Stoptech 227.40071L Disc Brake Rotor - Front Left

StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 227.40071L) are engineered for Acura and Honda vehicles, including the MDX, Pilot, RLX, and ZDX models. Designed to enhance braking performance, these rotors feature a vented, slotted, and cross-drilled surface to improve heat dissipation and reduce brake fade under demanding conditions.

• Cross-drilled and slotted rotor surface for improved cooling and debris removal
• Vented rotor design to enhance heat dissipation
• Floating disc mounting for better rotor alignment and reduced warping
• Compatible with Acura MDX, Pilot, RLX, and Honda ZDX models
• Nominal thickness of 1.102 inches (28.000 mm) with discard thickness at 1.024 inches (26.000 mm)
• Outside diameter of 12.992 inches (330.000 mm) for precise fitment
• 5 lug holes with a 4.724 inch (120.000 mm) bolt circle diameter

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

The StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to provide a balance between performance and durability. Featuring a vented rotor construction combined with cross-drilled holes and precision slots, this product line helps maintain consistent braking performance by improving airflow and reducing heat buildup. The floating disc mounting system further aids in minimizing rotor warping, making it suitable for daily driving and spirited use on Acura and Honda vehicles.

Technical Specifications and Features

This disc brake rotor has a nominal thickness of 1.102 inches (28.000 mm) and a discard thickness of 1.024 inches (26.000 mm), ensuring a long service life before replacement is necessary. The rotor’s overall height measures 1.862 inches (47.300 mm), and it features a 12.992 inch (330.000 mm) outside diameter, matching factory specifications for a direct fit. The rotor includes 5 stud/lug holes with a diameter of 0.571 inches (14.500 mm) and a mounting bolt hole circle diameter of 4.724 inches (120.000 mm). The center hole diameter is 2.760 inches (70.100 mm), and the rotor weighs approximately 22.55 lbs (10.25 kgs). The rotor surface is slotted and drilled, and it is vented with straight vanes to optimize cooling efficiency.

Common Applications and Problem Solving

• Improves braking performance on Acura MDX, Pilot, RLX, and Honda ZDX vehicles
• Reduces brake fade during extended or aggressive driving
• Helps prevent rotor warping and cracking through vented design and floating mounting
• Enhances heat dissipation to maintain consistent brake pedal feel
• Removes brake dust and debris with slotted and drilled surface

Installation Notes and Tips

• Ensure compatibility with Acura MDX, Pilot, RLX, and Honda ZDX models before installation
• Check rotor thickness and discard thickness to confirm replacement timing
• Use proper torque specifications for lug nuts to avoid rotor damage
• Inspect brake pads and hardware during rotor replacement for optimal performance
• Floating disc mounting requires correct alignment to prevent uneven wear

Quality Assurance and Warranty

StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Always refer to the manufacturer’s warranty documentation for complete coverage information.