Caterpillar 521-8391 Cylinder - 5218391
CylinderOEM and original-spec Cylinder for industrial machinery: Caterpillar 521-8391 / 5218391. Maintenance parts. International shipping. Covered by 1-year warranty.
Caterpillar 521-8391 / 5218391 Cylinder delivers OEM and aftermarket correct hydraulic actuation in Caterpillar equipment for earthmoving machinery. OEM-matched cylinder bore and seal geometry ensure reliable force output and long service life under sustained hydraulic demands. Available with a 1-year warranty. Suitable for scheduled maintenance and urgent breakdown repairs.
Caterpillar