Dynamite Friction 631-63078L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-63078L) is engineered for reliable braking performance on select Mercedes-Benz models. Designed with a solid, directional rotor surface, this disc brake rotor offers enhanced heat dissipation and consistent stopping power.

• Compatible with Mercedes-Benz CL550, S400, S550, and SL550
• Solid disc brake rotor with drilled and slotted surface
• Overall diameter of 300 mm and height of 58.5 mm
• Rust-resistant zinc silver hat finish for durability
• 5 bolt holes with a 112 mm bolt circle diameter
• Nominal thickness of 12 mm and discard thickness of 10 mm
• Directional rotor design for optimized braking efficiency

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

The DFC Brake Rotor - Drilled and Slotted - Silver line from Dynamite Friction focuses on rotors that combine drilled holes and slots to improve brake pad bite and heat dissipation. This design helps reduce brake fade and maintain consistent braking performance under demanding conditions. The silver zinc coating on the rotor hat provides corrosion resistance, extending the rotor's service life on Mercedes-Benz vehicles.

Technical Specifications and Features

This disc brake rotor features a solid construction with a 300 mm outside diameter and a 58.5 mm overall height. The rotor surface is both drilled and slotted, which aids in venting gases and debris from the brake pad interface. The rotor is directional, meaning it is designed to rotate in a specific direction to maximize cooling and braking efficiency. The zinc silver hat finish offers rust resistance, helping maintain structural integrity over time. With 5 bolt holes spaced on a 112 mm bolt circle diameter, this rotor fits securely on compatible Mercedes-Benz models. The nominal thickness is 12 mm, with a discard thickness of 10 mm, indicating when the rotor should be replaced to maintain safe braking performance.

Applications and Problem Solving

• Replacement rotor for worn or warped brake rotors on Mercedes-Benz CL550, S400, S550, and SL550
• Improves heat dissipation to reduce brake fade during heavy braking
• Helps maintain consistent braking performance under high-stress conditions
• Rust-resistant coating prevents corrosion-related rotor damage
• Directional design enhances braking efficiency and pad contact

Installation Notes and Tips

Ensure the rotor is installed with the correct orientation to match the directional surface pattern. Verify bolt hole alignment with the vehicle’s hub using the 5-bolt, 112 mm bolt circle diameter specification. Measure rotor thickness before installation to confirm it meets or exceeds the nominal thickness of 12 mm. Replace the rotor if thickness is at or below the discard thickness of 10 mm. Clean the rotor surface to remove any protective coatings or debris before mounting brake pads.

Quality Assurance

Dynamite Friction manufactures the 631-63078L rotor to meet OEM specifications for Mercedes-Benz vehicles. The rust-resistant zinc silver finish and precision machining ensure durability and reliable performance. While no specific warranty information is provided, this rotor is designed to maintain consistent braking characteristics when installed and maintained properly.