Stoptech 127.42120R 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 127.42120R) are engineered for enhanced braking performance and durability. Designed specifically for select INFINITI and Nissan models, these rotors provide reliable stopping power under demanding conditions.

• Cross-drilled and slotted surface for improved heat dissipation and brake pad cleaning
• 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 configurations and specific bolt patterns

Detailed Product Features and Specifications

This disc brake rotor features a nominal thickness of 1.102 inches (28.000 mm) and a discard thickness of 1.024 inches (26.000 mm), ensuring precise wear limits for safe operation. The rotor’s outside diameter measures 12.591 inches (319.800 mm), with an overall height of 1.941 inches (49.300 mm). The center hole diameter is 2.677 inches (68.000 mm), and it mounts using a 5-lug pattern with a bolt circle diameter of 4.500 inches (114.300 mm). The rotor weighs approximately 22.3 lbs (10.12 kgs), balancing strength and weight for optimal performance.

About the StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Line

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to enhance braking efficiency through advanced rotor surface technology. The combination of cross-drilled holes and precision slots helps to dissipate heat and gases generated during braking, reducing the risk of brake fade. The vented rotor design with straight vanes further improves airflow, maintaining consistent braking performance. This product line is suitable for drivers seeking improved brake response and durability on vehicles such as the INFINITI 370Z, Q50, Q60, QX50, QX60, and Nissan Murano, Pathfinder, and JX35.

Compatible Vehicles and Common Applications

• INFINITI 370Z, Q50, Q60, QX50, QX60, Z
• Nissan Murano, Pathfinder, JX35
• Replacement for worn or warped rotors
• Upgrading factory rotors for improved heat management
• Addressing brake noise and vibration issues

Installation Notes and Tips

• Ensure rotor discard thickness is checked before installation to confirm suitability
• Use proper torque specifications for the 5-lug mounting pattern
• Verify compatibility with vehicle ABS systems; this rotor does not include an ABS tone ring
• Inspect brake pads and hardware during rotor replacement for optimal performance

Quality Assurance and Warranty

StopTech rotors are manufactured to meet or exceed OEM specifications, ensuring reliable performance and safety. The coated hat finish provides corrosion resistance to extend rotor life. While specific warranty details are not provided here, StopTech products typically come with manufacturer-backed quality guarantees. Always consult the product documentation or manufacturer for warranty information.