Stoptech 127.40057L Disc Brake Rotor - Front Left

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 127.40057L) are engineered for Acura and Honda vehicles, including Civic, CR-V, CSX, ILX, and RSX 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 enhanced cooling and debris removal
• Vented rotor design to reduce heat buildup during braking
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for improved rotor alignment and reduced warping
• Compatible with 5-lug wheel configurations on Acura and Honda models

Detailed Product Features and Specifications

This disc brake rotor has an outside diameter of 11.811 inches (300 mm) and an overall height of 1.854 inches (47.1 mm). The nominal thickness is 0.984 inches (25 mm), with a discard thickness of 0.906 inches (23 mm), ensuring clear service limits for safe operation. The rotor includes four straight vanes for effective internal cooling and weighs approximately 15 lbs (6.82 kg). The center hole diameter measures 2.528 inches (64.2 mm), and the mounting bolt hole circle diameter is 4.5 inches (114.3 mm) with five stud/lug holes sized at 0.492 inches (12.5 mm). This rotor does not include ABS tone rings or bearings.

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 debris clearance. The combination of cross-drilled holes and precision slots helps maintain consistent brake pad contact and reduces the risk of brake fade under demanding driving conditions. This product line is suitable for drivers seeking reliable, performance-oriented rotors for their Acura and Honda vehicles.

Common Applications and Problem Solving

• Reduces brake fade caused by excessive heat buildup
• Improves wet weather braking by channeling water away from the rotor surface
• Minimizes brake dust accumulation for cleaner braking components
• Helps prevent rotor warping and extends rotor lifespan
• Enhances overall braking response and pedal feel

Installation Notes and Tips

Ensure compatibility with your specific Acura or Honda model before installation. The rotor is designed for floating disc mounting and requires a 5-lug wheel hub with a 4.5-inch bolt circle diameter. It is recommended to replace brake pads simultaneously to optimize braking performance. Proper torque specifications should be followed when mounting the rotor to avoid warping. Since bearings and ABS tone rings are not included, verify existing components are in good condition or replace as necessary.

Quality Assurance and Warranty

StopTech rotors are manufactured to meet or exceed OEM standards for durability and performance. The coated hat finish provides corrosion resistance to extend service life. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against manufacturing defects. Consult product documentation or manufacturer resources for complete warranty information.