehicle-specific metallurgy and coating strategy to support consistent braking performance and corrosion resistance. This rotor uses a fully coated disc finish and coated hat, which helps protect exposed surfaces from rust while maintaining the braking surfaces needed for proper pad contact. The vented construction and straight vane style support heat management in front brake applications such as Chevrolet K3500, GMC K3500, Dodge Ram 2500, and Dodge Ram 3500 trucks.

Part number 320.66026F is a direct-fit front disc brake rotor for select heavy-duty trucks that require a 317 mm rotor with an 8-lug pattern. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Problems This Rotor Can Address

• Rust buildup on exposed rotor surfaces
• Brake pulsation caused by worn or below-spec rotors
• Reduced braking consistency from heat-stressed front rotors
• Noise or uneven pad contact from damaged rotor surfaces
• Fitment issues when replacing an OE-style front vented rotor

Installation Notes and Tips

Verify rotor diameter, bolt circle, center hole diameter, and front axle configuration before installation. This rotor mounts behind the hub and does not include ABS tone ring or bearings. For best results, inspect pads, calipers, and hub surfaces during replacement, and clean the rotor friction surfaces before service.

Quality Assurance

Centric designs the GCX line to align with OE performance targets while using corrosion-resistant coatings and application-specific metallurgy. Part number 320.66026F is engineered for consistent fitment across the listed Chevrolet, GMC, and Dodge front applications.