Dynamite Friction 631-47042L Disc Brake Rotor - Rear Left

Reliable Performance with Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver offers a solid and durable braking solution for select Buick, Chevrolet, and Pontiac models. Designed to meet specific fitment requirements, this rotor ensures consistent stopping power and enhanced heat dissipation.

• Part Number: 631-47042L
• Disc Type: Solid, drilled and slotted surface
• Nominal Thickness: 14 mm with a discard thickness of 12.5 mm
• Rust-resistant zinc silver hat finish
• Directional brake surface for optimized performance
• 5 bolt holes with 14.2 mm diameter and 115 mm bolt circle diameter
• Overall diameter: 270 mm; height: 36.9 mm

About the DFC Brake Rotor - Drilled and Slotted - Silver Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction is engineered to provide enhanced braking efficiency through its directional, drilled, and slotted design. This rotor line features a rust-resistant zinc silver hat finish and a plain disc finish, combining durability with functional heat dissipation. The solid rotor construction supports consistent braking performance under various driving conditions.

Detailed Product Description

This disc brake rotor is specifically designed for compatibility with Buick Allure, Chevrolet Impala, Impala Limited, LaCrosse, and Pontiac Grand Prix models. The rotor features a 270 mm outside diameter and a 36.9 mm height, with a 70.8 mm center hole diameter to ensure proper fitment. The drilled and slotted surface helps reduce brake fade by improving heat dissipation and removing debris from the braking surface. The directional design optimizes airflow and braking efficiency. The zinc silver coating on the hat provides corrosion resistance, extending the rotor's service life. With 5 bolt holes sized at 14.2 mm and a 115 mm bolt circle diameter, this rotor matches factory specifications for secure installation.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on compatible Buick, Chevrolet, and Pontiac models
• Improves braking performance by reducing heat buildup during heavy braking
• Helps eliminate brake noise and vibration caused by uneven rotor surfaces
• Prevents rust and corrosion on the rotor hat for longer durability
• Maintains proper braking response with directional drilled and slotted design

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 12.5 mm before installation. Clean the rotor surface to remove any protective coating or debris prior to mounting. Verify bolt hole alignment with the vehicle’s hub using the 115 mm bolt circle diameter and 5 bolt holes. Proper torque specifications should be followed to avoid rotor warping. Directional rotors must be installed with the correct rotation direction for optimal performance.

Quality Assurance

Dynamite Friction manufactures this rotor to meet OEM specifications for fit and function. The rust-resistant coating and solid rotor design contribute to long-term reliability. While no specific warranty information is provided, the product is engineered for consistent braking performance on compatible Buick, Chevrolet, and Pontiac vehicles.