SP123557 Brake Caliper Piston 75×48 for Liugong ZL50CN Wheel Loader

Product Overview

The SP123557 is a direct-replacement brake caliper piston designed for the caliper disc brake systems on Liugong ZL50CN wheel loaders. Installed inside the brake caliper housing, it is driven by hydraulic pressure to push brake pads against the brake disc, generating reliable braking force for the machine under various loading and operating conditions. It fits both front and rear axle calipers on the ZL50CN platform.

Material & Manufacturing

Constructed from high-grade carbon steel, this piston undergoes precision turning and grinding on all mating surfaces to achieve strict dimensional tolerances. The outer diameter is surface-finished to a smooth, uniform Ra value to ensure proper sealing with caliper rubber seals and prevent fluid leakage under high brake pressure. A corrosion-resistant surface treatment is applied for protection during storage and overseas transit.

Key Performance Features

• OEM-matched dimensions for direct drop-in replacement, no modification required during installation

• High rigidity and pressure resistance to handle repeated heavy braking on construction, mining and quarry sites

• Precision polished outer wall maintains long-term seal performance and reduces wear on caliper seals

• Uniform wall thickness ensures even force distribution across the brake pad for consistent braking

• Compatible with standard hydraulic brake fluids used in heavy construction equipment

Compatibility Notes

This piston is factory specified for the ZL50CN model, and is also interchangeable with brake calipers on Liugong ZL50C and 855H loaders that share the same 75mm caliper bore size. For cross-model use, we recommend verifying your original piston dimensions and part number before ordering to guarantee correct fitment and brake performance.

Order & Delivery

We supply this piston with standard export packaging, and can arrange consolidated shipments when ordered together with other brake system components or loader spare parts. Multiple shipping options are available including sea freight, air freight and international express. For bulk orders or custom requirements, please contact our sales team for a detailed quotation and lead time.