Stoptech 127.47021L 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 127.47021L) are engineered for enhanced braking performance and durability. Designed specifically for select Scion, Subaru, and Toyota models, these rotors provide reliable stopping power with improved heat dissipation and reduced brake fade.

• Cross-drilled and slotted surface for efficient heat and gas dissipation
• Vented rotor design to maintain optimal operating temperatures
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for improved rotor alignment and reduced stress
• Compatible with 5-lug wheel setups with a 100 mm bolt circle diameter

Detailed Product Features and Specifications

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors feature a 293.5 mm (11.555 inch) outside diameter and a nominal thickness of 24.0 mm (0.945 inch), with a discard thickness of 22.0 mm (0.866 inch). The rotors have an overall height of 56.7 mm (2.232 inches) and a center hole diameter of 58.0 mm (2.283 inches). The vented design incorporates straight vanes to optimize airflow and cooling during braking. The rotor weighs approximately 7.95 kg (17.5 lbs), balancing strength and weight for performance applications. The hat section is coated to protect against rust and corrosion, ensuring longevity under various driving conditions.

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to offer enhanced braking performance through advanced rotor surface technology. The combination of cross-drilled holes and precision slots helps to evacuate heat, brake dust, and gases generated during braking. This product line is ideal for drivers seeking improved pedal feel and consistent braking performance in both street and light track use. The floating disc mounting design further aids in reducing rotor warping and uneven wear.

Compatible Vehicles and Applications

This rotor is compatible with a range of Scion, Subaru, and Toyota models, including:

• Scion FR-S and Toyota 86/GR86
• Subaru BRZ
• Subaru WRX, Impreza, Legacy, Outback, Forester, Crosstrek, XV Crosstrek, and Baja

These rotors are designed to meet the specific mounting and dimensional requirements of these vehicles, ensuring proper fit and function.

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat buildup during aggressive driving
• Uneven rotor wear and warping from standard solid rotors
• Reduced braking efficiency due to gas and dust accumulation on rotor surface
• Corrosion and rust on rotor hats affecting longevity
• Inconsistent pedal feel under demanding driving conditions

Installation Notes and Tips

• Ensure rotor discard thickness (22.0 mm) is not exceeded before replacement
• Verify compatibility with vehicle’s 5-lug, 100 mm bolt circle wheel hubs
• Use proper torque specifications for mounting bolts to avoid rotor distortion
• Inspect brake pads for wear and replace if necessary when installing new rotors
• Clean rotor surface with brake cleaner before installation to remove any protective coatings

Quality Assurance and Warranty

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors are manufactured to meet strict quality standards for performance and durability. The coated hat finish provides corrosion resistance to extend service 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.