TRW Automotive AfterMarket PHB371 Brake Hose

TRW Automotive AfterMarket PHB371 Brake Hose

The TRW Automotive AfterMarket PHB371 Brake Hose is a high‑performance component designed to replace or upgrade the front brake lines on a wide range of vehicles, including Citroën, Fiat, Lancia, and Peugeot. This hose delivers reliable hydraulic pressure transmission, ensuring that the braking system operates with maximum safety and responsiveness.

Key Features

• Durable Construction: Made from reinforced rubber and a steel braided sleeve, the PHB371 resists abrasion, heat, and chemical degradation.
• Internal Thread: The hose includes a M10x1 internal thread, allowing it to mate directly with standard brake line fittings without the need for additional adapters.
• High Pressure Rating: Rated to handle pressures up to 300 bar, the hose maintains integrity under extreme braking conditions.
• Flexible Design: The braided sleeve provides flexibility while maintaining a rigid outer profile, preventing kinks and ensuring consistent fluid flow.
• Compatibility: Fits front brake lines on models such as the Citroën Evasion, Jumpy, Fiat Scudo, Lancia Zeta, and Peugeot Expert.
• OEM Quality: Manufactured to the same specifications as original equipment, guaranteeing seamless integration with existing brake systems.

Installation Overview

Installing the PHB371 involves a straightforward process that can be completed with basic hand tools. The following steps outline the typical procedure:

1. Safety First: Raise the vehicle and secure it on jack stands. Remove the wheel to access the brake line.
2. Drain Brake Fluid: Open the master cylinder reservoir and allow fluid to drain into a suitable container.
3. Disconnect Old Hose: Use an adjustable wrench to loosen the fittings on both ends of the existing brake line. Carefully detach the hose, noting any orientation marks.
4. Prepare New Hose: Inspect the PHB371 for any visible defects. If necessary, trim the ends to match the length of the old hose.
5. Attach Fittings: Screw the internal threaded ends of the new hose onto the brake line fittings, ensuring a snug fit. Tighten with a torque wrench to the manufacturer’s specification.
6. Re‑pressurize System: Refill the master cylinder with fresh brake fluid, then bleed the brakes to remove air pockets.
7. Test: Verify that the brake pedal feels firm and that there are no leaks before returning the wheel to the vehicle.

Performance Benefits

The PHB371’s reinforced construction and precise threading provide several advantages over generic aftermarket hoses:

• Consistent Hydraulic Flow: The smooth interior surface reduces turbulence, ensuring that brake fluid reaches the calipers with minimal delay.
• Longer Service Life: The braided steel sleeve resists wear, extending the hose’s lifespan even under high‑temperature operation.
• Reduced Maintenance: With a reliable seal and robust material, the hose requires fewer inspections and replacements.
• Improved Safety: By maintaining structural integrity under pressure, the PHB371 reduces the risk of brake failure.

Compatibility Matrix

Maintenance Tips

Even with its robust design, regular inspection of the PHB371 is essential:

• Check for visible cracks or bulges every 12,000 miles (or as recommended by the vehicle manufacturer).
• Inspect fittings for tightness and replace any worn seals.
• Avoid exposing the hose to extreme temperatures or corrosive chemicals.

Why Choose TRW?

TRW Automotive is a globally recognized leader in brake system components. Their commitment to quality engineering ensures that each PHB371 hose meets stringent safety standards and delivers reliable performance across diverse driving conditions.

Conclusion

The TRW Automotive AfterMarket PHB371 Brake Hose is an essential upgrade for anyone seeking to maintain or enhance the braking performance of their Citroën, Fiat, Lancia, or Peugeot vehicle. Its combination of durable materials, precise threading, and OEM compatibility makes it a dependable choice for both professional mechanics and knowledgeable DIY enthusiasts.