OTTO Hydraulic Tee Connector (852422) for Hitachi excavator - on the hydraulic circuit of the machine, in the position shown for this part. It carries, stores or cleans the hydraulic oil that every circuit on the machine depends on. Supplied as an OTTO replacement, checked before packing, with 3-12 months warranty options. Send us your machine serial and a photo of the old part and we will confirm fitment before dispatch.