Dynamite Friction 830-42003L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Geoperformance Rotor

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-42003L) is engineered for Jeep Grand Cherokee models requiring reliable braking performance. This vented disc brake rotor features a directional, slotted and drilled surface designed to enhance heat dissipation and maintain consistent stopping power under demanding conditions.

• Compatible with Jeep Grand Cherokee vehicles
• Directional, slotted and drilled rotor surface for improved brake pad contact and cooling
• Vented rotor design to reduce heat buildup
• Rust resistant coating for extended durability
• Geospec silver grey hat finish for corrosion resistance and aesthetic appeal
• Overall diameter of 350 mm with 5 bolt holes (16.3 mm diameter) and 127 mm bolt circle diameter
• Nominal thickness of 28 mm and discard thickness of 27.85 mm
• Center hole diameter of 72 mm for precise fitment

Detailed Product Description

The 830-42003L rotor from Dynamite Friction’s DFC Geoperformance Rotor - Drilled and Slotted line is designed specifically for the Jeep Grand Cherokee. Its vented construction allows air to flow between the rotor surfaces, reducing heat and minimizing brake fade during extended use. The directional slotted and drilled surface improves water and debris evacuation while enhancing pad bite and braking consistency. The rotor’s nominal thickness of 28 mm ensures structural integrity, while the discard thickness of 27.85 mm indicates the minimum safe thickness for replacement. The rotor features a rust resistant coating and a Geospec silver grey finish on the hat, which helps prevent corrosion and maintains a clean appearance over time.

Applications and Problem Solving

• Reduces brake fade during heavy braking or towing
• Improves braking performance in wet or muddy conditions
• Minimizes rotor warping caused by excessive heat
• Prevents rust and corrosion for longer rotor life
• Ensures precise fitment for Jeep Grand Cherokee brake systems

Installation Notes and Tips

Ensure the rotor surface and hub are clean and free of debris before installation. Verify the rotor thickness is above the discard thickness of 27.85 mm before mounting. Use the correct torque specifications for the 5 lug bolts (16.3 mm diameter) on the 127 mm bolt circle diameter. The directional rotor surface should be installed following the indicated rotation direction for optimal performance.

Quality Assurance

Dynamite Friction manufactures the 830-42003L rotor to meet or exceed OEM specifications for the Jeep Grand Cherokee. The rust resistant coating and vented design contribute to durability and consistent braking performance. Warranty information is available through the manufacturer and should be consulted for specific coverage details.