National JWS-165L Triplex Well Servicing Reversing Mud Pump Trailer

Used National JWS-165L Triplex Well Servicing Reversing Mud Pump Trailer, 4" metal plungers x 5" stroke, Detroit 6-71 diesel engine, manual transmission, MCM 3x4x13 PTO driven charge pump, fuel tank, parts cabinet, reversing manifold and piping, 2 compartment mud tank, mounted on 1978 40' tandem axle highboy trailer, stairs, railings, lights, etc.