Hydraulic torque wrench system

A low profile power head used with a ratchet link to form a hydraulic torque wrench system, the power head comprising:

• a housing having opposed side walls, a front wall, rear wall, top wall and bottom wall, the housing having a continuous width W between opposed side walls;
• an internal cylinder formed within the housing;
• a piston that reciprocates within the internal cylinder;
• a piston rod having a first end attached to the piston and an opposite second end in the form of a working free end, the piston rod extends through the front wall of the housing;
• a first connection unit located on the front wall of the housing including a front projection having a stem and opposed arms located above the working free end of the piston rod, the stem has opposed side walls that extend from the front wall of the housing along a longitudinal axis to a rounded free end, located adjacent the rounded free end are the opposed arms, the opposed arms extend from the opposed side walls of the stem laterally from the longitudinal axis, the first connection unit is adapted to be connected to a connection slot in a ratchet link;
• a second connection unit located on the bottom wall of the housing including a bottom projection with a bore, the second connection unit is adapted to be connected to a bore in a ratchet link by a pin;
• and
• wherein the opposed arms span a distance D2 from end to end and distance D2 is less than or equal to width W of the housing, each of the opposed arms has a rounded exterior surface that slides within a connection slot in a ratchet link to abut with a closed end of a connection slot of a ratchet link.