SERIAL NUMBER TAKEUCHI MINI EXCAVATOR Serial Number Location for Takeuchi Mini-Excavator Models: TB015, TB016, TB025, TB30UR, TB045, TB108, TB125, TB135, TB138FR, TB145, TB153FR, TB175, TB180R, TB108, TB016, TB228, TB235, TB250, TB260, TB285, TB1140 Serial Number Examples: 7 digits: 1151234 9 digits: 216100054 VIN Number Location: On the right or left side of the front face of the machine below operatorâs compartment. Similar to Bobcat. 2014 models at the bottom of the knuckle boom on top of the yoke.