Centric 120.66074 Disc Brake Rotor - Front

Overview of Centric Premium Disc Brake Rotor 120.66074

The Centric Premium Disc Brake Rotor 120.66074 is engineered for reliable braking performance on heavy-duty Chevrolet and GMC trucks. Designed specifically for models like the Silverado 2500 HD and Sierra 3500 HD, this vented rotor ensures consistent heat dissipation and durability under demanding conditions.

• Compatible with Chevrolet Silverado 2500, 2500 HD, 3500, 3500 HD, Sierra 2500 HD, Sierra 3500 HD, and Suburban 3500 HD
• Vented disc brake rotor with smooth surface for optimal pad contact
• Coated hat finish to resist corrosion and extend rotor life
• 8 bolt holes with a 180 mm bolt circle diameter for secure mounting
• Nominal thickness of 40 mm and discard thickness of 38.5 mm for precise wear limits
• Overall diameter of 355 mm (13.976 inches) and overall height of 102 mm (4.016 inches)
• Floating disc mounting design for improved thermal expansion handling

About Centric Premium Disc Brake Rotors

The Centric Premium Disc Brake Rotors line focuses on delivering rotors that meet or exceed OEM specifications for fit, form, and function. This product line emphasizes quality materials and manufacturing processes to provide rotors that maintain consistent braking performance and durability. The 120.66074 rotor benefits from this approach, offering a coated hat finish and vented design to enhance corrosion resistance and heat dissipation for heavy-duty Chevrolet and GMC trucks.

Detailed Product Description

This Centric Premium Disc Brake Rotor 120.66074 features a vented design that improves airflow and heat dissipation, reducing the risk of brake fade during heavy use. The smooth surface finish ensures even brake pad wear and consistent stopping power. With an 8-bolt hole pattern and a 180 mm bolt circle diameter, it securely mounts to the hub, which has a center hole diameter of 127.1 mm (5.004 inches). The coated hat finish protects against rust and corrosion, extending the rotor's service life. The rotor's nominal thickness is 40 mm, with a discard thickness of 38.5 mm, providing clear wear limits for maintenance.

Applications and Problem Solving

• Replacement for worn or warped rotors on Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD
• Addresses brake pulsation caused by uneven rotor surfaces
• Improves braking performance under heavy load and towing conditions
• Prevents premature rotor corrosion and rust buildup
• Reduces brake fade during extended downhill braking or heavy-duty use

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (38.5 mm) before installation
• Clean hub mounting surface to prevent rotor runout
• Torque lug nuts to manufacturer specifications for proper fitment
• Check compatibility with ABS systems; this rotor does not include an ABS tone ring
• Use proper brake pads designed for vented rotors to optimize performance

Quality Assurance and Warranty

Centric Premium Disc Brake Rotors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details for part number 120.66074 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Always consult product documentation or the manufacturer for exact warranty terms.