Drive Systems

Aquadrive® - The smoothest, quietest, most vibration-free marine driveline on the market. The Aquadrive® anti-vibration system eliminates the need for stiff, hard mounts and for careful engine alignment to the propeller shaft. Instead, the propeller shaft is aligned to an Aquadrive® thrust bearing which absorbs all the propeller thrust and stabilizes the alignment. CV-joint shafts transmit engine power to the thrust-bearing and propeller shaft while allowing engine movements in every direction. Super-soft Aquadrive® engine-mounts isolate nearly all vibration from the hull and create the necessary conditions for a smooth and quiet boat. Models available for engines from 35 HP to 1,700 HP- Drivelines NW, Seattle, WA

Arneson Industries - Arneson Surface Drives are among the most efficient marine propulsion systems in the world. Their surface-piercing propeller design reduces underwater drag by 50% compared to conventional submerged propeller drive systems. The only surfaces to contact the water are the propeller blades and a protective skeg. This results in higher overall speed, quicker acceleration and a better payload to power ratio - San Rafael, CA

DBD Marine - We make the only stern drive unit on the market that has 6 moving parts, full stainless steel construction, can run most gas/diesel engines and uses industry standard propellers. Three models available for either recreational or commercial use - Edgewater, NJ

Evolution Company Inc. - Home of The Evolution Marine Shaft System (EMSS), a long-running, low-maintenance, oil-lubricated shaft system that significantly improves speed, propeller efficiency, and fuel economy, while reducing hull vibration and associated noise levels - Rockland, ME

Konrad - Stern drive specialists.  We produce commercial and recreational stern drives for gas and diesel applications. It is our goal to supply stern drives that are reliable, durable and keep your boat at its top performance in the water - Hudson, WI

Kort Propulsion Co. LTD - Makers of Kort Nozzles with power capacities from 35 HP to 900 HP and fixed pitch Tunnel Thrusters and Azimuthing Thrusters with power capacities from 150 to 250 HP. May be powered with hydraulic, electric or direct diesel drives - Kent, United Kingdom

LA.ME.srl Marine Division - Sea Rider™ is a motorboat drive that can be defined as a stern group with surface propeller. Sea Rider™ currently covers a 50 to 4,000 bhp power range - Milan, Italy

Mercury Marine - MerCruiser sterndrives and inboard engines.  Engine and drive combos from 260 HP to 420 HP - Fond du Lac, WI

Power-Vent Technologies - Manufacturers of the Power-Vent Surface Drive System, a patented marine surface drive system designed for high performance boats of any size. Its uniqueness is that it can put high efficiency surfacing propeller technology under the hull of a vessel with more conventional marine hardware and without transom projections - Pompano Beach, FL

Saro - The world's best surface/tunnel-prop drive systems for work boats, pleasure boats, high performance craft and race boats. These drives have a half tunnel above the surface-piercing propeller and the smaller models have integrated exhaust systems for the engine - Neupotz, Germany

Seafury Propulsion Systems Limited - The ultimate high performance surface piercing propeller drive system. The combination of reduced drag and Seafury's ultra efficient, variable pitch propeller means more boat speed from the same power. All Seafury surface drives have an integral exhaust system - Silverdale, New Zealand

Simplicity Marine Drives - Surface-piercing drives manufactured to the highest standards for increased reliability with superb materials for the harsh underwater environment. With fewer moving, higher quality components, Simplicity Marine Drives are virtually maintenance free - Palmetto, FL

Volvo Penta of the Americas - Manufacturers of complete sterndrive systems. Gas models from 100 HP to 280 HP and diesel models from 125 HP to 230 HP - Chesapeake, VA

Walter V-Drives - A precision gear drive which allows an inboard engine to be placed in the stern of a boat for greater safety, better handling, increased space, decreased maintenance, less drag, lower bow rise and shallower draft - Jersey City, NJ

ZF Marine Propulsion Systems - ZF Trimax™ and SeaRex™ surface piercing propeller drive systems. Trimax™ surface drives are simple, reliable and extremely efficient because they are fully integrated within a specially designed hull form. SeaRex™ surface drives are fully articulating, providing steering as well as trimming functions (thereby compensating for changes in load displacement) and can be installed in standard hull designs – ZF Trimax Srl, Annone Brianza, Italy