Stoptech 127.40021L Disc Brake Rotor - Front Left

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor 127.40021L is engineered for Acura and Honda vehicles, including models like the Civic, Integra, and Fit. Designed to enhance braking performance, this vented rotor features a coated hat finish and a floating disc mounting system for improved heat dissipation and durability.

• Cross-drilled and slotted surface for efficient heat and gas dissipation
• Vented rotor design with straight vane style for optimal cooling
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting to reduce warping under stress
• Compatible with Acura and Honda models including Civic, Integra, Fit, and more
• Part number 127.40021L ensures precise fitment and quality

Detailed Product Features and Specifications

This StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor measures 10.315 inches (262 mm) in outside diameter with an overall height of 1.756 inches (44.6 mm). The rotor has a nominal thickness of 0.827 inches (21 mm) and a discard thickness of 0.748 inches (19 mm), providing a solid balance between performance and longevity. The rotor includes four stud/lug holes with a diameter of 0.496 inches (12.6 mm) and a mounting bolt hole circle diameter of 100 mm (3.937 inches). The center hole diameter is 2.524 inches (64.1 mm), designed for precise hub alignment. Weighing approximately 12 lbs (5.45 kgs), this vented rotor features a straight vane style to maximize airflow and cooling efficiency during braking.

About the StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Line

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to provide enhanced braking performance through improved heat dissipation and reduced brake fade. The combination of cross-drilled holes and precision-machined slots helps to evacuate gases, dust, and water from the rotor surface, maintaining consistent pad contact and braking efficiency. This product line is suitable for drivers seeking reliable performance upgrades for their Acura and Honda vehicles, especially in demanding driving conditions.

Common Applications and Problem Solving

• Reduces brake fade during aggressive or extended braking
• Improves wet weather braking by channeling water away from the rotor surface
• Minimizes brake dust buildup for cleaner operation
• Helps prevent rotor warping caused by excessive heat
• Enhances overall braking response and pedal feel

Installation Notes and Tips

• Ensure compatibility with your specific Acura or Honda model, such as Civic, Integra, or Fit
• Inspect brake pads and calipers for wear before installation
• Torque mounting bolts to manufacturer specifications to avoid rotor distortion
• Check rotor thickness regularly and replace when reaching discard thickness of 0.748 inches (19 mm)
• Proper bedding-in of new rotors and pads is recommended for optimal performance

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The 127.40021L rotor undergoes strict quality control processes, including precision machining and coating application. 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 manufacturer resources for exact warranty terms.