Dynamite Friction 631-73041L Disc Brake Rotor - Front Left

Overview of the DFC Brake Rotor - Drilled and Slotted - Silver

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-73041L) is engineered for Audi and Volkswagen vehicles, including models like the A4, A6, Passat, and 100 Quattro. This vented disc brake rotor features a directional, slotted, and drilled surface designed to enhance braking performance and heat dissipation.

• Compatible with Audi and Volkswagen models: A4, A4 Quattro, A6, A6 Quattro, Passat, 100, and 100 Quattro
• Part number: 631-73041L
• Vented disc brake rotor with drilled and slotted surface
• Nominal thickness: 25 mm; discard thickness: 23 mm
• Rust-resistant zinc silver hat finish with plain disc finish
• 5 bolt holes with a bolt circle diameter of 112 mm
• Directional brake surface for optimized performance

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

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction offers rotors designed with enhanced cooling and braking efficiency in mind. The drilled and slotted surface pattern helps reduce brake fade by allowing gases and debris to escape, while the vented rotor design improves heat dissipation. The zinc silver coating on the hat provides corrosion resistance, extending rotor life in demanding conditions.

Technical Specifications and Features

This disc brake rotor measures 288 mm in outside diameter and has an overall height of 46.9 mm. The rotor is vented to improve airflow and cooling during braking. It features a directional surface type with both drilled holes and slots, which aid in maintaining consistent braking performance under heavy use. The rotor’s nominal thickness is 25 mm, with a discard thickness of 23 mm, ensuring clear service limits for safety. The hat finish is zinc silver, providing rust resistance, while the disc finish is plain. The rotor includes 5 bolt holes and lug holes, each with a diameter of 15.5 mm, arranged on a 112 mm bolt circle diameter.

Applications and Problem Solving

• Improves braking performance on Audi A4, A6, Passat, and Volkswagen 100 Quattro models
• Reduces brake fade during aggressive or prolonged braking
• Helps prevent rotor warping by enhancing heat dissipation
• Minimizes rust and corrosion with zinc silver coating
• Maintains consistent braking feel with directional drilled and slotted design

Installation Notes and Tips

Ensure the rotor is installed with the directional surface facing the correct rotation direction for optimal performance. Verify bolt hole alignment with the vehicle’s hub using the 5-bolt pattern and 112 mm bolt circle diameter. Check rotor thickness before installation to confirm it meets or exceeds the nominal thickness of 25 mm and is above the discard thickness of 23 mm. Clean the rotor surface to remove any protective coatings or residues before mounting brake pads.

Quality Assurance

Dynamite Friction manufactures the 631-73041L rotor to meet OEM specifications for Audi and Volkswagen vehicles. The rust-resistant zinc silver hat finish and vented rotor design contribute to durability and long service life. While no specific warranty information is provided, the rotor is engineered to maintain performance and safety standards consistent with professional automotive requirements.