Used Doosan DH420-7 Excavator | No. 24530-15 We test and maintain each excavator. Through more than 5 hours of manual and data testing, the excavator's working capacity and the performance output of the engine and hydraulic pump under pressure test and the performance test of hydraulic flow meet the use requirements. This excavator is not a new model. We highly recommend this excavator to users with budget requirements. This excavator will have a short period of black smoke when starting, which does not affect normal use. We can provide various excavator accessories and auxiliary tools according to your needs to meet your different work requirements.