Vm Motori S/a 50D/2

The register lists here five versions (50D/1 to 50D/6) with 34 to 50 kW rated output at 2,500 to 2,600 rpm, as a three-cylinder inline engine with 94 mm bore and 107 mm stroke, equal to a displacement of around 2.2 litres. The turbocharger runs a fixed wastegate geometry, injection is direct, and the specified fuel is low-sulphur diesel at 7 to 15 ppm sulphur. The engines are certified to Tier 4 (Final or Phase-in), in the 37 to under 56 kW power category; maximum torque ranges from 160 to 250 Nm at 1,800 rpm. The certification covers both US market segments, the 49-state and the California approval.

Engines of this size drive small construction machines such as mini excavators and compact loaders, generator sets, compressors and small farm implements; in this power segment VM Motori competes with Kubota, Yanmar and Perkins for supply contracts with manufacturers that have no small-diesel production of their own.

On a used purchase, operating hours and service history count, the condition of the turbocharger and its wastegate mechanism, the tightness of the charge-air ducting, the condition of injectors and injection lines, and, given the low-sulphur fuel, the condition of the fuel filter and water separator; blue or black smoke on cold start points to worn piston rings or injectors. Spares run through VM Motori's Italian distribution and its importers.