2007 Caterpillar 320DL Hydraulic Excavator. SN. CAT0320DJPHX00698. Cab/Air. Aux Hyd. Hyd Thumb. 46 Inch Digging Bucket. 31.5 Inch Tracks. Cat Diesel Engine. Hour meter reads: 7,088 Hours. Per Seller: Hyd Thumb not working.