Check the listing for details. Replacement Chief frame machine S21M Tower Ram Seal Kit - Dual Acting. Condition: New. Listed at 99.99 USD. Replacement Chief frame machine S21M Tower Ram Seal Kit - Dual Acting- compare to chief hydraulic seal kit # 601095 and works on tower ram # 601191 and 687151 Dual Acting rams Seal Kit for Chief S21M Dual Acting Front Tower Ram Part # 601191Seal Kit for Chief Titan Dual Acting Front Tower Ram Part # 687151Compare to Chief Part # 601095 These Low pressure rams work on S21M & Titan Dual action Machines only !Free ShippingNote: This seal kit works with dual acting hydraulic rams, If you are not sure of what you need please email or text pictures of you machine and ram before purchasing we will he happy to assist you in getting the correct part. This seal kit will not work with single acting cylinders. Non OEM part that replaces the original