Dynamic Friction 604-02000 Disc Brake Rotor - Front

DFC GEOSPEC Coated Rotor for Porsche 911

The Dynamic Friction DFC GEOSPEC Coated Rotor, part number 604-02000, is a solid front disc brake rotor built for select classic Porsche 911 applications. It is sized for the original braking setup with an outside diameter of 282 mm, a height of 36.7 mm, and a 5-bolt pattern with 8.5 mm bolt holes.

For Porsche 911 front brake service, this rotor line focuses on fitment accuracy and corrosion-resistant coating for the rotor surface. The DFC GEOSPEC Coated Rotor designation identifies the product line used for direct replacement applications where consistent dimensions matter.

Key Features

• Part number 604-02000
• Solid disc brake rotor construction
• Outside diameter: 282 mm
• Height: 36.7 mm
• Inside diameter: 107 mm
• 5 bolt holes with 8.5 mm bolt hole diameter
• Nominal thickness: 12.1 mm
• Discard thickness: 11.4 mm
• DFC GEOSPEC coated rotor finish

Detailed Description

This Dynamic Friction rotor is engineered for front brake applications on classic Porsche 911 models. It matches the listed solid rotor configuration and dimensions used on 1965-1973 Porsche 911 front brake systems, including 1969-1973 models with solid rotors and front cast iron "M" calipers. The 604-02000 rotor is specified with a 282 mm outside diameter, 107 mm inside diameter, and 36.7 mm overall height to support proper brake fitment.

The GEOSPEC coated rotor line is intended to provide a coated braking surface and rotor finish for replacement service where dimensional consistency is critical. If you are sourcing a front brake rotor for a Porsche 911, this part number 604-02000 is the direct-fit reference to verify against your existing rotor measurements and brake hardware configuration.

What This Rotor Helps Address

• Front brake rotor wear on classic Porsche 911 models
• Rotor thickness loss approaching discard specification
• Brake pulsation caused by worn or out-of-spec rotors
• Corrosion on the rotor surface and hat area
• Incorrect rotor dimensions during brake restoration or replacement

Installation Notes and Tips

• Verify the rotor is for the front position before installation.
• Confirm solid rotor configuration and compare all dimensions to the removed part.
• Check caliper type on 1969-1973 Porsche 911 applications, including front cast iron "M" calipers.
• Inspect pads, calipers, and wheel bearings during brake service.
• Clean the rotor surface before final assembly to remove any protective residue.

Quality Assurance

DFC GEOSPEC coated rotors are built around application-specific dimensions for direct replacement use. Confirm fitment by year, model, and brake configuration before ordering. Part number 604-02000 is listed for 1965-1973 Porsche 911 front brake applications.