ABS 721322 Brake Caliper

ABS 721322 Brake Caliper

The ABS 721322 Brake Caliper is a high‑performance braking component engineered for the rear axle of Nissan vehicles, particularly models such as the Primera series (including Hatchback, Estate, Traveller, and Estate variants). Designed to replace original equipment (OE) parts, this caliper delivers reliable stopping power while maintaining durability under demanding driving conditions.

Design & Construction

The caliper features a robust aluminum alloy housing that balances strength with lightweight construction. This material choice reduces unsprung mass, improving ride quality and handling dynamics. The internal pistons are precision‑machined to ensure uniform hydraulic pressure distribution across the brake pads.

Key Structural Elements

• Aluminum Alloy Body: Offers high thermal conductivity for efficient heat dissipation during braking.
• Piston Assembly: Dual pistons provide symmetrical pad contact, enhancing braking efficiency.
• Brake Pad Retention Mechanism: Securely holds pads in place while allowing smooth movement during operation.
• Hydraulic Port Configuration: Designed to match standard ABS hydraulic lines for seamless integration.

Performance Characteristics

The ABS 721322 Brake Caliper is engineered to meet or exceed OEM performance standards. Its design ensures consistent braking force, reduced fade under repeated use, and reliable operation in both dry and wet conditions.

• High Thermal Capacity: The aluminum body dissipates heat quickly, preventing brake fade during aggressive driving.
• Consistent Pad Wear: Even pressure distribution leads to uniform pad wear, extending pad life.
• ABS Compatibility: Integrated with Nissan’s ABS system for electronic braking modulation and stability control.

Compatibility & Fitment

This caliper is specifically designed for the rear right side of Nissan vehicles. It fits a range of engine configurations, including:

• 1.8L/2.0L/2.2L DI engines
• 1.6L/1.9L engines

It is suitable for the following models:

• Nissan Primera (2002‑2008)
• Nissan Primera Estate
• Nissan Primera Traveller
• Nissan Primera Hatchback

Installation Overview

Replacing the caliper involves removing the existing unit, disconnecting hydraulic lines, and securing the new caliper with manufacturer‑specified torque settings. Proper bleeding of the brake system is essential to eliminate air pockets and ensure optimal performance.

Maintenance & Care Guidelines

• Regular Inspection: Check for signs of corrosion or wear on the caliper body and pistons.
• Brake Fluid Replacement: Follow Nissan’s recommended schedule to maintain hydraulic integrity.
• Piston Seals: Inspect seals for leaks; replace if necessary to prevent fluid loss.
• Pad Compatibility: Use OEM or high‑quality aftermarket pads that match the caliper’s specifications.

Technical Specifications

Conclusion

The ABS 721322 Brake Caliper exemplifies engineering precision tailored for Nissan’s rear braking system. Its lightweight aluminum construction, dual piston design, and ABS compatibility make it a reliable choice for drivers seeking OEM‑level performance and longevity. By adhering to the outlined maintenance practices and ensuring correct installation, users can enjoy consistent stopping power and enhanced vehicle safety throughout the caliper’s service life.