2017 Link-Belt, 300X4 45,000-74,999 Lb Excavators, 2017 Link-Belt 300X4, 45,000-74,999 Lb Excavators EXCAVATOR,300X4,AUX HYD,THUMB BRACKET, EXCVTR-3000003499-XXXX, Thumb: None; Hydraulic Package: Base; ROPS Type: EROPS; Coupler Type: None or Mechanical;