Stoptech 126.40021SL Disc Brake Rotor - Front Left

StopTech Sport Slotted Disc Brake Rotors Overview

The StopTech Sport Slotted Disc Brake Rotors (Part Number 126.40021SL) are engineered for Acura and Honda vehicles, including models like the Civic, Integra, and Fit. These vented, slotted rotors provide consistent braking performance and improved heat dissipation for enhanced driving control.

• Vented disc brake rotor design for efficient heat management
• Slotted surface type to reduce brake fade and improve pad bite
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for better rotor alignment and reduced warping
• Compatible with Acura and Honda models such as Civic, Integra, Fit, and more
• Overall diameter of 262 mm (10.315 inches) and nominal thickness of 21 mm (0.827 inches)
• Four stud/lug holes with a 100 mm (3.937 inches) bolt circle diameter

About StopTech Sport Slotted Disc Brake Rotors

The StopTech Sport Slotted Disc Brake Rotors line is designed to meet the demands of drivers seeking reliable braking performance with enhanced cooling capabilities. The slotted surface helps evacuate gases and debris from the pad surface, improving braking consistency under aggressive driving conditions. The vented rotor design further aids in heat dissipation, reducing the risk of brake fade during extended use. This product line balances durability and performance, making it suitable for daily driving and spirited road use on compatible Acura and Honda vehicles.

Technical Specifications and Features

This rotor features a coated hat finish that protects against rust and corrosion, ensuring longevity. The overall height measures 44.6 mm (1.756 inches), with a center hole diameter of 64.1 mm (2.524 inches). The rotor includes four miscellaneous holes and a straight vane style for optimized airflow. Weighing approximately 12 lbs (5.45 kg), it is designed for a floating disc mounting system, which helps maintain proper alignment and reduces the chance of rotor warping over time.

Compatible Vehicles and Applications

• Acura Integra and EL
• Honda Civic, Civic del Sol, and Insight
• Honda Fit and City

These rotors are ideal for drivers looking to replace worn or damaged rotors on these specific Acura and Honda models, ensuring consistent braking performance and safety.

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat buildup
• Uneven rotor wear leading to vibration or noise
• Corrosion and rust on rotor surfaces
• Reduced braking efficiency due to glazed pads or rotor surface
• Warping or rotor distortion from thermal stress

Installation Notes and Tips

Ensure the rotor thickness is within the nominal range (21.0 mm) and above the discard thickness (19.0 mm) before installation. Clean the rotor surface to remove any protective coatings or debris. Use proper torque specifications for the four lug holes (12.6 mm diameter) and verify the rotor is seated correctly on the hub with the 64.1 mm center hole diameter. Since bearings and ABS tone rings are not included, reuse existing components if applicable. It is recommended to replace brake pads simultaneously for optimal performance.

Quality Assurance and Warranty

StopTech Sport Slotted Disc Brake Rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The coated finish and vented design contribute to durability and consistent braking performance. While specific warranty details are not provided, StopTech products typically come with a limited warranty against defects in materials and workmanship. Always consult product documentation or the manufacturer for exact warranty terms.