The TG 73-200 penetrometer is equipped as standard with a diesel engine with the following characteristics:
| Type | Diesel cycle, liquid cooling, 4 inline cylinders, indirect fuel injection, single overhead camshaft, silencer |
| Starting | Electric |
| Power (Hp) – (kW) | 30.5 – 22.4 at 3000 rpm |
| Displacement (cm3) – (inch3) | 1372 – 83.7 |
| Air filter | Cartridge filter |
| Consumption (liters/hour) – (US gallon/hour) | Variable from 7.95 – 2.10 to 9.98 – 2.63 depending on the power required |
| Non-binding data, subject to change | |