Mitsubishi brand new construction equipment genuine parts S4K KTZ-S4K-PA1 59.7KW 1500r/min complete engine assy 312B 312C 312D E120B E120 hydraulic crawl excavator diesel engine assembly suitable for CATERPILLAR, original MITSUBISHI, PACKING: 1.1*0.6*0.9M, 450KG