Cummins Inc., a manufacturer of diesel engines and generator sets for the marine industry, has launched a new Onan marine U.S. Environmental Protection Agency (EPA) Tier 3-certified generator, the 55-kW MDDCM. “The expansion of our EPA Tier 3 marine product lineup to 55 kW with the MDDCM provides our customers a higher power option in a more environmentally-friendly product than previously available from Cummins Onan,” explained Brian Barnes, Marketing Leader, Onan Marine. The MDDCM joins the company's Tier 3-certified marine product line…