DAT Industries Private Limited manufactures Replacement Piston/Seal Assembly. DAT Industries Private Limited manufactures Electrical Control Systems, Commercial or Industrial Control Systems, Refrigeration Systems and Their Controls, Web Page Design, Hydraulic Fan Hub Puller etc. The Replacement Piston or Seal Assembly is used for Hydraulic Fan Hub Puller and is identical to the original. The Replacement Piston or Seal Assembly comes with RAM Tip which is not included in this assembly and must be purchased separately.