Dynamite Friction 631-47009L Disc Brake Rotor - Front Left

Reliable Performance with Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-47009L) offers a durable and efficient braking solution for select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. Designed to meet specific fitment requirements, this rotor ensures consistent stopping power and heat dissipation for models like the Camaro, Impala, and Bonneville.

• Part Number: 631-47009L
• Disc Type: Vented, drilled and slotted surface
• Nominal Thickness: 26.3 mm with a discard thickness of 24.5 mm
• Rust-resistant zinc silver hat finish
• Directional brake surface for optimized performance
• Bolt Hole Quantity: 5 with 7/16-20 diameter
• Outside Diameter: 280 mm, Overall Height: 118 mm
• Compatible with multiple GM models including Camaro, Firebird, and LeSabre

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 vented design and directional drilled and slotted surface. This rotor line focuses on improved heat dissipation and debris removal, which helps maintain consistent brake performance under demanding conditions. The zinc silver coating on the hat offers additional corrosion resistance, extending the rotor's service life.

Technical Details and Specifications

This disc brake rotor features a vented design with a 280 mm outside diameter and an overall height of 118 mm, suitable for vehicles requiring precise fitment. The rotor’s nominal thickness is 26.3 mm, with a discard thickness of 24.5 mm, ensuring safe replacement intervals. The drilled and slotted surface is directional, designed to optimize braking by reducing heat buildup and improving pad bite. The rotor includes five bolt holes with a 7/16-20 diameter and a bolt circle diameter of 120.7 mm, matching the stud/lug hole circle diameter for secure mounting.

Compatible Vehicles and Applications

• Buick models such as LeSabre and Skylark
• Chevrolet models including Camaro, Caprice, and Impala
• Oldsmobile models like Delta 88 and Cutlass
• Pontiac models including Firebird, Bonneville, and Catalina

This rotor is ideal for drivers seeking replacement parts that meet factory specifications for these GM vehicles.

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat buildup
• Uneven brake pad wear due to rotor surface imperfections
• Corrosion and rust on rotor surfaces affecting braking performance
• Vibration or pulsation during braking from warped rotors
• Reduced stopping power in wet or debris-filled conditions

Installation Notes and Tips

Ensure the rotor surface is clean and free of contaminants before installation. Verify the bolt hole pattern and diameter match your vehicle’s hub assembly. It is recommended to replace brake pads simultaneously to maintain optimal braking performance. Follow manufacturer torque specifications for lug nuts to avoid rotor warping. Directional rotors should be installed with the correct rotation direction as indicated by the rotor markings.

Quality Assurance and Warranty

Dynamite Friction manufactures this rotor to meet or exceed OEM standards for durability and performance. The rust-resistant zinc silver coating helps protect against corrosion, extending the rotor’s lifespan. While specific warranty details are not provided, Dynamite Friction products typically undergo rigorous quality control to ensure reliability and consistent braking performance.