Lucas Engines DF6399áBrake Disc

Lucas Engines DF6399 Brake Disc

The Lucas Engines DF6399 Brake Disc is a high‑performance, ventilated disc brake designed to deliver reliable stopping power for a wide range of Ford vehicles, including the Fiesta, Ka, and various van models. Manufactured by Lucas Engines in partnership with TRW, this component combines advanced metallurgy with precise machining to meet stringent automotive safety standards.

Key Features

• Ventilated Design: The disc incorporates a series of strategically placed holes that promote airflow, reducing heat buildup during heavy braking and ensuring consistent performance over time.
• Durable Construction: Made from high‑strength steel alloy, the DF6399 offers excellent resistance to wear, corrosion, and thermal fatigue.
• Optimized Geometry: The 258 mm diameter with a 23 mm thickness provides a balanced combination of stopping power and weight savings. The 108 mm hole diameter enhances cooling efficiency.
• OEM Compatibility: Designed to fit original equipment specifications for Ford Fiesta VI, Ka+, and related models across multiple markets (Europe, Asia, Oceania).
• Easy Installation: Standard mounting hardware is included, allowing straightforward replacement of worn or damaged discs.

Technical Specifications

Vehicle Compatibility Matrix

The DF6399 is engineered to fit a broad spectrum of Ford models. Below is a concise compatibility guide:

Installation Guide

1. Safety First: Secure the vehicle on a jack stand and remove the wheel.
2. Remove Old Disc: Detach the brake caliper, then unscrew the disc mounting bolts. Carefully lift the old disc away from the hub.
3. Prepare New Disc: Inspect the new DF6399 for any manufacturing defects. Clean the hub surface with a solvent to remove grease and debris.
4. Mount the Disc: Place the new disc onto the hub, aligning it with the mounting holes. Tighten the bolts in a cross‑pattern sequence to the manufacturer’s torque specification (typically 120 Nm).
5. Reinstall Caliper: Reattach the caliper bracket and secure the caliper pistons. Ensure that brake fluid lines are not kinked.
6. Wheel Installation: Put the wheel back on, torque the lug nuts to spec (usually 120 Nm), and lower the vehicle.
7. Brake Bleeding: Bleed the brakes to remove any air from the system. Verify that the brake pedal feels firm and responsive.

Performance Benefits

• Consistent Stopping Power: The ventilated design maintains optimal disc temperature, preventing fade during repeated braking.
• Reduced Wear on Pads: Even heat distribution extends the life of brake pads by minimizing localized overheating.
• Lightweight Construction: Lower unsprung mass improves handling dynamics and fuel efficiency.
• Long‑Term Reliability: High‑strength alloy resists cracking and deformation, ensuring safety over many miles.

Maintenance Tips

1. Inspect discs every 10,000 km for signs of glazing or uneven wear.
2. Replace brake pads when pad thickness falls below 4 mm to avoid metal‑to‑metal contact.
3. Avoid driving on wet roads with worn discs; water can reduce braking efficiency.
4. Keep the disc surface clean from road salts and debris to prevent corrosion.

Why Choose Lucas Engines DF6399?

The combination of advanced metallurgy, precise machining, and OEM compatibility makes the DF6399 an ideal choice for drivers seeking dependable braking performance. Whether you’re restoring a classic Fiesta or maintaining a modern Ka+, this disc delivers the safety and reliability you expect from a trusted automotive brand.

Conclusion

The Lucas Engines DF6399 Brake Disc stands out as a premium, ventilated brake component engineered for Ford vehicles that demand consistent stopping power and durability. Its thoughtful design, robust material composition, and ease of installation make it a top choice for both professional mechanics and DIY enthusiasts alike.