BG 080-7E155Hydraulic seal kit BG 080 7E155 provides all necessary dynamic and static sealing elements for the Blue Giant EPT 55 Series manual pallet jack hydraulic pump assembly, including U cup, O ring, wiper, and backup ring seals. Engineered for hydraulic oil service and maximum system pressures up to 3000 PSI, this OEM equivalent kit prevents leakage and contamination in standard 1. 00 to 1. 50 inch bore 0. 625 to 0. 750 inch rod diameter cylinders.