Stoptech 128.44184L Disc Brake Rotor - Front Left

StopTech Sport Cross-Drilled Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled Disc Brake Rotor (Part Number 128.44184L) is engineered for Lexus models including GS300, GS350, GS450h, IS200t, IS300, IS350, RC200t, RC300, and RC350. Designed to enhance braking performance, this vented rotor features a cross-drilled surface for improved heat dissipation and consistent stopping power.

• Cross-drilled surface for enhanced cooling and reduced brake fade
• Vented rotor design with curved vanes for efficient heat dissipation
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for improved rotor alignment and performance
• Precision fit with 5 lug holes and 114.3 mm bolt circle diameter
• Nominal thickness of 30.000 mm and discard thickness of 27.000 mm
• Outside diameter of 334 mm (13.150 inches) for exact fitment

Product Line Details: StopTech Sport Cross-Drilled Disc Brake Rotors

The StopTech Sport Cross-Drilled Disc Brake Rotors line is designed to provide enhanced braking performance through advanced rotor surface technology. The cross-drilled pattern improves airflow and heat dissipation, which helps maintain consistent brake feel during aggressive driving or heavy braking conditions. This product line focuses on vented rotors with curved vanes to optimize cooling efficiency, making it suitable for performance-oriented Lexus vehicles such as the GS and IS series.

Technical Specifications and Features

This disc brake rotor features a vented design with curved vanes that promote airflow between the rotor faces, reducing heat buildup during braking. The rotor’s cross-drilled surface further aids in heat dissipation and helps evacuate gases and debris from the pad surface. The coated hat finish provides corrosion resistance, protecting the rotor’s central mounting area. With a nominal thickness of 30.000 mm and a discard thickness of 27.000 mm, the rotor maintains structural integrity and safety throughout its service life. The floating disc mounting system allows slight movement to reduce stress and improve braking consistency. The rotor weighs approximately 11.84 kg (26.1 lbs), balancing durability and performance.

Compatible Vehicles and Applications

• Designed specifically for Lexus GS300, GS350, GS450h models
• Compatible with Lexus IS200t, IS300, IS350 models
• Fits Lexus RC200t, RC300, and RC350 vehicles
• Ideal for drivers seeking improved brake cooling and fade resistance
• Suitable for both daily driving and spirited performance use

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (27.000 mm) before installation
• Verify compatibility with vehicle lug pattern: 5 lug holes, 114.3 mm bolt circle diameter
• Use proper torque specifications for mounting bolts to avoid rotor warping
• Inspect brake pads and calipers during installation for optimal performance
• Clean rotor surface with brake cleaner before installation to remove any protective coatings

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet strict quality standards for fit, finish, and performance. Each rotor undergoes rigorous testing to ensure durability and consistent braking performance. 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 authorized sources for exact warranty terms.