Topaz:  There is nothing like the passage of time that tells the tale of a quality built boat.  This Cummins powered Topaz Express Sportfisher is still catching the fish.  Solidly built and reliable, this boat will continue to serve fisherman and cruisers for years to come.  Excellent lines and roomy cockpit and cabin provide all the luxuries one needs for a successful day on the water.  Courageous will catch everyone's eye as it cruises past.

Garmin Electronics and operable tower with Garmin GPS.

The Cummins B Series is a family of American straight-four and straight-6 diesel truck and industrial piston engines that are manufactured by Cummins. The B Series is known for the popular 3.9 liters (238.0 cu in) straight-four and 5.9 liters (360.0 cu in) straight-six motors. The B Series is widely used in many segments, including pickup trucks, buses, military vehicles, construction equipment, and marine vehicles. Some of the construction and marine applications use a dual installation, of two B Series Cummins engines.

The Cummins 6BT 5.9 is a rock solid and simple engine, and can be setup with either Keel Cooling or Heat Exchanged cooling. Other options are dry exhaust, wet exhaust, and a variety of PTO options to drive off-engine accessories such as additional alternators, wash-down pumps, or hydraulic pumps.  When the engine is coupled to a extra heavy duty transmission with the largest prop that can be fitted easily to the boat, you’ll have a vessel that will travel at hull type speeds very economically.  Since about 1995, many Detroit’s from the 4-53 all the way to 8-71’s, Perkins, and Ford Lehman's have been replaced with the 6BT with high rates of customer satisfaction.

One of the best options for powering fishing vessels, commercial fishing vessels, smaller tug & push boats, many types of trawler or semi-displacement, or displacement vessels under about  40 tons is using the Cummins 6BT.