Stoptech 127.63003L 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 127.63003L) is engineered for Jeep Cherokee, Comanche, Wagoneer, and Wrangler models. Designed to enhance braking performance, this vented rotor features a slotted and drilled surface to improve heat dissipation and maintain consistent stopping power under demanding conditions.

• Cross-drilled and slotted surface for improved heat and gas dissipation
• Vented rotor design with straight vanes for efficient cooling
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for better thermal expansion management
• Compatible with Jeep Cherokee, Comanche, Wagoneer, and Wrangler
• Nominal thickness of 0.874 inches (22.2 mm) and discard thickness of 0.815 inches (20.7 mm)
• Overall diameter of 11.016 inches (279.8 mm) and height of 3.020 inches (76.7 mm)
• 5 lug holes with a bolt circle diameter of 114.3 mm (4.5 inches)

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 rotor cooling and pad bite. The combination of cross-drilled holes and precision slots helps to evacuate heat, brake dust, and gases generated during braking. This product line is ideal for drivers who require reliable stopping power and rotor durability in both street and light performance driving scenarios.

Technical Details and Specifications

This disc brake rotor features a vented design with straight vanes that promote airflow to reduce heat buildup during braking. The rotor’s nominal thickness is 0.874 inches (22.2 mm), with a discard thickness of 0.815 inches (20.7 mm), ensuring a clear service life indicator. The rotor’s hat is coated to resist corrosion, which helps maintain structural integrity and appearance over time. The floating disc mounting system allows for slight movement to accommodate thermal expansion, reducing the risk of warping. The rotor measures 11.016 inches (279.8 mm) in outside diameter and 3.020 inches (76.7 mm) in overall height, with a center hole diameter of 2.835 inches (72 mm) and a 5-lug bolt pattern with a 114.3 mm (4.5 inch) bolt circle diameter.

Common Applications and Problem Solving

• Reduces brake fade caused by excessive heat buildup
• Improves braking response and pad bite under heavy use
• Minimizes rotor warping through vented design and floating mounting
• Helps prevent corrosion with coated hat finish
• Maintains consistent braking performance for Jeep Cherokee, Comanche, Wagoneer, and Wrangler vehicles

Installation Notes and Tips

• Ensure compatibility with your specific Jeep model and verify part number 127.63003L before installation
• Inspect brake pads and calipers for wear or damage during rotor replacement
• Torque lug nuts to manufacturer specifications to avoid rotor distortion
• Perform a proper bed-in procedure after installation to optimize rotor and pad performance
• ABS tone ring is not included; verify ABS sensor compatibility if applicable

Quality Assurance and Warranty

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