Dynamite Friction 631-42029L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-42029L) is engineered for reliable braking performance on Jeep Wrangler and Wrangler JK models. Designed with a directional, slotted and drilled surface, this rotor enhances heat dissipation and braking consistency under demanding conditions.

• Disc type: Solid disc brake rotor
• Surface finish: Slotted and drilled for improved cooling
• Hat finish: Zinc silver coating for corrosion resistance
• Rust resistant coating applied
• Nominal thickness: 12 mm with discard thickness at 10.4 mm
• Outside diameter: 316 mm
• Overall height: 76.5 mm
• Bolt hole quantity: 5 with 16.6 mm diameter
• Bolt circle diameter: 127 mm
• Center hole diameter: 72.1 mm
• Directional brake surface for optimized pad contact

Detailed Product Description

This Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver is a solid rotor designed specifically for Jeep Wrangler and Wrangler JK vehicles. The rotor features a plain disc finish with a zinc silver hat finish that provides enhanced rust resistance, extending the rotor's service life. The drilled and slotted surface improves heat dissipation and helps evacuate brake dust and gases, which can improve braking performance and reduce fade during heavy use. The rotor’s nominal thickness is 12 mm, with a discard thickness of 10.4 mm, ensuring clear service limits for safe operation. The 5-bolt hole pattern with a 127 mm bolt circle diameter matches the factory specifications for these Jeep models, ensuring proper fitment and installation.

DFC Brake Rotor - Drilled and Slotted - Silver Product Line

The DFC Brake Rotor - Drilled and Slotted - Silver line by Dynamite Friction focuses on rotors that combine drilled holes and slots to enhance braking efficiency and rotor cooling. This product line is designed to meet the demands of drivers who require consistent braking performance, especially in off-road or heavy-duty conditions typical for Jeep Wrangler and Wrangler JK vehicles. The silver zinc coating on the rotor hat adds a layer of corrosion protection, which is important for vehicles exposed to harsh environments.

Applications and Problem Solving

• Compatible with Jeep Wrangler and Wrangler JK models requiring 316 mm diameter rotors
• Helps reduce brake fade during extended braking or off-road use
• Improves heat dissipation to prevent rotor warping
• Minimizes brake dust buildup for cleaner braking surfaces
• Provides corrosion resistance to extend rotor lifespan

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (10.4 mm) before installation
• Verify bolt hole pattern and bolt circle diameter (5 bolts, 127 mm) for compatibility
• Clean rotor surface before installation to remove any protective coatings or debris
• Use proper torque specifications for lug nuts to avoid rotor damage
• Inspect brake pads for wear and replace if necessary to ensure optimal rotor performance

Quality Assurance

Dynamite Friction manufactures the 631-42029L rotor to meet OEM specifications for Jeep Wrangler and Wrangler JK vehicles. The rotor includes a rust resistant zinc silver coating and is engineered for durability and consistent braking performance. Warranty information is available through Dynamite Friction and should be confirmed at the point of purchase.