OTTO Hydraulic Main Pump Seal Kit (YB00002431) for Hitachi ZAX330 / ZX330 (HPV145) excavator - fitted into the housing, gland or hub of the component it seals. It keeps oil inside the joint and dirt outside, so pressure is held and the mating surfaces do not wear. 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.

OTTO Main Hydraulic Pump Seal Kit (4333170) for Hitachi ZX200 / ZX230 / ZX240-3 / ZX270-3 excavator - fitted into the housing, gland or hub of the component it seals. It keeps oil inside the joint and dirt outside, so pressure is held and the mating surfaces do not wear. 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.