Caterpillar E series excavator hydraulic cylinders are designed for boom, arm, and bucket functions across a wide range of Cat excavator models. Manufactured to OEM dimensional standards, these hydraulic cylinders provide accurate fitment, stable motion control, and dependable performance in demanding construction and mining environments.
Yoonad Hydraulics supplies replacement hydraulic cylinders compatible with Caterpillar E series excavators, including models such as 312E, 313E, 320E, 323E, 326E, and 336E. Each cylinder is produced using precision-honed steel tubes, induction-hardened and hard-chrome-plated piston rods, and high-quality sealing systems to support pressure stability, reduced internal leakage, and extended service life under continuous operation.
All Caterpillar E series excavator hydraulic cylinders are CNC-machined and pressure-tested before shipment. Custom bore sizes, stroke lengths, mounting configurations, and seal options are available to support cylinder repair, rebuilding, and aftermarket replacement requirements.
