Stoptech 128.44137R Disc Brake Rotor - Front Right

StopTech Sport Cross-Drilled Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled Disc Brake Rotors (Part Number 128.44137R) are engineered for Lexus GS350, GS430, GS450h, GS460, IS200t, IS300, and IS350 models. These rotors provide reliable braking performance with a vented, cross-drilled design that helps maintain optimal temperature during demanding driving conditions.

• Cross-drilled surface for improved heat dissipation and reduced brake fade
• Vented rotor design with curved vanes for enhanced cooling
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for better rotor alignment and performance
• Compatible with Lexus GS and IS series models listed
• Nominal thickness of 1.173 inches (29.8 mm) and discard thickness of 1.063 inches (27.0 mm)
• Overall diameter of 13.15 inches (334 mm) with 5 lug holes on a 4.5 inch (114.3 mm) bolt circle

Detailed Product Description

The StopTech Sport Cross-Drilled Disc Brake Rotors feature a vented design with curved vanes that promote efficient airflow to reduce heat buildup during braking. The cross-drilled surface pattern enhances water and gas evacuation, improving braking consistency under various conditions. The rotor’s hat is coated to protect against rust and corrosion, which helps maintain structural integrity over time. With a floating disc mounting system, these rotors allow slight movement to reduce stress and improve overall braking response. The rotor measures 13.15 inches (334 mm) in outside diameter and has a nominal thickness of 1.173 inches (29.8 mm), with a discard thickness of 1.063 inches (27.0 mm), ensuring compliance with manufacturer specifications for safe operation.

StopTech Sport Cross-Drilled Disc Brake Rotors Product Line

The StopTech Sport Cross-Drilled Disc Brake Rotors line is designed to offer enhanced braking performance for sport and performance-oriented vehicles. This product line focuses on improving heat dissipation and reducing brake fade through cross-drilled surfaces and vented rotor construction. The rotors are engineered to meet the demands of spirited driving while maintaining OEM fitment and reliability, making them suitable for Lexus GS and IS series vehicles requiring upgraded braking components.

Common Applications and Problem Solving

• Reduces brake fade during aggressive or repeated braking
• Improves heat dissipation to prevent rotor warping
• Enhances wet weather braking performance by evacuating water
• Minimizes brake dust buildup on rotor surface
• Prevents corrosion with coated hat finish for longer service life

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (1.063 inches) before installation
• Verify compatibility with Lexus GS350, GS430, GS450h, GS460, IS200t, IS300, and IS350 models
• Use proper torque specifications for 5 lug nuts on 4.5 inch bolt circle
• Inspect brake pads and calipers for wear during rotor replacement
• Follow manufacturer guidelines for bedding-in new rotors

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet strict quality standards for durability and performance. Each rotor undergoes rigorous testing to ensure dimensional accuracy and material integrity. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or StopTech directly for warranty terms related to part number 128.44137R.