Stoptech 227.47021L Disc Brake Rotor - Front Left

StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotor 227.47021L is engineered for enhanced braking performance on select Scion, Subaru, and Toyota models. Designed with a vented, slotted, and cross-drilled surface, this rotor improves heat dissipation and brake pad bite for consistent stopping power.

• Cross-drilled and slotted surface for improved heat dissipation and debris removal
• Vented rotor design to reduce brake fade under heavy use
• Nominal thickness of 0.945 inches (24.000 mm) with discard thickness at 0.866 inches (22.000 mm)
• Overall height of 2.232 inches (56.700 mm) and outside diameter of 11.555 inches (293.500 mm)
• Floating disc mounting with 5 lug holes sized 0.500 inches (12.700 mm)
• Compatible with ABS systems (ABS tone ring not included)
• Weight approximately 17.5 lbs (7.95 kgs)

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

The StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors line focuses on delivering reliable, performance-oriented rotors that balance durability and enhanced braking characteristics. Featuring a vented rotor design combined with cross-drilled holes and precision slots, this product line is tailored to improve cooling and maintain consistent brake pad contact, reducing fade and improving overall braking response for sport compact and performance vehicles.

Technical Specifications and Compatibility

This disc brake rotor (part number 227.47021L) is designed for use on various Scion, Subaru, and Toyota models including the Scion FR-S, Subaru BRZ, WRX, Forester, Crosstrek, Legacy, Outback, Impreza, Baja, and Toyota 86 and XV Crosstrek. The rotor features a 5-lug bolt pattern with a 100 mm (3.937 inch) bolt circle diameter and a center hole diameter of 2.283 inches (58.000 mm). The rotor is vented with straight vanes to optimize airflow and cooling during braking.

Common Applications and Problem Solving

• Reduces brake fade during aggressive driving or towing
• Improves heat dissipation to prevent rotor warping
• Enhances braking performance in wet or debris-prone conditions
• Maintains consistent brake pad contact for smoother stops
• Replaces worn or damaged rotors to restore factory braking feel

Installation Notes and Tips

Ensure compatibility with your vehicle’s make and model before installation. This rotor does not include bearings or an ABS tone ring, so verify if your vehicle requires these components separately. Proper torque specifications should be followed when mounting the rotor to the hub. It is recommended to replace brake pads simultaneously to ensure optimal performance and rotor longevity.

Quality Assurance and Warranty

StopTech rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The Select Sport Cross-Drilled & Slotted Disc Brake Rotors undergo rigorous quality control to ensure durability and consistent performance. Warranty coverage details should be confirmed with the manufacturer or authorized distributor.