The Spring (OEM Part No. 5541378100) is a mechanical spare part compatible with Epiroc ST1030 and ST7 underground loader models. Manufactured from high-quality spring steel, it functions as an elastic buffer and return component in mechanical assemblies. The spring helps absorb vibration, maintain proper tension, and support smooth component movement during equipment operation. Designed for demanding mining conditions, it provides excellent elasticity, durability, and fatigue resistance. With accurate OEM dimensions, this replacement spring ensures reliable installation, stable performance, and long service life for underground mining equipment maintenance and repair.