Stoptech 127.46040L Disc Brake Rotor - Front Left

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor (Part Number 127.46040L) is engineered for Mitsubishi Montero and Montero Sport models. Designed to enhance braking performance, this vented rotor features a coated hat finish and a slotted x drilled surface for improved heat dissipation and consistent stopping power.

• Cross-drilled and slotted surface for better heat and gas dissipation
• Vented rotor design to reduce brake fade
• Coated hat finish to resist corrosion
• Overall diameter of 10.866 inches (276 mm) for precise fitment
• 6 mounting bolt holes with a 108 mm bolt circle diameter
• Nominal thickness of 0.945 inches (24 mm) with discard thickness at 0.882 inches (22.4 mm)
• Weight approximately 13 lbs (5.91 kgs)

Detailed Product Description

This StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor is specifically designed for Mitsubishi Montero and Montero Sport vehicles, ensuring compatibility and reliable performance. The rotor’s vented construction with straight vanes promotes efficient airflow, helping to maintain optimal operating temperatures during heavy braking. The cross-drilled and slotted surface improves pad bite and helps evacuate brake dust and gases, which can otherwise reduce braking efficiency.

The rotor features a coated hat finish that protects against rust and corrosion, extending the rotor’s service life. With an outside diameter of 276 mm and a center hole diameter of 87 mm, this rotor mounts behind the hub using six bolts on a 108 mm bolt circle diameter. The nominal thickness of 24 mm and discard thickness of 22.4 mm provide clear service limits for maintenance.

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Line

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line focuses on delivering enhanced braking performance through advanced rotor surface designs. This product line combines cross-drilled holes and slots to improve heat dissipation and maintain consistent brake pad contact. The vented rotor design further aids in cooling, making these rotors suitable for both street and light performance driving applications.

Common Applications and Problem Solving

• Reduces brake fade during extended or aggressive braking
• Improves brake pad bite and responsiveness
• Helps prevent glazing and buildup of brake dust on pads
• Minimizes rotor warping caused by excessive heat
• Protects against corrosion with coated hat finish

Installation Notes and Tips

Ensure the rotor is compatible with your Mitsubishi Montero or Montero Sport before installation. Clean the rotor surface to remove any protective coatings or residues prior to mounting. Use proper torque specifications for the six mounting bolts on the 108 mm bolt circle diameter. Since this rotor mounts behind the hub, verify clearance and alignment during installation. ABS tone ring is not included, so confirm compatibility with your vehicle’s ABS system if applicable.

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The coated hat finish provides additional 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. Refer to the manufacturer’s warranty documentation for complete terms.