100 percent computerized hydraulic testing is performed for proper flow, leakage and performance to ensure perfect fit and function. All critical components like campaqs, spool valves, etc., are triple tested to ensure product reliability. All units are built with 100 percent new seals and O-rings. Units are supplied with 100 percent tested and calibrated pressure relief valves. Shafts are 100 percent processed to ensure surface finish is within OE tolerances.