PY01V00040R300 BLADE CYLINDER SEAL KITS FITS CASE CX50B NEW HOLLAMD EH50B, aftermarket replacement parts; Various seal kits available for boom/arm/bucket hydraulic cylinders, main pump, control valve, track adjuster, swing motor, travel motor, center joint, regulator vavle, pilot valve and gear pump, also o-ring box, coupling, DU bushing, piston steel ring, pusher are available; Please make sure to order according to the part number and be noted the application machine model or engine model is just for reference, if you have any question please contact us for verification before ordering; The picture is just for reference, the real products may look different.