Feature Perfect Fitment Custom Fitted. Suitable for NO. 328.12291-3 Ton - Sears Craftsman Floor Jack.Please confirm whether your model matches it before purchasing Superior Quality Constructed from durable and solid rubber material, Antioxidant, wear resistance. All of the components of this kit meet or exceed OEM specifications What You Get Our kit covers all of the seals, caps, washers and balls for the complete hydraulic unit. Help you complete the corresponding rebuild work .