TRW Automotive AfterMarket DF4814 Brake Disc

TRW Automotive AfterMarket DF4814 Brake Disc

The TRW DF4814 brake disc is a high‑performance, ventilated rotor engineered to deliver reliable stopping power in demanding automotive applications. Designed for the rear axle of various Nissan Patrol models—including the 2.8 Y60, 4.2 Y60, and their GQ SUV derivatives—this rotor measures 316 mm in diameter with an 18 mm central bore, providing a robust platform for both standard and heavy‑duty braking systems.

Key Technical Specifications

• Diameter: 316 mm (12.4 in)
• Bore: 18 mm (0.71 in)
• Thickness: 139.7 mm (5.5 in) at the outer edge
• Ventilation: Dual‑channel, cross‑flow design for optimal heat dissipation
• Material Composition: High‑grade cast iron alloy with a black anodized finish to resist corrosion and enhance aesthetic appeal
• Weight: Approximately 4.2 kg (9.3 lb) per disc, balancing durability with weight savings
• Compatibility: Fits Nissan Patrol GR 5 SUV, Patrol GR 4 SUV, and Patrol Hardtop models; also suitable for other vehicles requiring a 316 mm rear rotor

Design Features That Set the DF4814 Apart

The ventilated architecture of the DF4814 incorporates strategically placed perforations that allow air to flow through the disc, reducing heat buildup during prolonged braking. This feature is essential for maintaining consistent brake performance in off‑road or high‑speed scenarios where thermal management becomes critical.

A precision-machined mounting surface ensures a secure fit onto the hub assembly, minimizing vibration and ensuring even contact with the brake caliper pads. The rotor’s smooth finish reduces noise and wear on the pad material, extending the life of both components.

Material Excellence for Longevity

The DF4814 is fabricated from a proprietary cast iron blend that offers superior thermal conductivity while maintaining structural integrity under high stress. The alloy’s composition includes silicon and manganese additives, which enhance the rotor’s resistance to cracking and warping.

To further protect against environmental factors, the disc is coated with a durable black anodized layer. This finish not only provides an attractive matte appearance but also serves as a barrier against rust, salt, and other corrosive elements commonly encountered in road and off‑road conditions.

Installation Guidance for Optimal Performance

1. Remove the existing rotor: Carefully detach the brake caliper, then unscrew the old disc using a torque wrench set to the manufacturer’s specifications.
2. Inspect the hub surface: Ensure it is clean and free of debris; use a brake cleaner if necessary.
3. Position the new DF4814 rotor: Align the mounting holes with the hub, then secure using the supplied bolts. Tighten to the recommended torque value.
4. Reinstall the caliper: Place the caliper back over the rotor and reattach the retaining pins or bolts.
5. Bleed the brake system: Remove any trapped air to guarantee consistent braking force.

Following these steps guarantees that the DF4814 will perform at its best, providing reliable stopping power across a range of driving conditions.

Performance Highlights

• Consistent Braking: The rotor’s heat‑management design maintains optimal temperature levels, preventing fade during extended use.
• Reduced Wear: Smooth surface finish and precise machining reduce pad wear, extending the life of brake pads.
• Noise Reduction: Ventilation channels minimize vibration, resulting in quieter operation compared to solid rotors.
• Weight Efficiency: Despite its robust construction, the DF4814 remains lightweight, contributing to overall vehicle efficiency.

Maintenance Tips for Longevity

To keep your TRW DF4814 rotor in peak condition, perform regular inspections and maintenance:

• Check for cracks or warping: Inspect the disc surface periodically; any visible damage should prompt replacement.
• Clean regularly: Use a brake cleaner to remove dust and debris that can accumulate on the rotor’s surface.
• Monitor pad wear: Replace brake pads before they become too thin, as this can affect heat transfer and braking performance.
• Avoid excessive heat buildup: In extreme driving conditions, consider using high‑performance brake pads that complement the rotor’s thermal capabilities.

Why Choose the TRW DF4814?

The combination of advanced ventilation technology, high‑grade material composition, and precision engineering makes the DF4814 an ideal choice for drivers who demand reliable, long‑lasting braking performance. Whether you’re tackling rugged terrain or cruising on highways, this rotor delivers consistent stopping power while resisting wear and corrosion.

Compatibility Overview

The TRW DF4814 is specifically engineered to fit the rear axle of a wide range of Nissan Patrol models:

• Nissan Patrol GR 5 SUV (Y60)
• Nissan Patrol GR 4 SUV (Y60)
• Nissan Patrol Hardtop (Y60)
• Other vehicles requiring a 316 mm rear rotor with an 18 mm bore

Its universal design ensures that it can be swapped into compatible platforms without the need for additional modifications.

Conclusion

The TRW Automotive AfterMarket DF4814 brake disc stands out as a premium component that blends durability, performance, and aesthetic appeal. Its ventilated structure, high‑quality cast iron alloy, and meticulous manufacturing process provide drivers with confidence in every stop—whether on the road or off the beaten path.

By selecting the DF4814, you invest in a rotor that delivers reliable braking, extended component life, and peace of mind for all your driving adventures.