Stoptech 128.62055L Disc Brake Rotor - Front Left

StopTech Sport Cross-Drilled Disc Brake Rotors Overview

The StopTech Sport Cross-Drilled Disc Brake Rotor 128.62055L is engineered for reliable braking performance on select Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac vehicles. Designed to meet the demands of both street and light performance driving, this rotor offers enhanced heat dissipation and consistent stopping power.

• Cross-drilled surface for improved heat dissipation and reduced brake fade
• Vented rotor design with straight vane style for efficient cooling
• Coated hat finish to resist corrosion and extend rotor life
• Floating disc mounting for better thermal expansion management
• Compatible with 5-lug wheel setups, 16.2 mm stud diameter
• Nominal thickness of 1.272 inches (32.3 mm) with discard thickness at 1.223 inches (31.06 mm)
• Outside diameter of 11.929 inches (303 mm) and overall height of 2.043 inches (51.9 mm)

About StopTech Sport Cross-Drilled Disc Brake Rotors

The StopTech Sport Cross-Drilled Disc Brake Rotors line is designed to provide enhanced braking performance through improved heat management and durability. The cross-drilled surface pattern helps dissipate heat and gases generated during braking, reducing the risk of brake fade under demanding conditions. The vented rotor design with straight vanes promotes airflow to maintain optimal operating temperatures. This rotor line is coated on the hat area to protect against corrosion, ensuring longevity and consistent performance over time.

Detailed Product Description

Part number 128.62055L is a vented disc brake rotor featuring a cross-drilled surface type, specifically engineered for vehicles such as the Buick Aurora, Cadillac DeVille, Chevrolet Camaro, Oldsmobile Intrigue, and Pontiac Firebird. The rotor’s floating disc mounting allows for controlled thermal expansion, reducing the risk of warping during heavy braking. With a 5-lug hole pattern and a mounting bolt hole circle diameter of 118 mm (4.646 inches), this rotor fits securely on compatible wheel hubs. The coated hat finish provides corrosion resistance, while the straight vane style enhances cooling efficiency. Weighing approximately 17 lbs (7.73 kg), this rotor balances durability with manageable weight for improved vehicle dynamics.

Common Applications and Problem Solving

• Reduces brake fade during spirited driving or towing
• Improves heat dissipation to prevent rotor warping
• Minimizes brake dust buildup with cross-drilled design
• Enhances braking consistency on Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models
• Replaces worn or damaged rotors to restore factory braking performance

Installation Notes and Tips

• Ensure compatibility with vehicle make and model before installation
• Check rotor thickness and discard limits; replace if below 1.223 inches (31.06 mm)
• Use proper torque specifications for mounting bolts to avoid rotor distortion
• 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 Sport Cross-Drilled Disc Brake Rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The coated hat finish and vented design contribute to long service life and reliable braking 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 manufacturer resources for exact warranty terms.