Stoptech 127.40046L Disc Brake Rotor - Front Left

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor 127.40046L is engineered for Acura and Honda vehicles, including popular models like the Accord, CL, MDX, Odyssey, Pilot, TL, and TSX. Designed to enhance braking performance, this rotor features a vented, slotted, and drilled surface for improved heat dissipation and consistent stopping power.

• Cross-drilled and slotted surface for efficient heat and gas dissipation
• Vented rotor design to reduce brake fade under heavy use
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for better thermal expansion management
• Compatible with 5-lug wheel setups on Acura and Honda models

Detailed Product Features and Specifications

This StopTech rotor has an outside diameter of 300 mm (11.811 inches) and an overall height of 47.2 mm (1.858 inches), providing a precise fit for the specified Acura and Honda vehicles. The nominal thickness is 28 mm (1.102 inches) with a discard thickness of 26 mm (1.024 inches), ensuring safe replacement intervals. The rotor includes four miscellaneous holes and a 114.3 mm (4.5 inch) mounting bolt hole circle diameter with five stud/lug holes sized at 12.6 mm (0.496 inches). The center hole diameter measures 64.1 mm (2.524 inches). The rotor weighs approximately 8.53 kg (18.76 lbs), balancing durability and performance. The vane style is straight, which aids in consistent airflow and cooling 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 slots helps evacuate gases and debris 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 without compromising OEM fitment and quality.

Common Applications and Problem Solving

• Reduces brake fade during aggressive driving or towing
• Improves heat dissipation to prevent rotor warping
• Minimizes brake dust buildup on rotor surface
• Enhances wet weather braking performance by channeling water away
• Restores braking efficiency on worn or glazed rotors

Installation Notes and Tips

Ensure the rotor is installed on compatible Acura or Honda models such as the Accord, CL, MDX, Odyssey, Pilot, TL, or TSX. Verify the rotor thickness before installation and replace if below the discard thickness of 26 mm. Use proper torque specifications for the 5-lug mounting bolts and inspect brake pads for wear during installation. The floating disc mounting design requires careful alignment to maintain optimal rotor function.

Quality Assurance and Warranty

StopTech 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 here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Always consult the product documentation or manufacturer for exact warranty terms.