Centric 320.44138F Disc Brake Rotor - Front Left

Overview of Centric GCX Elemental Protection Disc Brake Rotors

The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating provide reliable braking performance for Lexus GS350, GS430, GS450h, GS460, IS200t, IS300, and IS350 models. Designed with a fully coated disc and hat finish, these rotors help resist corrosion and extend service life under various driving conditions.

• Part Number: 320.44138F
• Fully coated disc and hat finish for enhanced corrosion resistance
• Vented rotor design with curved vanes for improved heat dissipation
• Nominal thickness: 1.173 inches (29.8 mm); discard thickness: 1.063 inches (27.0 mm)
• Outside diameter: 13.150 inches (334.0 mm)
• Overall height: 2.000 inches (50.8 mm)
• Floating disc mounting for better rotor alignment
• 5 lug holes with 0.571 inch (14.5 mm) diameter and 4.5 inch (114.3 mm) bolt circle diameter
• Smooth surface finish optimized for consistent pad contact

Product Line Details: Centric GCX Elemental Protection

The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating line focuses on providing rotors with a full protective coating to combat rust and corrosion. This coating extends the rotor's lifespan and maintains braking efficiency, especially in environments prone to moisture and road salt. The full coating on both the disc and hat surfaces ensures comprehensive protection without compromising performance.

Technical Specifications and Features

This vented disc brake rotor features curved vanes that enhance airflow and heat dissipation, reducing the risk of brake fade during extended use. The rotor's nominal thickness of 1.173 inches (29.8 mm) and discard thickness of 1.063 inches (27.0 mm) provide clear service limits for maintenance. The floating disc mounting design allows for slight movement to improve rotor alignment and reduce uneven wear. With an outside diameter of 13.150 inches (334.0 mm) and an overall height of 2.000 inches (50.8 mm), this rotor is engineered to meet the exact specifications required for compatible Lexus models.

Compatible Vehicles and Applications

• Designed specifically for Lexus GS350, GS430, GS450h, GS460, IS200t, IS300, and IS350
• Ideal for replacing worn or damaged rotors to restore braking performance
• Addresses issues such as rotor corrosion, uneven wear, and brake noise
• Helps resolve brake fade caused by overheating during heavy braking
• Suitable for vehicles experiencing vibration or pulsation during braking

Installation Notes and Tips

Ensure the rotor surface is clean and free of contaminants before installation. Verify that the rotor thickness is within the nominal range and above the discard thickness to maintain safety. Use proper torque specifications for lug nuts and mounting bolts to avoid rotor warping. Since this rotor does not include bearings or ABS tone rings, reuse existing components or source separately as needed. It is recommended to inspect brake pads and related hardware during rotor replacement for optimal braking system performance.

Quality Assurance and Warranty

Centric rotors are manufactured to meet or exceed OEM specifications, ensuring reliable fit and function. The full coating process provides added protection against corrosion, contributing to longer rotor life. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Consult product documentation or manufacturer resources for complete warranty information.