Stoptech 127.42070R Disc Brake Rotor - Front Right

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor (Part Number 127.42070R) is engineered for enhanced braking performance on select Nissan and Infiniti vehicles. Designed specifically for models like the Nissan Altima, Nissan Maxima, and Infiniti I35, this rotor offers improved heat dissipation and consistent stopping power.

• Cross-drilled and slotted surface for efficient heat and gas dissipation
• Vented rotor design with straight vanes to reduce brake fade
• 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 vented design with straight vanes that promote airflow, helping to maintain optimal operating temperatures during aggressive 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 has an outside diameter of 296 mm (11.654 inches) and an overall height of 49.2 mm (1.937 inches), with a nominal thickness of 24 mm (0.945 inches) and a discard thickness of 22 mm (0.866 inches). The hat area is coated to protect against rust and corrosion, ensuring durability over time.

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to provide enhanced braking performance for street and light track use. This product line focuses on improving heat dissipation and pad bite through precision-machined slots and drilled holes, which help maintain consistent braking under demanding conditions. The rotors in this line are vented and coated, balancing performance with corrosion resistance, making them suitable for vehicles like the Nissan Altima, Maxima, and Infiniti I35.

Common Applications and Problem Solving

• Reduces brake fade during extended or aggressive braking
• Improves heat dissipation to prevent rotor warping
• Enhances brake pad bite and responsiveness
• Minimizes brake dust buildup on rotor surface
• Protects against corrosion with coated hat finish

Installation Notes and Tips

Ensure compatibility with your vehicle’s 5-lug wheel setup and 114.3 mm bolt circle diameter before installation. The rotor does not include bearings or an ABS tone ring, so verify if your vehicle requires these components separately. Proper torque specifications should be followed when mounting the rotor to avoid warping. It is recommended to replace brake pads simultaneously to ensure optimal braking performance.

Quality Assurance and Warranty

StopTech rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The coated hat finish provides additional protection against corrosion, extending the rotor’s service life. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Consult the product documentation or manufacturer for exact warranty terms.