Kato excavator parts

Hello all, I am in search of a lift pump for a 1991 Kato HD700SEL SN: 7006035W. The number on the lift pump is 105220-5150, on the pump itself it says Diesel Kiki license by Bosch. I tried different Bosch parts suppliers and they tried cross referencing the number but they were unsuccessful. Does anyone know of a parts supplier that has this part or is there a part that would cross reference? And on a side note does anyone have a good parts source for any and all Kato parts.

Thanks, Drew

Kato excavator parts