Stoptech 127.66025L 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 127.66025L) is engineered for Chevrolet and GMC trucks and SUVs, including the C1500, C1500 Suburban, Express 1500, Savana 1500, Tahoe, and Yukon models. Designed to enhance braking performance, this vented rotor features a coated hat finish and an ABS tone ring for reliable operation.

• Cross-drilled and slotted surface for improved heat dissipation and brake pad cleaning
• Vented rotor design to reduce brake fade under heavy use
• Coated hat finish to resist corrosion and extend rotor life
• Includes ABS tone ring for compatibility with vehicle stability systems
• Precision fit with 5 lug holes and 14mm stud thread diameter
• Nominal thickness of 1.287 inches (32.7 mm) with discard thickness at 1.215 inches (30.86 mm)
• Overall diameter of 11.614 inches (295 mm) and overall height of 4.508 inches (114.5 mm)

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to provide enhanced braking performance through improved heat management and pad bite. The cross-drilled holes and slots help evacuate gases, dust, and water from the rotor surface, which supports consistent braking under demanding conditions. This product line is suitable for drivers who require reliable stopping power and rotor durability on trucks and SUVs like the Chevrolet C1500 and GMC Yukon.

Product Details and Specifications

This disc brake rotor is vented with straight vanes to optimize airflow and cooling during braking. The rotor's coated hat finish helps prevent rust and corrosion, maintaining structural integrity over time. It features a 5-lug hole pattern with a 127 mm bolt circle diameter and 14 mm stud thread diameter, ensuring a precise fit for compatible Chevrolet and GMC models. The rotor includes an ABS tone ring, which is essential for vehicles equipped with anti-lock braking systems. Weighing approximately 27.5 lbs (12.5 kgs), this rotor balances durability and performance.

Common Applications and Problem Solving

• Reduces brake fade during heavy towing or hauling in Chevrolet C1500 and GMC Savana 1500
• Improves braking response and pad bite on GMC Yukon and Chevrolet Tahoe
• Helps prevent rotor warping caused by excessive heat buildup
• Maintains ABS sensor functionality with included tone ring
• Resists corrosion for longer service life in various weather conditions

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (1.215 inches) before installation
• Use proper torque specifications for 14 mm studs and 5-lug pattern
• Inspect and replace bearings and seals as needed; compatible inner bearing #410.91005 and outer bearing #410.91003
• Clean rotor surface before installation to remove any protective coatings or debris
• Verify ABS tone ring alignment for proper sensor operation

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The coated finish and vented design contribute to long-term durability and consistent braking 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 product documentation or manufacturer resources for exact warranty terms.