Stoptech 127.44109L 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 127.44109L) is engineered for Toyota 4Runner and Tacoma 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.

• Compatible with Toyota 4Runner and Tacoma vehicles
• Part Number: 127.44109L
• Cross-drilled and slotted surface for improved cooling and debris removal
• Vented rotor design with straight vane style for efficient heat management
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for better thermal expansion handling
• Outside diameter: 296.8 mm (11.685 inches)
• Nominal thickness: 21.7 mm (0.854 inches)
• Discard thickness: 20.0 mm (0.787 inches)
• Overall height: 70.5 mm (2.776 inches)
• 6 lug holes with 5.5 inch bolt circle diameter

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 dissipation and pad bite. The cross-drilled holes and precision-machined slots help evacuate gases, dust, and water from the rotor surface, reducing brake fade and maintaining consistent pedal feel. This product line is suitable for drivers seeking reliable braking upgrades for their Toyota 4Runner or Tacoma without compromising durability.

Product Details and Specifications

This disc brake rotor features a vented design with straight vanes that promote airflow to cool the rotor during heavy braking. The rotor’s coated hat finish offers corrosion resistance, helping to maintain structural integrity over time. With a floating disc mounting style, the rotor can better accommodate thermal expansion, reducing the risk of warping. The rotor measures 296.8 mm in outside diameter and has a nominal thickness of 21.7 mm, with a discard thickness of 20.0 mm, ensuring it meets OEM specifications for safe operation.

Common Applications and Problem Solving

• Improves brake cooling to reduce fade during towing or off-road use
• Helps maintain consistent braking performance in wet or dusty conditions
• Reduces rotor glazing and pad deposits for smoother braking
• Addresses rotor warping issues caused by heat buildup
• Enhances overall brake system durability for Toyota 4Runner and Tacoma

Installation Notes and Tips

• Ensure compatibility with your Toyota 4Runner or Tacoma before installation
• Check rotor thickness and discard limits regularly to maintain safety
• Use proper torque specifications on lug nuts to avoid rotor distortion
• Inspect brake pads and replace if worn to optimize rotor performance
• Professional installation is recommended for best results

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The 127.44109L rotor undergoes 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 product documentation or the manufacturer for exact warranty terms.