Stoptech 227.44129L 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 227.44129L is engineered for Toyota 4Runner, FJ Cruiser, and Tacoma models. Designed to enhance braking performance, this vented rotor features a cross-drilled and slotted surface for improved heat dissipation and consistent stopping power.

• Compatible with Toyota 4Runner, FJ Cruiser, and Tacoma
• Part number: 227.44129L
• Vented disc brake rotor with cross-drilled and slotted surface
• Nominal thickness: 1.102 inches (28.000 mm)
• Discard thickness: 1.024 inches (26.000 mm)
• Outside diameter: 12.559 inches (319.000 mm)
• Overall height: 2.657 inches (67.500 mm)
• Floating disc mounting with 6 lug holes (0.571 inch diameter)
• Straight vane style for efficient cooling

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

The StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to provide enhanced braking performance through improved heat management and debris removal. The combination of cross-drilled holes and precision slots helps maintain rotor surface integrity under demanding conditions, reducing brake fade and improving pedal feel. This rotor line is suitable for drivers seeking reliable, consistent braking on Toyota 4Runner, FJ Cruiser, and Tacoma vehicles.

Technical Specifications and Features

This disc brake rotor features a vented design with straight vanes to optimize airflow and cooling during braking. The rotor’s nominal thickness is 1.102 inches (28.000 mm), with a discard thickness of 1.024 inches (26.000 mm), ensuring a long service life before replacement is necessary. The rotor measures 12.559 inches (319.000 mm) in outside diameter and has an overall height of 2.657 inches (67.500 mm). It mounts using a floating disc system with a 6-lug hole pattern, each hole measuring 0.571 inches (14.500 mm) in diameter, and a mounting bolt hole circle diameter of 5.500 inches (139.700 mm). The center hole diameter is 4.252 inches (108.000 mm). This rotor does not include ABS tone rings or bearings.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Toyota 4Runner, FJ Cruiser, and Tacoma
• Improves heat dissipation to reduce brake fade during heavy braking
• Helps eliminate brake noise and vibration caused by rotor surface irregularities
• Enhances braking performance in off-road or towing conditions
• Maintains consistent pedal feel under repeated braking cycles

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (1.024 inches) before installation
• Verify compatibility with vehicle lug pattern and mounting specifications
• Clean rotor surface before installation to remove any protective coatings
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Inspect brake pads for wear and replace if necessary to ensure optimal performance

Quality Assurance and Warranty

StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. Each rotor undergoes rigorous quality control to ensure durability and consistent performance. 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 the manufacturer for exact warranty terms.