Stoptech 127.44107R 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 127.44107R) are engineered for Lexus LS400 models requiring reliable and consistent braking performance. These rotors feature a vented design with cross-drilled and slotted surfaces to enhance heat dissipation and maintain optimal braking under demanding conditions.

• Compatible with Lexus LS400
• Part Number: 127.44107R
• Vented disc brake rotor with cross-drilled and slotted surface
• Coated hat finish for corrosion resistance
• Overall diameter: 315 mm (12.402 inches)
• Nominal thickness: 28.000 mm (1.102 inches)
• Discard thickness: 26.000 mm (1.024 inches)
• Floating disc mounting with 5 lug holes (14.5 mm diameter)
• ABS tone ring not included

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to improve braking efficiency by combining vented rotor construction with precision cross-drilled holes and slots. This design promotes better heat dissipation and helps reduce brake fade during extended use. The coated hat finish adds durability by protecting against rust and corrosion, making these rotors suitable for both street and light performance driving applications.

Technical Specifications and Features

This disc brake rotor features a vented design with straight vanes to optimize airflow and cooling. The rotor's outside diameter measures 315 mm (12.402 inches), with a nominal thickness of 28.000 mm (1.102 inches) and a discard thickness of 26.000 mm (1.024 inches), ensuring long service life and safe replacement intervals. The rotor includes 5 lug holes with a diameter of 14.5 mm and a mounting bolt hole circle diameter of 114.3 mm (4.5 inches). The center hole diameter is 62.1 mm (2.445 inches), and the rotor weighs approximately 23 lbs (10.45 kgs). The floating disc mounting style allows for slight movement to reduce stress and improve braking consistency.

Common Applications and Problem Solving

• Improves heat dissipation to reduce brake fade during heavy braking
• Helps prevent rotor warping caused by thermal stress
• Enhances brake pad cleaning and debris removal with slotted surface
• Reduces brake dust buildup for cleaner wheel appearance
• Provides consistent braking performance for Lexus LS400 vehicles

Installation Notes and Tips

• Ensure compatibility with Lexus LS400 before installation
• Check rotor thickness and discard limits to confirm replacement timing
• Use proper torque specifications for lug nuts and mounting bolts
• Inspect brake pads and calipers during rotor replacement
• Perform a bed-in procedure after installation for optimal braking performance

Quality Assurance and Warranty

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The coated hat finish provides corrosion resistance to extend rotor life. While specific warranty details are not provided, StopTech products typically come with a limited warranty against defects in materials and workmanship. Always consult product documentation or the manufacturer for exact warranty terms.