Complete Seal Kit for John Deere 590D Excavator Boom Cylinder, rod bushing, piston wear rings, and additional rod wear ring unique to this series are included, please be aware these parts are not usually included in other brands of kits. Pictures are are of an actula kit, but seal colors may vary, please call if you need more information. Kits do not include instructions, read and follow equipment manufacturers’ instructions for replacing seals. Some kits may include extra parts because they are made to fit the design variations of a particular model. Because seal designs are continuously improving, and because of possible previous repairs, some kits may have a different seal design than the seal you remove, however, unless the original seal grooves were machined in a previous repair the replacement seals should fit & function properly. Never attempt to service a pressurized cylinder, or a cylinder connected to a load, never use air or hydraulic pressure to disassemble a cylinder.