Dynamite Friction 631-40051R Disc Brake Rotor - Front Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-40051R) is engineered for reliable braking performance on heavy-duty trucks. Designed specifically for Chevrolet, Dodge, and GMC models including K30, K3500, V30, V3500, W250, and W350, this rotor offers enhanced heat dissipation and consistent stopping power.

• Vented disc brake rotor with drilled and slotted surface
• Directional brake surface for optimized performance
• Rust resistant zinc silver hat finish
• Nominal thickness of 38.99 mm with discard thickness at 37.21 mm
• Eight bolt holes with 17.7 mm diameter and 165.1 mm bolt circle diameter
• Overall diameter of 327 mm and height of 78.2 mm
• Plain disc finish with zinc silver coated hat for corrosion resistance

Detailed Product Features and Specifications

This Dynamite Friction rotor features a vented design that improves airflow to reduce heat buildup during braking, which helps maintain consistent brake performance under heavy loads. The drilled and slotted surface enhances water and debris evacuation, reducing brake fade and improving pad bite. The directional surface pattern is engineered to optimize braking efficiency and rotor longevity.

The rotor’s zinc silver coated hat provides rust resistance, extending the service life in harsh environments. With a nominal thickness of 38.99 mm and a discard thickness of 37.21 mm, this rotor meets strict durability standards. The eight bolt holes with a 17.7 mm diameter and a 165.1 mm bolt circle diameter ensure secure mounting on compatible Chevrolet, Dodge, and GMC heavy-duty truck models.

DFC Brake Rotor - Drilled and Slotted - Silver Product Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on delivering rotors with enhanced heat dissipation and corrosion resistance. This product line combines drilled and slotted surface technology with a zinc silver coated hat finish to provide a balance of performance and durability, suitable for demanding applications on heavy-duty trucks like the Chevrolet K3500 and Dodge W350.

Applications and Problem Solving

• Improves braking performance on heavy-duty Chevrolet, Dodge, and GMC trucks
• Reduces brake fade caused by heat buildup during towing or hauling
• Minimizes rust and corrosion on rotor hats for longer service life
• Enhances water and debris removal to maintain consistent pad contact
• Provides reliable stopping power for trucks used in rugged or demanding conditions

Installation Notes and Tips

Ensure the rotor is compatible with your vehicle’s bolt pattern and dimensions before installation. The 8-bolt hole configuration with a 165.1 mm bolt circle diameter must match the hub assembly. Clean the rotor surface to remove any protective coatings before mounting. Proper torque specifications should be followed to avoid warping or uneven wear.

Quality Assurance and Warranty

Dynamite Friction manufactures this rotor to meet or exceed OEM specifications for fit, form, and function. The rust resistant zinc silver coating and vented design contribute to extended rotor life. Warranty details are provided by the manufacturer and should be reviewed prior to purchase.