Stoptech 127.42101R Disc Brake Rotor - Rear Right

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 127.42101R) are engineered for enhanced braking performance on Nissan and Infiniti vehicles. Designed specifically for models like the Nissan 350Z, 370Z, Infiniti G37, and Q60, these rotors provide reliable stopping power with improved heat dissipation and reduced brake fade.

• Cross-drilled and slotted surface for efficient heat and gas dissipation
• Vented rotor design with straight vane style for optimal cooling
• Coated hat finish to resist corrosion and extend rotor life
• Precision fit with 5 lug holes and 114.3 mm bolt circle diameter
• Nominal outside diameter of 350 mm (13.78 inches) and overall height of 62.2 mm (2.449 inches)
• Compatible with Nissan 350Z, 370Z, Infiniti G37, Q60, and Z models

Detailed Product Features and Specifications

This disc brake rotor features a vented design with straight vanes that promote consistent airflow, helping to maintain lower operating temperatures during aggressive driving or track use. The cross-drilled and slotted surface improves pad bite and helps evacuate brake dust and gases, reducing the risk of brake fade. The rotor’s coated hat finish offers protection against rust and corrosion, which is essential for maintaining performance and appearance over time.

With a nominal thickness of 20.0 mm (0.787 inches) and a discard thickness of 18.0 mm (0.709 inches), these rotors meet strict OEM specifications for durability and safety. The center hole diameter measures 68.0 mm (2.677 inches), and the rotor mounts with five lug holes sized at 12.8 mm (0.504 inches) diameter, ensuring a precise fit on compatible Nissan and Infiniti models.

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 sport and performance vehicles. This product line focuses on improving heat dissipation and brake pad contact through cross-drilled holes and precision slots, which help maintain consistent braking under demanding conditions. The rotors are vented with straight vanes to optimize cooling, making them suitable for spirited street driving and occasional track use.

Common Applications and Problem Solving

• Reduces brake fade during high-performance driving
• Improves heat dissipation to extend rotor and pad life
• Minimizes brake dust buildup on rotor surface
• Enhances wet weather braking performance by channeling water away
• Prevents rotor warping caused by excessive heat

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (18.0 mm) before installation
• Use proper torque specifications for the 5 lug bolts (12.8 mm diameter)
• Check compatibility with ABS systems; this rotor does not include an ABS tone ring
• Inspect brake pads and calipers for wear during rotor replacement
• Clean rotor surface with brake cleaner before installation to remove any protective coatings

Quality Assurance and Warranty

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