Dynamite Friction 631-48045R Disc Brake Rotor - Rear Right

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-48045R) is engineered for reliable braking performance on select Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models. Designed with a vented, directional surface, this rotor enhances heat dissipation and braking consistency for vehicles such as the Trailblazer, Envoy, and Jimmy.

• Disc type: Vented, directional drilled and slotted surface
• Nominal thickness: 20 mm with discard thickness at 18.5 mm
• Outside diameter: 325 mm; overall height: 85 mm
• Hat finish: Zinc silver with rust-resistant coating
• Bolt hole quantity: 6 with 13.2 mm diameter; bolt circle diameter: 127 mm
• Center hole diameter: 78.7 mm
• Surface finish: Plain disc with slotted and drilled braking surface

Detailed Product Description

This DFC Brake Rotor - Drilled and Slotted - Silver from Dynamite Friction features a vented rotor design that improves airflow and heat dissipation during braking. The directional drilled and slotted surface helps reduce brake fade and maintain consistent stopping power under demanding conditions. The rotor’s zinc silver hat finish and rust-resistant coating provide enhanced corrosion protection, extending the rotor’s service life. With a nominal thickness of 20 mm and a discard thickness of 18.5 mm, this rotor meets OEM specifications for thickness and durability.

Its 6-bolt hole configuration with a 127 mm bolt circle diameter ensures precise fitment on compatible vehicles. The rotor’s 325 mm outside diameter and 85 mm overall height are designed to match factory dimensions for a direct replacement without modification.

Compatible Vehicles and Applications

This rotor is compatible with a range of vehicles including Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models. Specifically, it fits models such as the 9-7x, Ascender, Bravada, Envoy, Envoy XL, Envoy XUV, Jimmy, Rainier, SSR, Trailblazer, and Trailblazer EXT. The part number 631-48045R ensures correct identification for these applications.

• Reduces brake fade and improves heat dissipation
• Restores braking performance on worn or damaged rotors
• Addresses vibration or pulsation during braking
• Prevents rust and corrosion buildup on rotor surface
• Maintains OEM fit and finish for reliable installation

Installation Notes and Tips

When installing the 631-48045R rotor, ensure the rotor surface is clean and free of any protective coatings before mounting. Verify the bolt hole alignment with the vehicle hub and torque bolts to manufacturer specifications. It is recommended to replace brake pads simultaneously to optimize braking performance. Check rotor thickness regularly and replace when reaching discard thickness of 18.5 mm.

Quality Assurance and Warranty

Dynamite Friction’s DFC Brake Rotor line is manufactured to meet or exceed OEM standards for durability and performance. The rust-resistant coating and zinc silver hat finish contribute to long-term reliability. While specific warranty details are not provided, Dynamite Friction products typically undergo rigorous quality control to ensure consistent performance in compatible Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab vehicles.