Overview Reviews Product Description Replacement Hydraulic Cylinder for Rotary Lift Rolling Jacks. Replaces Rotary OEM part # FC5642 used on 3,500lbs. rolling jack model #s FC5655, FC5655-50, and 4,500lbs. model #s FC5657, FC5657-50. Product Videos Custom Field Product Reviews Write a Review Write a Review × Rotary Replacement Hydraulic Cylinder for Rotary Lift Rolling Jacks (FC5642) Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *