Stoptech 128.44103L Disc Brake Rotor - Front Left

StopTech Sport Cross-Drilled Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled Disc Brake Rotors (part number 128.44103L) are engineered for Toyota Supra models requiring reliable and consistent braking performance. These vented, cross-drilled rotors provide enhanced heat dissipation and improved stopping power under demanding driving conditions.

• Compatible with Toyota Supra vehicles
• Cross-drilled surface for efficient heat and gas dissipation
• Vented rotor design with straight vane style for optimal cooling
• Coated hat finish to resist corrosion
• Floating disc mounting for improved rotor alignment and performance
• Overall diameter of 323 mm (12.717 inches) and nominal thickness of 30 mm (1.181 inches)
• 5 lug holes with 114.3 mm bolt circle diameter
• Weight approximately 21 lbs (9.55 kgs)

Detailed Product Description

The StopTech Sport Cross-Drilled Disc Brake Rotors are designed specifically for the Toyota Supra, ensuring precise fitment and reliable braking performance. Featuring a vented rotor design with straight vanes, these rotors promote effective airflow to reduce heat buildup during aggressive driving or track use. The cross-drilled surface helps to dissipate gases and water, maintaining consistent brake pad contact and reducing the risk of brake fade.

The rotor’s hat is coated to protect against corrosion, extending the service life of the part. With a floating disc mounting system, the rotor allows for slight movement to accommodate thermal expansion and improve braking consistency. The rotor measures 323 mm in outside diameter and 30 mm in nominal thickness, with a discard thickness of 28 mm, ensuring it meets OEM specifications for the Toyota Supra.

StopTech Sport Cross-Drilled Disc Brake Rotors Product Line

The StopTech Sport Cross-Drilled Disc Brake Rotors line focuses on delivering performance-oriented rotors that balance durability and heat management. This product line is engineered to provide enhanced braking response and thermal efficiency through features like cross-drilled surfaces and vented designs. The 128.44103L rotor is part of this line, offering Toyota Supra owners a rotor that supports spirited driving while maintaining OEM-level fitment and reliability.

Common Applications and Problem Solving

• Reduces brake fade during high-performance or track driving
• Improves heat dissipation to prevent rotor warping
• Maintains consistent braking in wet conditions by dispersing water
• Minimizes brake pad glazing and uneven wear
• Addresses corrosion issues with coated hat finish

Installation Notes and Tips

• Ensure compatibility with Toyota Supra models before installation
• Check rotor discard thickness (28 mm) and replace if below specification
• Use proper torque specifications for the 5 lug bolts on the 114.3 mm bolt circle
• Inspect brake pads and calipers during rotor replacement for optimal performance
• Follow manufacturer guidelines for bedding-in new rotors

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. Each rotor undergoes rigorous quality control to ensure durability and 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 StopTech directly for warranty terms related to part number 128.44103L.