Stoptech 127.40046R Disc Brake Rotor - Front Right

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 127.40046R) are engineered for Acura and Honda vehicles, including popular models like the Accord, CL, MDX, Odyssey, Pilot, TL, and TSX. These rotors provide reliable braking performance with enhanced heat dissipation and improved pad bite.

• Cross-drilled and slotted surface for efficient heat dissipation and debris removal
• 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 with a 114.3 mm bolt circle diameter

Detailed Product Features and Specifications

This StopTech rotor features a 300 mm (11.811 inch) outside diameter and a nominal thickness of 28.0 mm (1.102 inches), with a discard thickness of 26.0 mm (1.024 inches). The overall height measures 47.2 mm (1.858 inches), ensuring proper fitment and clearance for the specified Acura and Honda models. The rotor is vented with straight vanes to optimize airflow and cooling during braking. The surface is cross-drilled and slotted, which helps to reduce brake fade by allowing gases and dust to escape, improving pad contact and braking consistency.

The rotor’s hat is coated to protect against rust and corrosion, which is especially beneficial in wet or humid environments. It mounts using a floating disc design, allowing for slight movement to accommodate thermal expansion and reduce the risk of warping. The center hole diameter is 64.1 mm (2.524 inches), and it includes four additional holes for mounting, with five stud/lug holes sized at 12.6 mm (0.496 inches) diameter.

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Product Line

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to offer enhanced braking performance for street and light track use. This product line focuses on improving heat dissipation and pad bite through precision-machined cross-drilled holes and slots. These rotors are vented and coated to provide durability and consistent braking performance, making them suitable for Acura and Honda vehicles requiring reliable stopping power under varied driving conditions.

Common Applications and Problem Solving

• Reduces brake fade during aggressive driving or towing
• Improves braking response and pad bite in wet or dusty conditions
• Minimizes rotor warping caused by heat buildup
• Prevents corrosion and extends rotor service life
• Maintains consistent braking performance for Acura and Honda models like Accord and Pilot

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (26.0 mm) before installation
• Verify compatibility with vehicle’s 5-lug, 114.3 mm bolt circle pattern
• Use proper torque specifications for mounting bolts to avoid rotor distortion
• Inspect brake pads and calipers for wear when replacing rotors
• Perform a bed-in procedure after installation for optimal braking performance

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The rotors undergo rigorous quality control to ensure durability and consistent performance. 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.