Stoptech 128.62057L Disc Brake Rotor - Front Left

Overview of StopTech Sport Cross-Drilled Disc Brake Rotors

The StopTech Sport Cross-Drilled Disc Brake Rotor 128.62057L is engineered for reliable braking performance on select Buick, Oldsmobile, and Pontiac vehicles. Designed to meet the demands of both daily driving and spirited use, this rotor offers enhanced heat dissipation and consistent stopping power.

• Cross-drilled surface for improved heat and gas dissipation
• Vented rotor design to reduce brake fade
• Coated hat finish for corrosion resistance
• Floating disc mounting for better thermal expansion
• Compatible with 5-lug wheel configurations
• Nominal thickness of 1.272 inches (32.3 mm) with discard thickness at 1.223 inches (31.06 mm)
• Overall diameter of 10.945 inches (278 mm) and height of 2.047 inches (52 mm)
• Center hole diameter of 2.783 inches (70.7 mm) and mounting bolt circle diameter of 4.646 inches (118 mm)
• Weight approximately 15 lbs (6.82 kg)

StopTech Sport Cross-Drilled Disc Brake Rotors Product Line

The StopTech Sport Cross-Drilled Disc Brake Rotors line focuses on performance-oriented rotors that feature cross-drilled surfaces and vented designs. These rotors are engineered to improve braking efficiency by enhancing heat dissipation and reducing brake fade during demanding driving conditions. The coated hat finish helps protect against corrosion, extending rotor life. The floating disc mounting design allows for better thermal expansion, which contributes to consistent braking performance over time.

Detailed Product Description

This StopTech Sport rotor, part number 128.62057L, is a vented disc brake rotor with a cross-drilled surface type, designed to optimize airflow and heat dissipation. The vented design helps maintain cooler operating temperatures, reducing the risk of brake fade during extended use. The rotor’s coated hat finish provides resistance to rust and corrosion, which is especially beneficial in wet or humid environments. The floating disc mounting system allows the rotor to expand and contract with heat, minimizing warping and improving longevity.

With a nominal thickness of 1.272 inches (32.3 mm) and a discard thickness of 1.223 inches (31.06 mm), this rotor meets strict specifications for safe and effective braking. The rotor’s overall diameter of 10.945 inches (278 mm) and height of 2.047 inches (52 mm) ensure proper fitment on compatible vehicles. It features a 5-lug hole pattern with a mounting bolt circle diameter of 4.646 inches (118 mm), making it suitable for specific Buick, Oldsmobile, and Pontiac models.

Compatible Vehicles and Applications

• Buick models including Century, LeSabre, Regal, and Park Avenue
• Oldsmobile models such as 88 and LSS
• Pontiac models including Bonneville, Grand Prix, and Montana
• Other compatible models: Intrigue, Silhouette, Trans Sport, Regency

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat buildup
• Warping or uneven rotor wear
• Corrosion and rust on rotor surfaces
• Reduced braking performance under heavy use
• Noise and vibration from worn or damaged rotors

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean rotor surface to remove any protective coatings or debris
• Check compatibility with vehicle’s lug pattern and mounting specifications
• Use proper torque specifications on lug nuts to avoid rotor warping
• Inspect brake pads and calipers during installation for optimal performance

Quality Assurance and Warranty

StopTech Sport Cross-Drilled Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The coated finish and vented design contribute to durability and consistent braking performance. While specific warranty details are not provided here, StopTech products typically come with a limited warranty against defects in materials and workmanship. It is recommended to consult the product documentation or manufacturer for exact warranty terms.