pump 1) komatsu hydraulic pump 2) OME: 705-51-20400 3) material: aluminum 4) warranty time: 1 year at least Product informationOur company has many hydraulic pump, gear pump. oil pump, fuel pump and water pump for Komatsu, and caterpillar. If you have interest, please let me know, i will offer you more information as i can. Komatsu hydraulic pump 705-51-20400