Stoptech 127.45073L Disc Brake Rotor - Front Left

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor 127.45073L is engineered for Mazda 6 vehicles requiring reliable braking performance. Designed with precision, this vented rotor features a slotted and drilled surface to enhance heat dissipation and maintain consistent stopping power under demanding conditions.

• Cross-drilled and slotted surface for improved heat and gas dissipation
• Vented rotor design with straight vane style for efficient cooling
• Coated hat finish to resist corrosion and extend rotor life
• Nominal thickness of 0.980 inches (24.9 mm) with discard thickness at 0.906 inches (23.0 mm)
• Overall diameter of 12.587 inches (319.7 mm) and height of 1.819 inches (46.2 mm)
• Floating disc mounting with 5 lug holes and 4.5 inch bolt circle diameter
• Weight approximately 21.5 lbs (9.77 kgs) for balanced performance

Detailed Product Description

This StopTech Sport Cross-Drilled & Slotted Disc Brake Rotor, part number 127.45073L, is specifically designed for the Mazda 6, providing a direct replacement that meets OEM specifications. The rotor’s vented construction with straight vanes promotes effective airflow to reduce heat buildup during braking, which helps prevent brake fade. The cross-drilled and slotted surface pattern aids in expelling brake dust, gases, and water, improving pad bite and overall braking consistency. The coated hat finish offers corrosion resistance, helping maintain the rotor’s structural integrity over time.

With a nominal thickness of 0.980 inches and a discard thickness of 0.906 inches, this rotor ensures durability and safety throughout its service life. The floating disc mounting design allows for slight movement to accommodate thermal expansion, reducing the risk of warping. The rotor’s dimensions, including a 12.587 inch outside diameter and 5 lug holes on a 4.5 inch bolt circle, are tailored for a precise fit on Mazda 6 models.

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Line

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line focuses on performance-oriented rotors that combine enhanced cooling features with surface treatments to improve braking efficiency. This product line is engineered to provide consistent pedal feel and improved heat management, making it suitable for both street and light track use. The 127.45073L rotor exemplifies these qualities with its vented design and cross-drilled, slotted surface, tailored for Mazda 6 applications.

Common Applications and Problem Solving

• Reduces brake fade during aggressive driving or heavy braking
• Improves heat dissipation to prevent rotor warping
• Enhances braking performance in wet conditions by channeling water away
• Minimizes brake dust buildup for cleaner rotor and pad contact
• Provides consistent pedal feel and stopping power for Mazda 6 vehicles

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (0.906 inches) before installation
• Clean rotor surface with brake cleaner to remove any protective coatings
• Check compatibility with Mazda 6 lug pattern: 5 lug holes on 4.5 inch bolt circle
• Torque lug nuts to manufacturer specifications to avoid rotor damage
• Inspect brake pads and replace if worn to optimize rotor performance

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The 127.45073L rotor undergoes rigorous quality control to maintain dimensional accuracy and material integrity. 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 StopTech directly for exact warranty terms.