... quality 5.Long life, low noise MITSUBISHI 6D31 used engine assy, 6D31 original complete engine assembly MITSUBISHI 6D31 ... kinds of excavator spare parts for different brands: KOMATSU, KOBELCO,CATERPILLAR, HITACHI, SUMITOMO, KATO, DAEWOO, HYUNDAI, VOLVO,MITSUBISHI.9 ... original or second- hand excavator parts. MITSUBISHI 6D31 used engine assy, 6D31 original complete engine assembly HitachiEX3600 4396991 ...