Dynamite Friction 830-42030L Disc Brake Rotor - Front Left

Overview of Dynamite Friction DFC Geoperformance Rotor

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-42030L) is engineered for Jeep Wrangler and Wrangler JK models. This vented disc brake rotor combines durability and performance with a directional, slotted, and drilled surface designed to improve braking efficiency under demanding conditions.

• Compatible with Jeep Wrangler and Wrangler JK
• Directional slotted and drilled surface for enhanced heat dissipation
• Vented rotor design to reduce brake fade
• Rust resistant coating for extended rotor life
• Geospec silver grey hat finish for corrosion protection and aesthetics
• Nominal thickness of 28 mm with discard thickness at 26.4 mm
• Five bolt holes with 16.6 mm diameter and 127 mm bolt circle diameter
• Overall outside diameter of 302 mm and height of 55 mm

DFC Geoperformance Rotor - Drilled and Slotted Product Line

The DFC Geoperformance Rotor - Drilled and Slotted line by Dynamite Friction is designed to meet the demands of off-road and street driving by providing improved braking performance and durability. The drilled and slotted surface helps evacuate gases, dust, and water, while the vented rotor design aids in heat dissipation. This combination supports consistent braking performance, especially for Jeep Wrangler and Wrangler JK vehicles that may encounter varied driving conditions.

Detailed Product Description

This disc brake rotor features a directional surface with both drilled holes and slots, which work together to maintain cooler rotor temperatures and reduce brake fade during heavy use. The vented rotor design allows air to flow between the rotor faces, further enhancing cooling efficiency. The rotor’s nominal thickness is 28 mm, with a discard thickness of 26.4 mm, ensuring a reliable service life before replacement is necessary. The rotor’s hat is finished in Geospec silver grey, providing corrosion resistance and a clean appearance. Additionally, the rotor includes a rust resistant coating to protect against environmental damage. The rotor’s dimensions include an outside diameter of 302 mm, an overall height of 55 mm, and a center hole diameter of 72.1 mm. It features five bolt holes with a diameter of 16.6 mm and a bolt circle diameter of 127 mm, matching the specifications required for Jeep Wrangler and Wrangler JK models.

Common Applications and Problem Solving

• Replacement rotor for worn or warped disc brakes on Jeep Wrangler and Wrangler JK
• Improves braking performance in wet or muddy conditions due to slotted and drilled design
• Reduces brake fade during extended off-road or heavy braking situations
• Prevents rust and corrosion with protective coatings for longer rotor life
• Maintains consistent braking feel and pedal response

Installation Notes and Tips

Ensure the rotor is compatible with your specific Jeep Wrangler or Wrangler JK model year and brake system. Clean the rotor surface before installation to remove any protective oils. Use proper torque specifications for the five lug bolts (16.6 mm diameter) to secure the rotor. Inspect brake pads for wear and replace if necessary to optimize braking performance. It is recommended to replace rotors in pairs to maintain balanced braking.

Quality Assurance

Dynamite Friction manufactures the 830-42030L rotor to meet or exceed OEM specifications for fit, form, and function. The rust resistant coating and Geospec silver grey hat finish contribute to the rotor’s durability. While no specific warranty information is provided, Dynamite Friction products are generally designed for reliable performance and longevity when installed and maintained properly.