Dynamite Friction 830-73037L Disc Brake Rotor - Rear Left

Overview of the Dynamite Friction DFC Geoperformance Rotor

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-73037L) is engineered for Audi A4 and A4 Quattro models. This solid disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation.

• Compatible with Audi A4 and A4 Quattro vehicles
• Part number: 830-73037L
• Solid rotor with drilled and slotted surface
• Nominal thickness: 12 mm; discard thickness: 10 mm
• Overall height and rotor height: 36 mm
• Outside diameter: 287 mm
• Hat finish in Geospec silver grey with rust-resistant coating
• 5 bolt holes with 112.2 mm bolt circle diameter
• Directional brake surface for optimized performance

DFC Geoperformance Rotor - Drilled and Slotted Product Line

The DFC Geoperformance Rotor - Drilled and Slotted line by Dynamite Friction focuses on rotors that combine drilled holes and slots to improve brake pad bite and reduce heat buildup. This product line is designed to provide consistent braking performance under demanding conditions, making it suitable for Audi A4 and A4 Quattro drivers seeking reliable rotor upgrades.

Detailed Product Description

This disc brake rotor is a solid type with a nominal thickness of 12 mm and a discard thickness of 10 mm, ensuring durability and safety throughout its service life. The rotor’s surface is both drilled and slotted, which helps to evacuate gases, dust, and water from the braking surface, reducing brake fade and maintaining consistent stopping power. The directional surface design further optimizes braking efficiency by channeling debris away from the contact area.

The rotor measures 287 mm in outside diameter and 36 mm in overall height, fitting precisely on the hub with a center hole diameter of 68 mm. It features a Geospec silver grey hat finish that includes a rust-resistant coating to protect against corrosion and extend rotor life. The 5-bolt hole pattern with a 112.2 mm bolt circle diameter matches the factory specifications for Audi A4 and A4 Quattro models, ensuring proper fitment and installation.

Applications and Problem Solving

• Improves braking performance for Audi A4 and A4 Quattro vehicles
• Reduces brake fade during extended or aggressive braking
• Minimizes heat buildup with drilled and slotted design
• Prevents rust and corrosion with protective coating
• Maintains consistent brake pad contact and bite

Installation Notes and Tips

Ensure the rotor is installed on compatible Audi A4 or A4 Quattro models matching the 5-lug, 112.2 mm bolt circle pattern. Verify rotor thickness before installation; replace if below the discard thickness of 10 mm. Clean the rotor surface before mounting to remove any protective oils. Proper torque specifications should be followed for lug nuts to avoid warping.

Quality Assurance

Dynamite Friction manufactures the DFC Geoperformance Rotor - Drilled and Slotted to meet or exceed OEM standards for fit, form, and function. The rust-resistant coating enhances durability in various driving conditions. Please consult product documentation or contact the manufacturer for warranty details specific to part number 830-73037L.