Less than a year after formalizing their relationship, Cummins and Konrad Marine added 480- and 550-hp ratings to the diesel sterndrive packages they jointly offer.
The 480 rating is approved for leisure and commercial applications. The package offers 37 percent more horsepower and 129 percent more torque than gasoline outboards, the companies said. It offers 46 percent more horsepower and 54 percent more torque than other diesel sterndrive products sold into the commercial space.
The 550 rating is currently intended for leisure applications, and at 875 foot-pounds it offers 162 percent more torque than outboards and 46 percent more than diesel sterndrives offered in the leisure space, the companies said.
The companies have a display at the Pacific Marine Expo, which opened Wednesday and concludes today at the CenturyLink Field Event Center in Seattle.
"These power ratings, coupled with the inherent advantages of diesel, start a very compelling conversation," Konrad Marine global business development manager Julie Heifner said in a statement. "Add to this the exceptionally long life of this package; the fact that Konrad sterndrives can be rebuilt up to seven times to full integrity, versus being replaced; and now you have a solution with an extremely low cost of ownership, compared to outboards or traditional inboards. This creates a very viable diesel alternative for larger vessels, and as customers will discover, a lucrative one with a long list of advantages."
A wide variety of packages are available, utilizing one of six sterndrive models and nine variations of the QSB 6.7L engine, so the installations can be optimized. For example, if efficiently managing heavy loads is the goal, four dual-prop models are available with carrying capacities of as much as 18,500 pounds (8.4 metric tons) per drive.
"These packages offer significant advantages for our customers in power, longevity and cost of ownership," said Geoff Conrad, director of marine business for Cummins NW USA. "Our team is looking forward to many successful projects in the Northwest."