Centric 320.44123F Disc Brake Rotor - Rear

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 LS430 models. Designed with a fully coated disc and hat finish, these rotors offer enhanced corrosion resistance and durability for long-term use.

• Compatible with Lexus LS430
• Part Number: 320.44123F
• Fully coated disc and hat finish for corrosion protection
• Vented rotor design with straight vane style for heat dissipation
• Nominal thickness: 0.630 inches (16.000 mm)
• Discard thickness: 0.571 inches (14.500 mm)
• Outside diameter: 12.205 inches (310.000 mm)
• Overall height: 2.642 inches (67.100 mm)
• 5 stud/lug holes with 4.500 inch (114.300 mm) bolt circle diameter
• Smooth surface type for consistent braking

Product Line Details

The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating line focuses on providing rotors with a full protective coating to resist rust and corrosion. This coating extends the rotor's service life and maintains a clean appearance, which is especially beneficial for vehicles like the Lexus LS430 that require dependable braking components under various driving conditions.

Technical Description and Specifications

This disc brake rotor features a vented design with straight vanes to improve airflow and heat dissipation during braking, reducing the risk of brake fade. The rotor's nominal thickness is 0.630 inches (16.000 mm), with a discard thickness of 0.571 inches (14.500 mm), ensuring safe replacement intervals. The rotor measures 12.205 inches (310.000 mm) in outside diameter and has an overall height of 2.642 inches (67.100 mm). The hat and disc are fully coated to protect against environmental elements, while the smooth surface finish supports consistent pad contact and braking performance. The rotor mounts using a 5-lug pattern with a 4.500 inch (114.300 mm) bolt circle diameter, compatible with the Lexus LS430's specifications.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Lexus LS430
• Addresses rotor corrosion and rust issues through full coating
• Improves heat dissipation to reduce brake fade during heavy use
• Restores smooth braking performance by replacing scored or uneven rotors
• Maintains proper rotor thickness for safe braking operation

Installation Notes and Tips

Ensure the rotor thickness is measured before installation to confirm it is above the discard thickness of 0.571 inches (14.500 mm). Clean the hub surface before mounting the rotor to prevent runout. Use proper torque specifications for the 5 lug nuts on the 4.500 inch (114.300 mm) bolt circle. This rotor does not include bearings or an ABS tone ring, so verify compatibility with your vehicle's braking system. Proper bedding-in of brake pads after installation is recommended for optimal performance.

Quality Assurance and Warranty

Centric rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The full coating process helps protect against corrosion, extending rotor life. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Refer to Centric's official documentation for complete warranty information.