TRW Automotive AfterMarket DF1739 Brake Disc

TRW Automotive AfterMarket DF1739 Brake Disc

The TRW Automotive AfterMarket DF1739 Brake Disc is a high‑performance braking component engineered for the Alfa Romeo 147, 156, and 164 models, as well as their Lancia counterparts. Designed with precision machining and advanced material composition, this disc delivers reliable stopping power, durability, and consistent performance across a wide range of driving conditions.

Key Features

• Optimized Heat Dissipation: The disc features a ventilated design with multiple internal channels that efficiently channel heat away from the braking surface, reducing fade and maintaining peak performance during aggressive driving or prolonged use.
• High‑Strength Alloy Construction: Manufactured from a proprietary high‑strength steel alloy, the DF1739 offers superior resistance to wear, cracking, and deformation under extreme thermal loads.
• Precision Machining: Each disc is machined to exact tolerances, ensuring a perfect fit with the vehicle’s caliper system and maintaining optimal brake pad contact geometry.
• Corrosion Resistance: A protective coating safeguards against rust and corrosion, extending the life of the disc even in harsh climates or when exposed to road salts.
• Compatibility: The DF1739 is specifically engineered for the Alfa Romeo 147 (937), 156 (932), 164, Lancia Delta I, Thema, and Lybra models. It matches the original factory specifications for diameter, thickness, and mounting dimensions.

Technical Specifications

Installation Overview

Installing the DF1739 involves removing the existing brake disc and caliper assembly, cleaning the hub surface, and mounting the new disc with the supplied torque‑controlled bolts. The disc’s ventilation slots align precisely with the caliper pistons, ensuring even pressure distribution. After installation, a break‑in procedure is recommended: perform several moderate stops to allow the pads and disc to achieve optimal contact.

Performance Benefits

• Consistent Braking: The advanced alloy composition maintains structural integrity even under high temperatures, preventing warping that could compromise braking efficiency.
• Reduced Fade: Ventilation channels keep the disc cooler, mitigating fade during spirited driving or heavy traffic conditions.
• Longer Service Life: Corrosion‑resistant coating and robust material reduce wear, extending the interval between replacements.
• Improved Safety: Reliable stopping power enhances vehicle safety, especially in emergency braking scenarios.

Maintenance Tips

1. Regular Inspection: Check for signs of cracking, excessive wear, or uneven pad contact. Inspect the disc surface for glazing or scoring.
2. Clean Thoroughly: Use a brake cleaner to remove dust and debris from the disc’s surface before each service.
3. Avoid Over‑Torqueing: When reinstalling, follow the manufacturer’s torque specifications to prevent bolt stripping or disc distortion.
4. Replace Pads Simultaneously: For optimal performance, replace brake pads at the same time as the disc to ensure uniform wear and braking characteristics.

Why Choose TRW DF1739?

The TRW Automotive AfterMarket DF1739 Brake Disc stands out for its meticulous engineering, proven durability, and exact fitment with a range of Alfa Romeo and Lancia models. Whether you’re restoring a classic vehicle or upgrading an existing one, this disc delivers the performance and reliability that discerning drivers expect.

Conclusion

For owners of Alfa Romeo 147, 156, 164, and their Lancia equivalents, the TRW DF1739 Brake Disc offers a blend of advanced material science, precise manufacturing, and proven braking performance. Its design ensures that every stop is controlled, safe, and consistent—making it an essential component for any vehicle seeking optimal brake system integrity.