Stoptech 127.44091L Disc Brake Rotor - Front Left

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor 127.44091L is engineered for Toyota 4Runner and T100 models, providing reliable braking performance with enhanced heat dissipation. Designed to meet the demands of both daily driving and spirited use, this rotor combines vented construction with a coated hat finish for durability.

• Cross-drilled and slotted surface for improved heat and gas dissipation
• Vented rotor design to reduce brake fade under heavy use
• Coated hat finish to resist corrosion and extend rotor life
• Compatible with Toyota 4Runner and T100 models
• 6 mounting bolt holes with precise fitment specifications
• Nominal thickness of 0.984 inches (25.000 mm) with discard thickness at 0.906 inches (23.000 mm)
• Overall diameter of 11.437 inches (290.500 mm) and height of 2.594 inches (65.900 mm)

Detailed Product Description

This StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor (part number 127.44091L) features a vented design with straight vanes that promote efficient airflow to maintain optimal operating temperatures. The cross-drilled and slotted surface pattern helps to evacuate brake dust, gases, and water, improving braking consistency and reducing the risk of brake fade. The rotor’s coated hat finish provides corrosion resistance, which is especially beneficial for vehicles exposed to harsh weather conditions. With a center hole diameter of 3.937 inches (100.000 mm) and a mounting bolt hole circle diameter of 5.000 inches (127.000 mm), this rotor ensures a precise fit for Toyota 4Runner and T100 models. Weighing approximately 16 lbs (7.270 kgs), it balances durability with manageable weight for effective braking performance.

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Product Line

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to enhance braking performance through advanced rotor surface technology. By combining cross-drilled holes with precision slots, these rotors improve heat dissipation and maintain clean pad contact surfaces. This product line is ideal for drivers seeking improved brake response and reduced fade without modifying their vehicle’s original braking system. The 127.44091L rotor is a part of this line, tailored specifically for Toyota 4Runner and T100 applications.

Common Applications and Problem Solving

• Reduces brake fade during extended or aggressive braking
• Improves wet weather braking performance by channeling water away
• Minimizes brake dust buildup on rotor surface
• Helps maintain consistent brake pedal feel under heavy use
• Prevents corrosion on the rotor hat area for longer service life

Installation Notes and Tips

• Ensure compatibility with Toyota 4Runner and T100 models before installation
• Check rotor thickness and discard limits to confirm suitability for reuse or replacement
• Use proper torque specifications on the 6 mounting bolts to avoid warping
• Inspect brake pads and hardware during rotor replacement for optimal performance
• Perform a bed-in procedure after installation to maximize rotor and pad contact

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet strict quality standards, ensuring consistent performance and durability. The 127.44091L rotor undergoes rigorous testing for dimensional accuracy and material integrity. While specific warranty details are not provided here, StopTech products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Always refer to the official StopTech warranty documentation for complete terms.