Stoptech 127.44127R 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 127.44127R) are engineered for Lexus 4Runner and Toyota GX470 models. These vented rotors feature a slotted and drilled surface designed to improve braking performance and heat dissipation under demanding conditions.

• Cross-drilled and slotted rotor surface for enhanced cooling and debris removal
• Vented rotor design with straight vane style for efficient heat dissipation
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for improved rotor alignment and reduced stress
• Compatible with Lexus 4Runner and Toyota GX470 models
• Nominal outside diameter of 338 mm (13.307 inches) and overall height of 67.4 mm (2.654 inches)
• 6 stud/lug holes with a 139.7 mm (5.5 inches) bolt circle diameter

Detailed Product Description

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors are designed to meet the specific braking needs of Lexus 4Runner and Toyota GX470 vehicles. With a nominal thickness of 27.5 mm (1.083 inches) and a discard thickness of 26 mm (1.024 inches), these rotors provide a durable and reliable braking surface. The vented rotor design incorporates straight vanes that promote airflow, reducing heat buildup during heavy braking. The cross-drilled and slotted surface helps to evacuate gases, dust, and water, improving brake pad contact and reducing the risk of brake fade.

The coated hat finish protects the rotor’s central hub from corrosion, ensuring longevity and maintaining fitment integrity. The floating disc mounting system allows for slight movement between the rotor and hub, which helps to reduce stress and improve braking consistency. With 6 lug holes and a mounting bolt hole circle diameter of 139.7 mm (5.5 inches), these rotors are engineered for precise fitment on the specified Lexus and Toyota models.

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line focuses on performance-oriented rotors that combine cross-drilled holes and precision slots to enhance braking efficiency. This product line is designed to improve heat dissipation and maintain consistent brake pad contact, which is critical for vehicles like the Lexus 4Runner and Toyota GX470 that may encounter varied driving conditions. The rotors in this line feature vented designs and corrosion-resistant coatings to balance durability with performance.

Common Applications and Problem Solving

• Reduces brake fade during extended or aggressive braking
• Improves wet weather braking by channeling water away from the rotor surface
• Minimizes brake dust buildup for cleaner braking components
• Enhances heat dissipation to prevent rotor warping
• Maintains consistent braking performance under heavy load or towing conditions

Installation Notes and Tips

• Ensure rotor discard thickness of 26 mm is not exceeded before replacement
• Verify compatibility with Lexus 4Runner and Toyota GX470 models prior to installation
• Use proper torque specifications for the 6 lug bolts on the 139.7 mm bolt circle
• Inspect brake pads for wear and replace if necessary to optimize rotor performance
• Clean rotor surface before installation to remove any protective coatings or debris

Quality Assurance and Warranty

StopTech rotors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The coated hat finish provides corrosion resistance to extend rotor life. While specific warranty details are not provided here, StopTech products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Always consult the product documentation or manufacturer for exact warranty terms.