Stoptech 127.44129R Disc Brake Rotor - Front Right

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 127.44129R) are engineered for Toyota 4Runner, FJ Cruiser, and Tacoma models. Designed to improve braking performance and heat dissipation, these rotors offer a reliable upgrade for drivers seeking enhanced stopping power and durability.

• Cross-drilled and slotted surface for improved heat dissipation and brake pad cleaning
• Vented rotor design with straight vane style for efficient cooling
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for better rotor alignment and reduced warping
• Compatible with 6-lug wheel setups on Toyota 4Runner, FJ Cruiser, and Tacoma

Detailed Product Features and Specifications

This disc brake rotor features a nominal thickness of 1.102 inches (28.000 mm) and a discard thickness of 1.024 inches (26.000 mm), ensuring a precise fit and long service life. The rotor's outside diameter measures 12.559 inches (319.000 mm), with an overall height of 2.657 inches (67.500 mm). The center hole diameter is 4.252 inches (108.000 mm), and the mounting bolt hole circle diameter is 5.500 inches (139.700 mm), designed for a 6-stud lug pattern with 0.571 inch (14.500 mm) diameter holes. The rotor weighs approximately 18.5 lbs (8.41 kgs), balancing strength and weight for optimal performance.

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is engineered to provide enhanced braking performance through improved heat management and pad bite. The cross-drilled and slotted surface design helps evacuate gases, dust, and water from the rotor surface, reducing brake fade and maintaining consistent stopping power. The vented rotor construction with straight vanes promotes airflow to keep temperatures down during demanding driving conditions. This product line is suitable for drivers who require reliable braking performance on Toyota 4Runner, FJ Cruiser, and Tacoma vehicles.

Common Applications and Problem Solving

• Reduces brake fade during heavy braking or towing
• Improves brake pad cleaning for consistent friction
• Minimizes rotor warping caused by heat buildup
• Enhances overall braking response and pedal feel
• Resists corrosion with coated hat finish for longer service life

Installation Notes and Tips

Ensure compatibility with your Toyota 4Runner, FJ Cruiser, or Tacoma before installation. This rotor requires a 6-lug wheel setup and does not include bearings or ABS tone rings. Proper torque specifications should be followed when mounting the rotor to avoid warping. It is recommended to replace brake pads simultaneously to maximize braking performance and rotor life.

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The coated hat finish provides corrosion resistance to extend rotor durability. 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.