ABS 420271 Brake Caliper

ABS 420271 Brake Caliper

The ABS 420271 brake caliper is a high‑performance braking component designed for front‑wheel applications on a range of compact vehicles, notably the Citroën AX and Peugeot 106 series. Manufactured with precision engineering, this caliper delivers reliable stopping power while maintaining durability under demanding driving conditions.

Key Features

• Material Composition: Constructed from aluminum alloy, the caliper offers an optimal balance between strength and weight reduction, enhancing overall vehicle dynamics.
• Design: The unit incorporates a dual‑pivot mounting system that ensures even brake pad wear and consistent hydraulic pressure distribution.
• Compatibility: Specifically engineered for the Citroën AX and Peugeot 106 models, including variants with 1.0i and 1.1i engines, as well as 3/5‑door configurations.
• Hydraulic Efficiency: Features a sealed piston assembly that minimizes fluid leakage and maintains optimal brake pressure over time.
• Thermal Management: Designed with integrated cooling fins to dissipate heat during prolonged braking, reducing the risk of fade.

Installation Overview

Installing the ABS 420271 brake caliper involves a systematic approach that ensures safety and performance:

1. Preparation: Secure the vehicle on jack stands, remove the wheel, and detach the existing brake assembly.
2. Removal of Old Caliper: Carefully disconnect the hydraulic line, noting its orientation to avoid damage. Use a caliper removal tool if necessary.
3. Mounting New Caliper: Align the dual‑pivot points with the mounting holes on the wheel hub. Apply anti‑seize compound where appropriate and torque to manufacturer specifications.
4. Hydraulic Refill: Reconnect the brake line, purge air from the system, and refill with fresh brake fluid.
5. Final Checks: Verify that the caliper moves freely, pads are seated correctly, and there is no leakage. Test drive at low speed to confirm braking response.

Maintenance Tips

• Regular Inspection: Check for pad wear, piston movement, and fluid levels every 10,000 km or as recommended by the vehicle manufacturer.
• Piston Cleaning: Use a non‑abrasive brush to remove debris from the piston seals; this prevents sticking and ensures consistent hydraulic pressure.
• Fluid Replacement: Replace brake fluid at least once every two years to maintain system integrity and avoid corrosion.
• Pad Compatibility: Pair the caliper with high‑quality brake pads that match the vehicle’s braking demands for optimal performance.

Performance Benefits

The ABS 420271 brake caliper enhances driving safety by providing:

• Consistent Stopping Power: The dual‑pivot design ensures even pressure distribution across both pads.
• Reduced Weight: Aluminum construction lowers unsprung mass, improving handling and ride comfort.
• Longevity: Sealed pistons and corrosion‑resistant materials extend the lifespan of the braking system.

Technical Specifications

Conclusion

The ABS 420271 brake caliper stands out as a reliable, high‑quality component for front‑wheel braking systems in the Citroën AX and Peugeot 106 families. Its thoughtful design—combining lightweight aluminum construction, dual‑pivot mounting, and sealed piston technology—delivers consistent performance, durability, and ease of maintenance. Whether you’re restoring a classic model or upgrading an existing vehicle’s braking system, this caliper offers a proven solution that meets the demands of everyday driving while maintaining safety standards.