Dynamite Friction 631-27039L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-27039L) is engineered for Volvo XC90 models requiring reliable braking performance. This vented disc brake rotor features a directional, drilled and slotted surface designed to enhance heat dissipation and maintain consistent stopping power under demanding conditions.

• Compatible with Volvo XC90 vehicles
• Part number 631-27039L for precise identification
• Vented rotor design for improved cooling
• Directional drilled and slotted surface for enhanced brake pad bite and debris removal
• Rust-resistant zinc silver hat finish
• Plain disc finish with silver coating
• 5 bolt holes with 16.8 mm diameter and 108 mm bolt circle diameter
• Nominal thickness of 20 mm and discard thickness of 18 mm
• Overall height and rotor height of 64.8 mm
• Outside diameter of 308 mm

Details on the DFC Brake Rotor - Drilled and Slotted - Silver Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and slots on the braking surface. This design improves water, gas, and dust evacuation from the rotor surface, which helps maintain consistent braking performance. The silver zinc coating on the rotor hat provides corrosion resistance, extending the rotor's service life. This product line is tailored for drivers who require rotors that balance performance and durability, specifically engineered for vehicles like the Volvo XC90.

Technical Specifications and Features

This disc brake rotor is vented to allow air circulation between the rotor surfaces, reducing heat buildup during braking. The directional drilled and slotted surface enhances pad bite and helps prevent brake fade by efficiently dissipating heat and gases. The rotor measures 308 mm in outside diameter with a nominal thickness of 20 mm and a discard thickness of 18 mm, ensuring it meets Volvo XC90 braking system requirements. The rotor includes five bolt holes with a diameter of 16.8 mm arranged on a 108 mm bolt circle diameter, matching the vehicle's hub specifications. The zinc silver hat finish provides rust resistance, protecting the rotor from corrosion over time.

Applications and Problem Solving

• Replacement rotor for worn or warped brake rotors on Volvo XC90
• Improves braking performance in wet or dusty conditions with drilled and slotted design
• Helps reduce brake fade during extended or heavy braking
• Prevents rust and corrosion on rotor hats for longer service life
• Maintains proper rotor thickness and fitment for safe braking operation

Installation Notes and Tips

Ensure the rotor is installed on a compatible Volvo XC90 model and that the part number 631-27039L matches the vehicle’s specifications. Clean the rotor surface before installation to remove any protective coatings or residues. Verify that the bolt hole pattern and diameter align with the vehicle hub. Proper torque specifications should be followed when securing the rotor to avoid warping. It is recommended to inspect brake pads and other braking components during rotor replacement for optimal system performance.

Quality Assurance and Warranty

Dynamite Friction manufactures the DFC Brake Rotor - Drilled and Slotted - Silver to meet or exceed OEM standards for fit, form, and function. The rotor includes a rust-resistant coating to enhance durability. Warranty details are provided by the manufacturer and should be reviewed prior to installation to ensure coverage and support.