Stoptech 127.44146R 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 127.44146R) are engineered for reliable braking performance on select Lexus, Toyota, Pontiac, and Scion vehicles. Designed to improve heat dissipation and reduce brake fade, these rotors are a solid upgrade for models like the Toyota Camry, Lexus ES350, and Scion tC.

• Cross-drilled and slotted surface for enhanced cooling and debris removal
• Vented rotor design to improve heat dissipation
• Coated hat finish to resist corrosion
• Floating disc mounting for better rotor alignment and reduced warping
• Compatible with 5-lug wheel configurations and specific bolt patterns

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line focuses on performance-oriented rotors that combine cross-drilled holes and precision slots. This design improves brake pad bite and helps evacuate gases, dust, and water from the rotor surface. The vented construction further aids in heat management, making these rotors suitable for daily driving and spirited use on vehicles such as the Lexus ES300h and Toyota RAV4.

Technical Specifications and Features

These rotors feature a nominal thickness of 1.102 inches (28.0 mm) and a discard thickness of 0.984 inches (25.0 mm), ensuring a long service life before replacement is necessary. The overall diameter measures 11.65 inches (295.9 mm), with an overall height of 1.953 inches (49.6 mm). The rotors include a floating disc mounting system and straight vane style for efficient airflow and cooling. The hat is coated to resist corrosion, and the rotor weighs approximately 16.35 lbs (7.43 kgs). Note that these rotors do not include ABS tone rings or bearings.

Compatible Vehicles and Applications

• Lexus ES300h, ES350
• Toyota Avalon, Camry, Corolla iM, Matrix, Mirai, RAV4
• Scion iM, tC
• Pontiac Vibe

This rotor is designed specifically for vehicles with a 5-lug wheel pattern, 4.5 inch (114.3 mm) bolt circle diameter, and 0.571 inch (14.5 mm) stud hole diameter.

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat buildup
• Uneven rotor wear and warping
• Reduced braking performance in wet conditions
• Corrosion and rust on rotor surfaces
• Brake noise and vibration due to glazing or pad deposits

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 0.984 inches before installation. Clean the rotor surface to remove any protective coatings or oils. Verify compatibility with your vehicle’s wheel bolt pattern and lug size. Since bearings and ABS tone rings are not included, reuse existing components or replace separately if needed. Proper torque specifications should be followed to avoid rotor warping.

Quality Assurance and Warranty

StopTech 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 here, StopTech products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.