Dynamite Friction 631-42000L Disc Brake Rotor - Front Left

Overview of DFC Brake Rotor - Drilled and Slotted - Silver

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-42000L) is engineered for Jeep Commander and Grand Cherokee models. This vented disc brake rotor features a directional, slotted, and drilled surface designed to enhance braking performance and heat dissipation.

• Compatible with Jeep Commander and Grand Cherokee
• Directional slotted and drilled surface for improved brake response
• Vented rotor design for efficient heat dissipation
• Nominal thickness of 30 mm with discard thickness at 28.5 mm
• Zinc silver hat finish with rust-resistant coating
• 5 bolt holes with 16.24 mm diameter and 126.8 mm bolt circle diameter
• Outside diameter of 327 mm and overall height of 53 mm

Detailed Product Features and Specifications

The DFC Brake Rotor - Drilled and Slotted - Silver is part of Dynamite Friction's DFC line, which focuses on delivering reliable braking components with enhanced surface treatments. This rotor’s vented design helps maintain optimal operating temperatures by allowing air to flow between the rotor faces, reducing the risk of brake fade during extended use. The drilled and slotted surface improves water and debris evacuation, contributing to consistent braking performance in various driving conditions.

With a nominal thickness of 30 mm and a discard thickness of 28.5 mm, this rotor meets precise wear limits to ensure safety and longevity. The zinc silver hat finish provides corrosion resistance, complemented by an overall rust-resistant coating to extend the rotor’s service life. The rotor’s 5-bolt pattern with 16.24 mm diameter holes and a 126.8 mm bolt circle diameter matches the factory specifications for Jeep Commander and Grand Cherokee models, ensuring proper fitment and installation.

Applications and Problem Solving

• Replacement for worn or warped rotors on Jeep Commander and Grand Cherokee
• Improves braking performance by reducing heat buildup and brake fade
• Helps eliminate brake noise and vibration caused by uneven rotor surfaces
• Maintains consistent braking in wet or debris-prone environments
• Prevents rust and corrosion-related rotor damage

Installation Notes and Tips

• Verify rotor thickness before installation; replace if below discard thickness of 28.5 mm
• Ensure proper torque on all 5 lug bolts with 16.24 mm diameter
• Clean rotor surface before installation to remove any protective coatings or debris
• Check compatibility with existing brake pads and calipers on Jeep Commander or Grand Cherokee
• Follow manufacturer’s recommended break-in procedure for new rotors

Quality Assurance and Warranty

Dynamite Friction’s DFC Brake Rotor line adheres to strict manufacturing standards to provide consistent quality and durability. The rust-resistant coating and zinc silver hat finish contribute to long-term reliability. Please consult product documentation or contact the manufacturer for specific warranty details related to part number 631-42000L.