Dynamite Friction 830-40121L Disc Brake Rotor - Rear Left

High-Performance Brake Rotor for Ram 1500

The Dynamite Friction DFC Geoperformance Rotor - Drilled and Slotted (part number 830-40121L) is engineered to provide reliable braking performance for Ram 1500 trucks. Designed with precision, this disc brake rotor combines durability and enhanced heat dissipation to support demanding driving conditions.

• Compatible with Ram 1500 models
• Directional drilled and slotted surface for improved brake pad bite and heat management
• Nominal thickness of 22 mm with a discard thickness of 20.4 mm
• Rust-resistant coating for extended rotor life
• Geospec silver grey hat finish for corrosion resistance and aesthetic appeal
• Six bolt holes with a 17 mm diameter and 139.7 mm bolt circle diameter
• Outside diameter of 375 mm and height of 53.44 mm
• Center hole diameter of 78.42 mm

About the DFC Geoperformance Rotor - Drilled and Slotted Line

The DFC Geoperformance Rotor - Drilled and Slotted line by Dynamite Friction focuses on rotors designed to optimize braking efficiency through directional drilled and slotted surfaces. This design helps reduce brake fade by improving heat dissipation and removing debris from the brake pad surface. The rotors also feature a rust-resistant coating and a Geospec silver grey hat finish, enhancing durability and corrosion resistance for extended service life.

Detailed Product Description

This Dynamite Friction disc brake rotor (part number 830-40121L) is specifically manufactured for Ram 1500 trucks, ensuring precise fitment and reliable performance. The rotor’s directional drilled and slotted surface improves braking response by allowing gases and dust to escape, reducing pad glazing and maintaining consistent friction. With a nominal thickness of 22 mm and a discard thickness of 20.4 mm, this rotor maintains structural integrity under heavy braking. The rust-resistant coating and Geospec silver grey hat finish protect against corrosion, which is critical for vehicles exposed to harsh environments.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Ram 1500
• Improves braking performance under heavy load or towing conditions
• Reduces brake fade during extended downhill driving
• Addresses rotor corrosion and surface rust issues
• Enhances brake pad life by maintaining cleaner contact surfaces

Installation Notes and Tips

Ensure the rotor surface is clean and free of oil or debris before installation. Verify the rotor thickness is within specifications before mounting. Use proper torque settings on the six lug bolts to avoid rotor warping. It is recommended to replace brake pads when installing new rotors to ensure optimal braking performance.

Quality Assurance and Warranty

Dynamite Friction manufactures the 830-40121L rotor to meet strict quality standards for fitment and performance on Ram 1500 trucks. The rust-resistant coating and durable finishes contribute to long service life. Please refer to Dynamite Friction’s warranty policy for specific coverage details.