4" bore x 18" stroke clevis hydraulic cylinder 3500 PSI. Heavy-duty hydraulics, 2-year hassle-free warranty. Magister cylinders manufactured using steel piston and steel threaded gland with wear rings for long life. Welded steel clevis ends with screw-on clevis on the rod end, honed cold-drawn tubing, hard chrome plated rod and top quality five component piston seals allow Magister Hydraulics cylinders to work in extreme conditions. Excellent replacement for farming equipment and others.