TRW Automotive AfterMarket DF4122 Brake Disc

TRW Automotive AfterMarket DF4122 Brake Disc

The TRW DF4122 is a high‑performance brake disc designed for the rear axle of various Hyundai models, including the Coupé, Elantra I & II, Lantra I & II, and Avante II. It offers superior stopping power, durability, and consistent performance under demanding driving conditions.

Key Technical Specifications

• Diameter: 258 mm (10.2 in)
• Thickness: 10 mm
• Material Composition: High‑strength cast iron with a reinforced core for heat dissipation.
• Weight: Approximately 1.5 kg per disc, ensuring minimal unsprung mass impact.
• Surface Finish: Smooth, matte finish to reduce noise and vibration during braking.
• Compatibility: Designed for rear brake systems of Hyundai models listed above; fits standard caliper mounting patterns.

Performance Highlights

The DF4122 delivers consistent braking performance through its advanced heat‑management design. The reinforced core distributes thermal load evenly, preventing warping and maintaining optimal friction levels even during prolonged use. Its lightweight construction reduces rotational inertia, enhancing overall vehicle handling dynamics.

Installation & Maintenance

Installing the DF4122 is straightforward for technicians familiar with standard rear brake assemblies. The disc features a standard mounting flange compatible with existing caliper brackets. For optimal performance:

1. Remove the old disc and inspect the hub surface for damage.
2. Clean the hub area thoroughly to ensure proper contact.
3. Align the new disc onto the hub, securing it with the supplied mounting bolts.
4. Reinstall the caliper and adjust pad clearance as per manufacturer guidelines.

Routine maintenance includes checking for surface wear, ensuring pads are within recommended thickness limits, and inspecting brake fluid levels. The DF4122’s robust construction allows for extended service intervals compared to standard discs.

Durability & Reliability

The use of high‑grade cast iron ensures the disc can withstand repeated thermal cycling without significant degradation. Its design mitigates common issues such as brake fade and noise, providing drivers with a quiet, reliable braking experience even under heavy load or aggressive driving.

Compatibility Across Models

The DF4122 is engineered to fit a broad range of Hyundai rear brake systems. Whether you own a Coupé, Elantra III 5‑door, Lantra III Saloon, or an older Lantra II Estate, the disc’s dimensions and mounting specifications align with factory standards, ensuring seamless integration.

Why Choose TRW DF4122?

• Proven Brand Reputation: TRW is a globally recognized leader in automotive braking solutions.
• Consistent Quality Control: Each disc undergoes rigorous testing to meet or exceed OEM specifications.
• Enhanced Safety: Reliable stopping power contributes directly to vehicle safety and driver confidence.
• Long‑Term Value: Durable construction reduces the need for frequent replacements, offering cost savings over time.

Conclusion

The TRW DF4122 Brake Disc stands out as a premium choice for rear braking systems in selected Hyundai models. Its combination of advanced material engineering, precise dimensional design, and proven performance makes it an ideal upgrade or replacement component for drivers seeking reliable, high‑quality braking solutions.