Dynamite Friction 631-47013R Disc Brake Rotor - Front Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-47013R) is engineered for reliable braking performance on select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. Designed with a vented, directional surface, this rotor enhances heat dissipation and braking consistency for models like the Cutlass, Grand Prix, and Monte Carlo.

• Disc type: Vented disc brake rotor with drilled and slotted surface
• Nominal thickness: 26.3 mm with discard thickness at 24.5 mm
• Overall diameter: 267 mm with 5 bolt holes (7/16-20 thread size)
• Hat finish: Zinc silver coating for corrosion resistance
• Rust resistant coating applied for extended durability
• Directional brake surface optimized for improved pad contact and debris removal
• Center hole diameter: 70.5 mm; bolt circle diameter: 120.7 mm

Details on the DFC Brake Rotor - Drilled and Slotted - Silver Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and slots to improve brake pad bite and heat dissipation. This design helps maintain consistent braking performance under demanding conditions by reducing brake fade and channeling away dust and gases. The silver zinc coating on the rotor hat adds a layer of rust resistance, extending the rotor’s service life on vehicles such as the Buick Regal and Chevrolet Malibu.

Technical Specifications and Features

This rotor features a vented design that allows air to flow between the rotor surfaces, enhancing cooling during braking. The drilled and slotted surface is directional, meaning it is designed to rotate in a specific direction to optimize performance. The rotor’s nominal thickness is 26.3 mm, with a discard thickness of 24.5 mm, ensuring safe replacement intervals. The 5-bolt hole pattern with a 7/16-20 thread size and a bolt circle diameter of 120.7 mm matches the factory specifications for compatible vehicles.

Applications and Problem Solving

• Replacement for worn or warped rotors on Buick Century and Pontiac Grand Am
• Improves braking response and reduces brake fade in Chevrolet El Camino and Oldsmobile Cutlass models
• Helps eliminate brake noise and vibration caused by uneven rotor surfaces
• Restores proper rotor thickness and surface condition for safe stopping distances
• Provides corrosion resistance to extend rotor lifespan in humid or salty environments

Installation Notes and Tips

Ensure the rotor is installed with the directional surface rotating correctly according to the vehicle’s forward motion. Verify bolt hole alignment and torque specifications to manufacturer standards. It is recommended to inspect brake pads and hardware during rotor replacement to maintain optimal braking system performance. Clean the rotor surface before installation to remove any protective coatings or residues.

Quality Assurance and Warranty

Dynamite Friction rotors are manufactured to meet or exceed OEM standards for fit and function. The rust resistant zinc silver finish and protective coatings contribute to long-term durability. While specific warranty details are not provided, Dynamite Friction products typically come with a limited warranty against manufacturing defects. Always consult product documentation or the manufacturer for exact warranty terms.