Hydraulic ram piston fits all Sealey hydraulic puller sets and is also suitable for use with other popular makes of hydraulic gear pullers. Screw mechanism converts power to 10 Tonne ram head with enough force to remove most stubborn bearings pulleys and shafts.10 Tonne Hydraulic Ram• Hydraulic ram piston fits all Sealey hydraulic puller sets and is also suitable for use with other popular makes of hydraulic gear pullers.• Screw mechanism converts power to 10 Tonne ram head with enough force to remove most stubborn bearings pulleys and shafts.• Compatible with: Model Nos PS980 PS981 PS982 PS985.• Model No. PS990Model No: PS990:Brand: Sealey:Nett Weight: 1.36kg:Compatible With: PS980PTDSEAPS990