Dynamite Friction 631-13021L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-13021L) is engineered for Subaru vehicles including the BRZ, Forester, Impreza, Legacy, Outback, and WRX. This solid disc brake rotor features a directional, slotted and drilled surface designed to enhance braking performance and heat dissipation.

• Nominal thickness: 10 mm with discard thickness at 8.5 mm
• Solid rotor design with drilled and slotted surface
• Zinc silver hat finish with rust-resistant coating
• Directional brake surface for optimized braking
• Five bolt holes with 13 mm diameter and 100 mm bolt circle diameter
• Overall diameter of 286 mm and height of 63.6 mm

Detailed Product Features and Specifications

This DFC Brake Rotor - Drilled and Slotted - Silver is a solid rotor with a nominal thickness of 10 mm and a discard thickness of 8.5 mm, ensuring reliable service life and safety margins. The rotor’s surface is both drilled and slotted, which helps to reduce brake fade by improving heat dissipation and allowing gases and debris to escape during braking. The directional design of the brake surface is intended to optimize performance when installed correctly according to rotation direction.

The rotor features a zinc silver hat finish that provides corrosion resistance, complemented by an overall rust-resistant coating to extend durability in various driving conditions. It has five bolt holes with a diameter of 13 mm and a bolt circle diameter of 100 mm, matching the stud/lug hole pattern for secure fitment. The center hole diameter is 58 mm, and the rotor’s overall diameter is 286 mm with a height of 63.6 mm, making it compatible with specific Subaru models.

About the DFC Brake Rotor - Drilled and Slotted - Silver Product Line

The DFC Brake Rotor - Drilled and Slotted - Silver line from Dynamite Friction focuses on providing rotors that combine drilled and slotted surfaces with corrosion-resistant finishes. This product line is designed to meet the demands of drivers seeking improved braking performance and rotor longevity, particularly for vehicles like the Subaru BRZ, Forester, Impreza, Legacy, Outback, and WRX. The silver zinc finish and rust-resistant coating help maintain rotor integrity over time.

Applications and Problem Solving

• Reduces brake fade during aggressive or prolonged braking
• Improves heat dissipation to maintain consistent braking performance
• Helps prevent rotor warping caused by excessive heat buildup
• Minimizes surface corrosion for longer rotor life
• Compatible with Subaru models requiring a 286 mm diameter solid rotor

Installation Notes and Tips

Ensure the rotor is installed with the directional surface oriented correctly according to the vehicle’s rotation direction. Verify bolt hole alignment with the vehicle’s hub using the 5-bolt, 100 mm bolt circle pattern. Check rotor thickness before installation to confirm it is above the discard thickness of 8.5 mm. Proper torque specifications should be followed to avoid rotor damage or uneven wear.

Quality Assurance and Warranty

Dynamite Friction manufactures this rotor to meet industry standards for fitment and performance. The rust-resistant coating and zinc silver hat finish contribute to durability under normal operating conditions. Please refer to Dynamite Friction’s warranty policy for specific coverage details related to the 631-13021L brake rotor.