Dynamite Friction 631-63018L Disc Brake Rotor - Rear Left

Overview of DFC Brake Rotor for Mercedes-Benz SL Models

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-63018L) is engineered for select Mercedes-Benz vehicles including the 300SL, 500SL, SL320, and SL500. Designed to provide reliable braking performance, this rotor features a directional, drilled and slotted surface to enhance heat dissipation and maintain consistent stopping power.

• Compatible with Mercedes-Benz 300SL, 500SL, SL320, and SL500 models
• Part number 631-63018L for precise identification
• Directional drilled and slotted surface for improved brake cooling
• Solid disc rotor with zinc silver hat finish and rust-resistant coating
• 5 bolt holes with 112mm bolt circle diameter for secure fitment
• Nominal thickness of 9mm and discard thickness of 7.3mm
• Overall diameter of 278mm and height of 58.3mm

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 on the braking surface. This design helps to reduce brake fade by allowing gases and heat to escape more efficiently during braking. The silver zinc coating on the rotor hat provides corrosion resistance, extending the rotor's service life. This product line is tailored for drivers seeking rotors that maintain performance under demanding conditions while fitting specific Mercedes-Benz SL models.

Technical Specifications and Features

This disc brake rotor is a solid type, measuring 278mm in outside diameter and 58.3mm in overall height. It features a plain disc finish with a zinc silver hat finish that resists rust. The rotor includes five bolt holes with a 112mm bolt circle diameter and a center hole diameter of 67mm, ensuring proper alignment and fitment. The surface is directional with both drilled holes and slots, designed to improve braking efficiency and reduce heat buildup. The nominal thickness is 9mm, with a discard thickness of 7.3mm, indicating when the rotor should be replaced to maintain safety and performance.

Applications and Problem Solving

• Replacement rotor for worn or warped brake discs on Mercedes-Benz 300SL, 500SL, SL320, and SL500
• Improves heat dissipation to reduce brake fade during aggressive or prolonged braking
• Helps maintain consistent braking performance under high-stress conditions
• Addresses corrosion issues with rust-resistant coating for longer rotor life
• Restores proper braking surface for enhanced safety and control

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 7.3mm before installation. Clean the hub surface and mounting points to prevent uneven rotor seating. Use the correct torque specifications for the 5 bolt holes with a 112mm bolt circle diameter. Since this rotor is directional, verify the rotation direction matches the vehicle’s wheel rotation for optimal performance. No additional hardware is included, so use existing or manufacturer-recommended components during installation.

Quality Assurance and Warranty

Dynamite Friction manufactures the 631-63018L rotor to meet OEM specifications for Mercedes-Benz SL models. The rust-resistant zinc silver coating and precision machining ensure durability and reliable performance. Warranty details are subject to the manufacturer’s terms and conditions; please consult Dynamite Friction or authorized distributors for specific warranty information.