Dynamite Friction 633-31045L Disc Brake Rotor - Rear Left

Overview of the DFC Brake Rotor for BMW Z3

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Black (part number 633-31045L) is engineered specifically for BMW Z3 models. This solid disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation under demanding conditions.

• Compatible with BMW Z3 vehicles
• Part Number: 633-31045L
• Solid rotor with drilled and slotted surface
• Directional brake surface for optimized performance
• Rust resistant zinc black hat finish
• Nominal thickness: 10 mm; discard thickness: 8.4 mm
• 5 bolt holes with 14.6 mm diameter and 120 mm bolt circle diameter
• Outside diameter: 272 mm; overall height: 83.2 mm

Product Line Details: DFC Brake Rotor - Drilled and Slotted - Black

The DFC Brake Rotor - Drilled and Slotted - Black line by Dynamite Friction offers rotors designed with both drilled holes and slots to improve brake pad bite and aid in gas and heat dissipation. The black zinc coating on the rotor hat provides corrosion resistance, extending rotor life. This product line focuses on solid rotors with directional surfaces, suitable for vehicles like the BMW Z3 that require reliable braking under varied driving conditions.

Technical Specifications and Features

This disc brake rotor is constructed as a solid rotor with a nominal thickness of 10 mm and a discard thickness of 8.4 mm, ensuring safe replacement intervals. The rotor’s outside diameter measures 272 mm, with an overall height of 83.2 mm. It features a directional surface type combining drilled holes and slots, which helps reduce brake fade by improving heat dissipation and removing debris from the pad surface. The rotor hat is finished with a zinc black coating to resist rust and corrosion, maintaining structural integrity over time. The bolt pattern includes 5 holes with a diameter of 14.6 mm and a bolt circle diameter of 120 mm, matching the BMW Z3 specifications precisely.

Applications and Problem Solving

• Replacement rotor for worn or warped BMW Z3 brake rotors
• Improves heat dissipation to reduce brake fade during spirited driving
• Helps maintain consistent braking performance under wet conditions by channeling water away
• Addresses rotor corrosion issues with rust-resistant coating
• Restores proper braking surface for improved pad contact and stopping power

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 8.4 mm before installation. The rotor is designed for a 5-lug bolt pattern with 14.6 mm diameter holes and a 120 mm bolt circle diameter, compatible with BMW Z3 models. Clean the rotor surface of any protective coatings or oils before mounting to ensure optimal pad contact. Use proper torque specifications for lug nuts to avoid rotor warping. Directional rotors must be installed with the correct rotation direction as indicated on the rotor surface.

Quality Assurance

Dynamite Friction manufactures the 633-31045L rotor to meet OEM specifications for fit and function on BMW Z3 vehicles. The rust-resistant zinc black finish on the rotor hat enhances durability against corrosion. While no specific warranty information is provided, Dynamite Friction products are engineered for consistent performance and reliability in automotive braking applications.