Diesel Power Units Added To MENA Line - Brief Article

Mitsubishi Engine North America (MENA) has introduced a new line of diesel power units. There are nine models in the range covering outputs from 11 to 77 hp at 2500 rpm. Generator drive packages operating at 1800 rpm are available; as are variable speed packages designed to drive clutch or hydrostatic systems in a variety of off-highway equipment. Other stationary uses such as water pumps, are also seen as target applications.
According to MENA's Peter Gallegos, national sales & marketing manager, Mitsubishi's distributor network was a key market driver in launching the new power units.
"It was instrumental to support our distributor network with a standard power unit package," Gallegos said. "It gives our distributors another tool to sell their equipment manufacturer customers. It's also important on a national accounts basis to provide a "drop-in" engine system for any number of different equipment manufacturers on a just-in-time basis.
"There is also," he added, "a uniformity of warranty for the complete line, which is supported by the MENA service network."
Gallegos added that while there are nine standard power units available, each model can be further modified by distributors for specific applications. MENA is also offering the capability of offering OE specific power unit designs.
The power units are packaged in the U.S. and start with fan-to-flywheel engines that include SAE flywheel and bell housings, as well as starter, alternator, intake and exhaust manifold, safety shutdown soleniod with water temperature and oil pressure switches, oil and fuel filters.
To that base engine, MENA adds a Universal tropical duty radiator and brackets, a heavy-duty cyclonic air cleaner, muffler, a key switch start panel with fault indicator lights, an electric fuel pump and a wiring harness. A full gauge panel package will be added shortly. Options include SAE A or B flywheel and hydraulic housings in either 9-, 13-or 15-tooth configurations, along with a pump adapter and stub shafts from 1.5 to 2.25 in. for flywheel and power takeoffs. All additional components for the power units are sourced locally.
The nine four-cycle engines used in the power units include seven naturally aspirated models and two turbocharged units, all in-line and, with one exception, all incorporating IDI fuel systems.
The engines include (all ratings at 2500 rpm) Mitsubishi's two-cylinder L2E rated 8.2 hp, the 17.2 hp, three-cylinder L3E and the three-cylinder S3L and S3L2 rated 21.2 and 24.1 hp respectively. The four-cylinder S4L and S4L2 are rated 28.6 hp and 33 hp, while the S4Q2 is a four-cylinder; 35.3 hp engine.
The S4S is a four-cylinder 63 hp diesel, while the sole direct injection engine in the line is the S4S-DT, a turbocharged four-cylinder engine rated 77 hp. The two largest power units, which will join the line by mid-year, are powered by the four-cylinder S4K-T turbocharged diesel rated 79.1 hp at 2200 rpm, and the 115 hp, six-cylinder turbocharged model S6K-T. Engine displacements for the full power unit line range from 0.635 to 6.37 L.
Gallegos said all nine engines are EPA/CARB certified to Tier 2 non-road standards, with no modifications, which are in place through 2008. He added that the early indications are the IDI diesels will meet Tier 3 standards without electronics, but with exhaust aftertreatment.