Stoptech 127.44146L Disc Brake Rotor - Front Left

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 127.44146L) are engineered for reliable braking performance on select Lexus, Toyota, Pontiac, and Scion models. Designed with vented construction and a coated hat finish, these rotors provide enhanced heat dissipation and corrosion resistance for consistent stopping power.

• Cross-drilled and slotted surface for improved heat dissipation and brake pad cleaning
• Vented rotor design to reduce brake fade during extended use
• Coated hat finish to resist rust and corrosion
• Floating disc mounting for better rotor alignment and reduced stress
• Compatible with 5-lug wheel setups with a 114.3 mm bolt circle diameter

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 both daily driving and spirited use on vehicles like the Toyota Camry, Lexus ES350, and Scion tC.

Technical Specifications and Compatibility

This disc brake rotor features 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 rotor’s outside diameter measures 11.65 inches (295.9 mm), with an overall height of 1.953 inches (49.6 mm). It includes a 2.441 inch (62.0 mm) center hole diameter and supports a 5-stud lug pattern with 0.571 inch (14.5 mm) diameter holes. The rotor weighs approximately 16.35 lbs (7.43 kgs) and features straight vane style cooling for efficient heat dissipation. Note that this rotor does not include ABS tone rings or bearings.

Applications and Problem Solving

• Compatible with Lexus Avalon, ES300h, ES350; Toyota Camry, Corolla iM, Matrix, Mirai, RAV4; Pontiac Vibe; and Scion tC, iM models
• Helps reduce brake fade during heavy braking or extended driving
• Improves brake pad cleaning to maintain consistent friction
• Minimizes rotor warping through enhanced heat dissipation
• Resists corrosion with coated hat finish for longer rotor life

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Use proper torque specifications for the 5-lug mounting pattern (114.3 mm bolt circle)
• Check compatibility with vehicle ABS system as this rotor does not include an ABS tone ring
• Inspect brake pads and hardware during rotor replacement for optimal performance
• Follow manufacturer guidelines for bedding-in new rotors and pads

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 vented and coated design supports durability and consistent braking performance. Warranty coverage details should be confirmed with the original product documentation or authorized distributor.