Stoptech 127.45069L 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 127.45069L) are engineered for Mazda 3, Mazda 3 Sport, and Mazda 5 models. Designed to enhance braking performance, these rotors feature a vented, cross-drilled, and slotted surface to improve heat dissipation and reduce brake fade under demanding conditions.

• Compatible with Mazda 3, Mazda 3 Sport, and Mazda 5
• Part Number: 127.45069L
• Vented disc brake rotor with cross-drilled and slotted surface
• Coated hat finish for corrosion resistance
• Floating disc mounting design
• Outside diameter: 11.811 inches (300 mm)
• Nominal thickness: 0.984 inches (25 mm)
• Discard thickness: 0.906 inches (23 mm)
• Overall height: 1.913 inches (48.6 mm)
• 5 lug holes with 4.5 inch (114.3 mm) bolt circle diameter
• Weight approximately 15.5 lbs (7.05 kg)

Detailed Product Description

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors are designed to provide consistent braking performance for Mazda 3, Mazda 3 Sport, and Mazda 5 vehicles. The vented rotor design features straight vanes that promote efficient airflow, helping to dissipate heat generated during braking. The cross-drilled and slotted surface improves pad bite and helps evacuate gases, dust, and water from the rotor surface, which can enhance braking response and reduce the risk of brake fade.

The rotor’s coated hat finish offers protection against corrosion, extending the service life of the rotor in various driving conditions. The floating disc mounting design allows for slight movement between the rotor and hub, which can help reduce stress and improve rotor longevity. With a nominal thickness of 0.984 inches (25 mm) and a discard thickness of 0.906 inches (23 mm), these rotors meet strict specifications for safe and reliable braking.

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is engineered for drivers seeking improved braking performance and durability. This product line combines cross-drilled holes and precision slots to enhance cooling and maintain clean rotor surfaces. These rotors are vented and coated to resist corrosion and maintain structural integrity under high thermal loads, making them suitable for both street and light performance driving applications.

Common Applications and Problem Solving

• Reduces brake fade during aggressive or repeated braking
• Improves heat dissipation to prevent rotor warping
• Enhances braking response in wet or dusty conditions
• Minimizes brake dust buildup on rotor surface
• Extends rotor service life with corrosion-resistant coating

Installation Notes and Tips

• Ensure compatibility with Mazda 3, Mazda 3 Sport, and Mazda 5 models before installation
• Check rotor thickness and discard thickness to confirm replacement necessity
• Use proper torque specifications for the 5 lug bolts on the 4.5 inch bolt circle diameter
• Inspect brake pads and hardware during rotor replacement for optimal performance
• Follow manufacturer guidelines for bedding-in new rotors and pads

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The rotors undergo 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. Refer to StopTech or authorized distributors for exact warranty terms.