Stoptech 227.44109R Disc Brake Rotor - Front Right

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

The StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors (part number 227.44109R) are engineered for Toyota 4Runner and Tacoma models. These vented rotors feature a slotted and drilled surface design to enhance braking performance and heat dissipation under demanding conditions.

• Compatible with Toyota 4Runner and Tacoma vehicles
• Part number 227.44109R for precise fitment
• Vented rotor design with straight vane style for improved cooling
• Cross-drilled and slotted surface to reduce brake fade and improve pad bite
• Floating disc mounting for better rotor alignment and performance
• Nominal thickness of 0.854 inches (21.7 mm) and discard thickness of 0.787 inches (20.0 mm)
• Overall height of 2.776 inches (70.5 mm) and outside diameter of 11.685 inches (296.8 mm)
• 6 lug holes with a bolt circle diameter of 5.5 inches (139.7 mm)
• Weight approximately 13.5 lbs (6.14 kgs)

About the StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors Line

The StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to provide enhanced braking performance for street and light track use. Featuring a combination of cross-drilled holes and precision-machined slots, these rotors improve pad bite and help evacuate gases and debris. The vented rotor design with straight vanes promotes consistent cooling, reducing the risk of brake fade during extended use. This product line balances performance and durability, making it suitable for Toyota 4Runner and Tacoma owners seeking reliable braking upgrades.

Technical Details and Specifications

This disc brake rotor is vented with straight vane style to optimize airflow and heat dissipation. The rotor’s nominal thickness is 0.854 inches (21.7 mm), with a discard thickness of 0.787 inches (20.0 mm), ensuring a clear service limit for safe operation. The overall height measures 2.776 inches (70.5 mm), and the outside diameter is 11.685 inches (296.8 mm). It features a floating disc mounting system to allow slight movement for better alignment and reduced stress on the braking system. The rotor includes six stud/lug holes with a diameter of 0.575 inches (14.6 mm) and a mounting bolt hole circle diameter of 5.5 inches (139.7 mm). This rotor does not include an ABS tone ring or bearings.

Common Applications and Problem Solving

• Improves braking performance on Toyota 4Runner and Tacoma models
• Reduces brake fade during heavy or repeated braking
• Enhances heat dissipation to prevent rotor warping
• Minimizes brake dust and debris buildup on rotor surface
• Provides consistent pad bite for improved stopping power

Installation Notes and Tips

• Ensure compatibility with Toyota 4Runner and Tacoma before installation
• Check rotor thickness and discard limits regularly to maintain safety
• Use proper torque specifications for lug nuts to avoid rotor damage
• Inspect brake pads and calipers during rotor replacement for optimal performance
• Floating rotor design requires correct mounting to function properly

Quality Assurance and Warranty

StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors are manufactured to meet strict quality standards for durability and performance. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. It is recommended to consult the product documentation or manufacturer for exact warranty terms.