Stoptech 127.40017L Disc Brake Rotor - Rear Left

StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors (Part Number 127.40017L) are engineered for Acura and Honda vehicles, including popular models like the Accord, Civic, Civic del Sol, CRX, Integra, and Prelude. These solid rotors feature a slotted and drilled surface designed to improve braking performance and heat dissipation.

• Cross-drilled and slotted surface for enhanced cooling and debris removal
• Solid rotor design with a coated hat finish for corrosion resistance
• Nominal thickness of 0.354 inches (9.000 mm) with discard thickness at 0.315 inches (8.000 mm)
• Overall height of 1.898 inches (48.200 mm) and outside diameter of 9.409 inches (239.000 mm)
• Floating disc mounting with 4 stud/lug holes sized at 0.500 inches (12.700 mm)
• Weight approximately 8 lbs (3.64 kgs) for balanced performance

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

The StopTech Sport Cross-Drilled & Slotted Disc Brake Rotors line is designed to provide improved braking efficiency through enhanced heat dissipation and debris evacuation. The combination of cross-drilled holes and precision slots helps maintain consistent brake pad contact and reduces the risk of brake fade under demanding driving conditions. This product line is suitable for drivers seeking reliable performance upgrades for their Acura and Honda vehicles.

Detailed Product Description

This StopTech rotor (part number 127.40017L) is a solid disc brake rotor featuring a coated hat finish to resist corrosion and extend service life. The rotor’s cross-drilled and slotted surface improves airflow and helps remove brake dust and gases, which can accumulate during braking. With a nominal thickness of 0.354 inches (9.000 mm) and a discard thickness of 0.315 inches (8.000 mm), this rotor meets strict specifications for safe and effective braking. The rotor’s overall height is 1.898 inches (48.200 mm), and it has an outside diameter of 9.409 inches (239.000 mm), making it compatible with specific Acura and Honda models. The floating disc mounting and 4 lug holes (0.500 inches diameter) ensure proper fitment and secure installation.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors on Acura Accord and Honda Civic models
• Improves braking response and reduces brake fade during spirited driving
• Helps eliminate brake noise caused by uneven rotor surfaces
• Addresses rotor corrosion and surface damage from road conditions
• Enhances heat dissipation to maintain consistent braking performance

Installation Notes and Tips

• Ensure compatibility with your specific Acura or Honda model before installation
• Check rotor thickness and discard limits to confirm replacement necessity
• Use proper torque specifications for mounting bolts to avoid rotor warping
• Inspect brake pads and hardware during rotor replacement for optimal performance
• Perform a bed-in procedure after installation to maximize rotor and pad contact

Quality Assurance and Warranty

StopTech disc brake rotors are manufactured to meet or exceed OEM standards for durability and performance. The coated hat finish provides corrosion resistance to extend rotor life. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against manufacturing defects. Always consult the product documentation or manufacturer for exact warranty terms.