Dynamite Friction 631-48092L Disc Brake Rotor - Rear Left

Reliable Performance for Chevrolet and GMC Heavy-Duty Trucks

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-48092L) is engineered to provide consistent braking performance for Chevrolet Silverado 3500 HD and GMC Sierra 3500 HD models. Designed with durability and heat dissipation in mind, this rotor supports heavy-duty applications where reliable stopping power is essential.

• Disc brake rotor with drilled and slotted surface for improved heat dissipation
• Nominal thickness of 40 mm with a discard thickness of 38 mm
• Directional brake surface design for optimized braking efficiency
• Zinc silver hat finish with rust-resistant coating to reduce corrosion
• Eight bolt holes with 16.2 mm diameter and 180 mm bolt circle diameter
• Outside diameter of 355 mm and height of 150.2 mm
• Center hole diameter of 144.1 mm for precise fitment

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

The DFC Brake Rotor - Drilled and Slotted - Silver product line by Dynamite Friction focuses on rotors that combine drilled holes and slots to enhance braking performance by improving heat dissipation and reducing brake fade. The silver zinc coating on the rotor hat provides additional protection against rust, making these rotors suitable for demanding environments and heavy-duty use, such as on Chevrolet Silverado 3500 HD and GMC Sierra 3500 HD trucks.

Technical Details and Features

This disc brake rotor features a plain disc finish with a surface that is both drilled and slotted, designed to maintain cooler operating temperatures and improve water and debris evacuation during braking. The rotor’s directional surface ensures optimal contact with brake pads, enhancing stopping power. With a nominal thickness of 40 mm and a discard thickness of 38 mm, the rotor maintains structural integrity under heavy loads. The zinc silver hat finish and rust-resistant coating extend the rotor’s service life by protecting against corrosion, which is critical for trucks exposed to harsh conditions.

Applications and Problem Solving

• Compatible with Chevrolet Silverado 3500 HD and GMC Sierra 3500 HD models requiring reliable heavy-duty braking components
• Helps reduce brake fade during extended braking periods
• Improves heat dissipation to prevent rotor warping
• Minimizes rust and corrosion for longer rotor lifespan
• Addresses uneven brake pad wear caused by overheating

Installation Notes and Tips

Ensure the rotor is installed with the directional surface oriented correctly according to the vehicle’s rotation. Verify bolt hole alignment with the eight 16.2 mm diameter holes and 180 mm bolt circle diameter. Measure rotor thickness before installation to confirm it meets or exceeds the nominal thickness of 40 mm and is above the discard thickness of 38 mm. Proper torque specifications should be followed to avoid rotor damage.

Quality Assurance

Dynamite Friction manufactures the 631-48092L rotor to meet industry standards for durability and performance. The rust-resistant coating and zinc silver hat finish contribute to extended service life. While no specific warranty information is provided, the rotor is designed for heavy-duty use on Chevrolet Silverado 3500 HD and GMC Sierra 3500 HD trucks, ensuring dependable braking under demanding conditions.