ABS 420431 Brake Caliper

ABS 420431 Brake Caliper

The ABS 420431 Brake Caliper is a high‑performance component designed for the rear left braking system of various Peugeot models, including the 605 and 607 series. It serves as the critical interface between the brake pads and the rotor, ensuring precise modulation of braking force and optimal vehicle safety.

Key Functional Characteristics

• Design: The caliper features a robust aluminum alloy construction that balances strength with lightweight efficiency. This material choice reduces unsprung mass, contributing to improved handling dynamics.
• Hydraulic Operation: Equipped with a dual‑acting piston arrangement, the caliper delivers consistent pressure distribution across both brake pads. This design enhances stopping power and minimizes fade during repeated braking events.
• Compatibility: Specifically engineered for rear left applications on Peugeot 605 (1997–2011) and 607 models, the caliper aligns with rotor diameters ranging from 10 mm to 33 mm. It is also suitable for a range of brake pad sizes that match the OEM specifications.
• Thermal Management: The internal geometry incorporates cooling fins that facilitate rapid heat dissipation. This feature protects against overheating and maintains braking performance under high‑temperature conditions.

Installation Overview

Installing the ABS 420431 Brake Caliper involves a systematic approach to ensure safety and reliability:

1. Preparation: Secure the vehicle on a lift or jack stands. Remove the wheel and brake rotor from the rear left hub.
2. Removal of Old Caliper: Detach the caliper mounting bolts, carefully disconnect the hydraulic line, and slide the old caliper away. Preserve the brake fluid reservoir to prevent contamination.
3. Mounting the New Caliper: Position the new caliper onto the mounting bracket, aligning it with the rotor surface. Tighten the mounting bolts to the manufacturer’s torque specifications.
4. Hydraulic Re‑fill: Reconnect the brake line and purge the system to eliminate air pockets. Verify that fluid levels are correct and that there are no leaks.
5. Final Checks: Replace the rotor, wheel, and tire. Perform a brake test at low speed to confirm proper operation before resuming normal driving conditions.

Maintenance Tips

• Regular Inspection: Check for signs of wear such as uneven pad thickness or rotor scoring. Replace pads when they reach the minimum thickness threshold.
• Fluid Quality: Maintain brake fluid at recommended levels and replace it according to the service interval guidelines to preserve hydraulic integrity.
• Cleaning: Use a non‑abrasive brush and brake cleaner to remove debris from the caliper surface, ensuring optimal contact with the rotor.

Technical Specifications

Translations of Key Terms

• Pinza de freno / Pinza Freno / Pinza Fréno: Brake Caliper (Spanish/Italian)
• Bremssattel / Bremsekaliber: Brake Caliper (German)
• Étrier de frein / Étrier De Frein Arrière Gauche: Rear Left Brake Caliper (French)
• Zacisk hamulca: Brake Caliper (Polish)

The ABS 420431 Brake Caliper exemplifies engineering precision tailored to the demands of rear braking systems in classic Peugeot models. Its combination of lightweight construction, reliable hydraulic performance, and thoughtful thermal design makes it a dependable choice for enthusiasts seeking both safety and longevity in their vehicle’s braking apparatus.