Stoptech 127.44143L 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 127.44143L) is engineered for reliable braking performance on select Toyota and Scion models. Designed specifically for vehicles like the Toyota Prius C, Yaris, and Scion iQ, this rotor offers enhanced heat dissipation and consistent stopping power.

• Cross-drilled and slotted surface for improved heat and gas dissipation
• Vented rotor design to reduce brake fade during extended use
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for better thermal expansion management
• Compatible with Toyota Prius C, Yaris, and Scion iQ models

Detailed Product Features and Specifications

This StopTech rotor features a nominal thickness of 0.866 inches (22.000 mm) and a discard thickness of 0.748 inches (19.000 mm), ensuring a durable lifespan before replacement is necessary. The rotor’s outside diameter measures 10.043 inches (255.100 mm), with an overall height of 1.823 inches (46.300 mm). It includes a vented design with straight vanes to optimize airflow and cooling during braking. The rotor’s hat is coated to protect against rust and corrosion, maintaining structural integrity over time. The center hole diameter is 2.165 inches (55.000 mm), and it mounts with a 4-lug pattern on a 3.937 inch (100.000 mm) bolt circle diameter, matching factory specifications for the listed vehicles.

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 debris removal. The combination of cross-drilled holes and precision slots helps maintain consistent pad contact and reduces the risk of brake fade under demanding conditions. This product line is suitable for drivers seeking a balance between everyday driving reliability and occasional spirited driving demands, making it a practical upgrade for compatible Toyota and Scion models.

Applications and Problem Solving

• Reduces brake fade caused by excessive heat buildup during frequent stops
• Improves wet weather braking by channeling water away from the rotor surface
• Minimizes brake dust accumulation for cleaner braking components
• Helps maintain consistent brake pad contact for smoother stopping power
• Prevents rotor warping through effective heat dissipation and venting

Installation Notes and Tips

Installation of the StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor (127.44143L) should be performed by a qualified technician to ensure proper fitment and safety. Verify compatibility with your Toyota Prius C, Yaris, or Scion iQ before installation. The rotor does not include bearings or an ABS tone ring, so reuse existing components if applicable. Proper torque specifications should be followed when mounting the rotor to avoid warping or uneven wear.

Quality Assurance and Warranty

StopTech rotors are manufactured to meet or exceed OEM standards for durability and performance. The coated hat finish provides corrosion resistance to extend rotor life. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against manufacturing defects. Consult the product documentation or manufacturer for exact warranty terms.