Stoptech 128.40021R Disc Brake Rotor - Front Right

StopTech Sport Cross-Drilled Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled Disc Brake Rotors (Part Number 128.40021R) are engineered for Acura and Honda vehicles, including models like the Civic, Civic del Sol, Integra, and Fit. Designed to enhance braking performance, these rotors feature a vented and cross-drilled surface to improve heat dissipation and reduce brake fade under demanding conditions.

• Cross-drilled surface for improved heat dissipation
• Vented rotor design to maintain optimal braking temperatures
• Coated hat finish for corrosion resistance
• Floating disc mounting for better rotor alignment and performance
• Compatible with Acura and Honda models including Civic, Integra, and Fit
• Part Number: 128.40021R

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

The StopTech Sport Cross-Drilled Disc Brake Rotors line focuses on delivering enhanced braking efficiency through advanced rotor design. The cross-drilled surface pattern helps to evacuate gases and debris, while the vented construction promotes consistent cooling. This product line is tailored for drivers seeking reliable performance upgrades for their Acura and Honda vehicles, ensuring improved stopping power and rotor longevity.

Technical Specifications and Features

This disc brake rotor features a nominal thickness of 0.827 inches (21.000 mm) and a discard thickness of 0.748 inches (19.000 mm), ensuring durability and safety margins. The rotor has an outside diameter of 10.315 inches (262.000 mm) and an overall height of 1.756 inches (44.600 mm). It includes a coated hat finish to resist corrosion and maintain appearance over time. The rotor is vented with straight vanes to optimize airflow and cooling. It mounts using a floating disc system with a 4-stud/lug hole pattern, each hole measuring 0.496 inches (12.600 mm) in diameter, and a mounting bolt hole circle diameter of 3.937 inches (100.000 mm). The center hole diameter is 2.524 inches (64.100 mm). This rotor weighs approximately 12 lbs (5.45 kgs).

Compatible Vehicles and Applications

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

Common Issues Addressed by This Rotor

• Brake fade caused by overheating during aggressive driving
• Uneven rotor wear leading to vibration or noise
• Corrosion and rust on rotor surfaces
• Reduced braking efficiency due to poor heat dissipation
• Warped rotors causing pedal pulsation

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean rotor surface to remove any protective coatings or debris
• Verify compatibility with vehicle’s lug pattern and mounting specifications
• Use proper torque settings on mounting bolts to avoid rotor warping
• Inspect brake pads and calipers during installation for optimal performance

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The coated hat finish provides corrosion resistance to extend rotor life. While specific warranty details are not provided, StopTech products typically come with manufacturer-backed quality assurance to ensure reliable performance on Acura and Honda vehicles.