Stoptech 127.44084L Disc Brake Rotor - Rear Left

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 127.44084L) are engineered for Lexus and Toyota vehicles, including the GS300, LS400, SC300, SC400, and Supra models. Designed to enhance braking performance, these rotors feature a vented, slotted, and cross-drilled surface for improved heat dissipation and consistent stopping power.

• Cross-drilled and slotted surface for better heat and gas dissipation
• Vented rotor design to reduce brake fade
• Coated hat finish for corrosion resistance
• Compatible with Lexus GS300, LS400, Toyota SC300, SC400, and Supra
• Nominal thickness of 15.9 mm with discard thickness at 15.0 mm
• Outside diameter of 306.7 mm (12.075 inches)
• 5 lug holes with a 114.3 mm bolt circle diameter
• Weight approximately 6.14 kg (13.5 lbs)

Detailed Product Description

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors are precision-engineered vented rotors designed to improve braking efficiency and durability. The cross-drilled holes and slots on the rotor surface help to evacuate heat, brake dust, and gases generated during braking, which reduces the risk of brake fade and maintains consistent pedal feel. The vented design with straight vanes enhances airflow through the rotor, further aiding in temperature control during aggressive driving or heavy braking conditions.

These rotors feature a coated hat finish that provides corrosion resistance, extending the rotor's service life. The nominal thickness of 15.9 mm and discard thickness of 15.0 mm ensure the rotor maintains structural integrity throughout its lifespan. With an outside diameter of 306.7 mm and a 5-lug bolt pattern with a 114.3 mm bolt circle diameter, these rotors are specifically designed for select Lexus and Toyota models, including the GS300, LS400, SC300, SC400, and Supra.

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line focuses on delivering enhanced braking performance through advanced rotor surface technology. The combination of cross-drilled holes and slots improves heat dissipation and debris removal, which is critical for maintaining braking consistency under demanding conditions. This product line is tailored for drivers seeking improved brake response and durability without compromising OEM fitment and reliability.

Common Applications and Issues Addressed

• Reduces brake fade during spirited driving or towing
• Improves wet weather braking by channeling water away from the rotor surface
• Minimizes brake dust buildup for cleaner braking components
• Enhances overall brake system cooling to extend pad and rotor life
• Restores braking performance on Lexus GS300, LS400, Toyota SC300, SC400, and Supra models

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (15.0 mm) before installation
• Clean rotor surface with brake cleaner to remove any protective coating before mounting
• Check compatibility with existing brake pads and calipers for optimal performance
• Torque lug nuts to manufacturer specifications using a star pattern
• Perform a bed-in procedure after installation to maximize rotor and pad performance

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet or exceed OEM specifications, ensuring reliable fitment and consistent performance. The rotors undergo rigorous quality control processes to maintain 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. Refer to StopTech or authorized distributors for exact warranty terms.