Stoptech 127.44083R Disc Brake Rotor - Front Right

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor (Part Number 127.44083R) is engineered for Lexus models including GS300, GS400, GS430, IS300, LS400, SC300, SC400, and SC430. Designed to enhance braking performance, this rotor features a vented, slotted, and cross-drilled surface to improve heat dissipation and maintain consistent stopping power.

• Cross-drilled and slotted surface for improved heat and gas dissipation
• Vented rotor design with straight vane style for enhanced cooling
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for better thermal expansion management
• Compatible with 5-lug wheel setups with 114.3 mm bolt circle diameter

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to provide improved braking performance through advanced rotor surface technology. The combination of cross-drilled holes and precision slots helps to reduce brake fade by allowing gases and heat to escape more efficiently. This product line is tailored for drivers seeking enhanced brake response and durability, particularly for performance-oriented Lexus vehicles such as the GS and IS series.

Technical Specifications and Features

This disc brake rotor has a nominal thickness of 1.260 inches (32.0 mm) and a discard thickness of 1.181 inches (30.0 mm), ensuring a solid lifespan before replacement is necessary. The rotor’s outside diameter measures 11.65 inches (295.9 mm), with an overall height of 2.0 inches (50.8 mm). It features a vented design with straight vanes to optimize airflow and cooling during braking. The rotor is coated on the hat area to prevent corrosion, and it mounts using a floating disc system to accommodate thermal expansion and reduce stress on the rotor.

Compatible Vehicles and Applications

• Designed specifically for Lexus GS300, GS400, GS430
• Also compatible with Lexus IS300, LS400, SC300, SC400, SC430
• Ideal for drivers seeking improved brake cooling and performance on these models
• Suitable for both street and light performance driving conditions

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (1.181 inches) before installation
• Verify 5-lug wheel compatibility with 114.3 mm bolt circle diameter
• Floating disc mounting requires proper alignment to avoid uneven wear
• Hat finish coating should be handled carefully to maintain corrosion resistance
• ABS tone ring is not included; verify vehicle requirements before installation

Quality Assurance and Warranty

StopTech rotors are manufactured to meet strict quality standards for durability and performance. The vented and coated design helps extend rotor life under normal operating conditions. While specific warranty details are not provided here, StopTech products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Always consult the product documentation or manufacturer for exact warranty terms.