Stoptech 227.44083L 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 227.44083L is engineered for Lexus models including GS300, GS400, GS430, IS300, LS400, SC300, SC400, and SC430. Designed to enhance braking performance, this vented rotor features a slotted and drilled surface for improved heat dissipation and consistent stopping power.

• Cross-drilled and slotted surface for efficient heat and gas dissipation
• Vented rotor design to reduce brake fade under heavy use
• Nominal thickness of 1.260 inches (32.000 mm) with discard thickness at 1.181 inches (30.000 mm)
• Overall height of 2.000 inches (50.800 mm) and outside diameter of 11.650 inches (295.900 mm)
• Floating disc mounting with 5 lug holes and a 4.500 inch (114.300 mm) bolt circle diameter
• Compatible with Lexus GS300, GS400, GS430, IS300, LS400, SC300, SC400, and SC430

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 through improved rotor surface technology. Featuring a combination of cross-drilled holes and precision slots, these rotors help maintain cooler operating temperatures and reduce brake fade. The vented rotor design further supports heat dissipation, making this product line suitable for drivers seeking reliable stopping power in both daily driving and spirited conditions.

Detailed Product Description

This disc brake rotor, part number 227.44083L, is constructed with a vented design that promotes airflow between the rotor faces, helping to dissipate heat generated during braking. The cross-drilled holes and slots on the rotor surface aid in expelling gases, dust, and water, which can otherwise reduce braking efficiency. With a nominal thickness of 1.260 inches (32.000 mm) and a discard thickness of 1.181 inches (30.000 mm), this rotor maintains structural integrity and performance throughout its service life. The rotor’s overall height is 2.000 inches (50.800 mm), and it features a 5-lug hole pattern with a 4.500 inch (114.300 mm) bolt circle diameter, ensuring proper fitment on compatible Lexus models.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Lexus GS300, GS400, GS430, IS300, LS400, SC300, SC400, and SC430
• Improves braking consistency by reducing heat-related fade during aggressive driving
• Addresses brake noise and vibration caused by uneven rotor surfaces
• Enhances wet weather braking performance by channeling water away from the rotor surface
• Restores proper rotor thickness and structural integrity for safe braking

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (1.181 inches / 30.000 mm) before installation
• Verify compatibility with Lexus model and year to confirm correct fitment
• Use proper torque specifications on lug nuts to avoid rotor warping
• Inspect brake pads and replace if worn to maximize rotor performance
• Clean rotor surface with brake cleaner before installation to remove any protective coatings

Quality Assurance and Warranty

StopTech Select Sport Cross-Drilled & Slotted Disc Brake Rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. While specific warranty details are not provided here, StopTech products typically come with a limited warranty covering defects in materials and workmanship. It is recommended to consult the product documentation or manufacturer for exact warranty terms.