Overview Reviews Product Description CL11013 Seal Kit for Hydraulic Cylinder on Challenger lift. Fits Holmac cylinders. Old Part # 11013. We are an authorized Challenger Distributor. Genuine Challenger Parts! Product Videos Custom Field Product Reviews Write a Review Write a Review × Challenger CL11013 Challenger Seal Kit for Hydraulic Cylinder Holmac Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *