Thrusters & Propulsion

Power when you need it - and backup propulsion for when you really need it.

Bow & Stern Thrusters

Thrusters for commercial vessels and luxury yachts from 30 feet to 500 feet


We can help you configure & price your Thruster System   Configure My Vessel Download our Thruster System product sheet   Download PDF

Built rugged for the toughest jobs in the most demanding environments

Mechanical Thrusters

Built rugged for the toughest jobs in the most demanding environments

WESMAR's line of commercial grade counter-rotating dual propeller thrusters sets the standard in the marine industry. The use of counter-rotating dual propellers, a WESMAR innovation, splits the power between matched gear sets thus yielding very high efficiency. The aft propeller recovers the swirl energy left behind by the forward propeller creating more thrust.

All bow thruster components exposed to seawater are made of stainless steel including the 4-blade Kaplan props, drive leg, shaft, bearings and seal carriers. The highest quality seals are fitted to the input and output shafts to prevent water ingress and oil leakage. All seals can be replaced without dismantling the complete thruster unit. This best in class reliability translates to enhanced safety for the vessel operator and crew.

WESMAR thrusters are available with a choice of DC 12V, 24V, 48V, AC Variable speed, or hydraulic power. These drive options are available with ON/OFF or proportional control.

WESMAR Thruster Standard Features:

  • Commercial grade bow/stern thrusters, 5 to 500 horsepower
  • Efficient 7-inch to 48-inch counter rotating dual 4-blade Kaplan props
  • Investment cast stainless steel construction for maximum durability, reliability, and safety
  • Thruster internals built with AGM matched spiral bevel gears
  • Options: Pre-mounted in steel, aluminum or fiberglass tubes (saddle mount or weld-in)
  • Counter rotating dual propellers provide the most thrust per input horsepower
  • With more thrust, smaller tunnel diameters are possible minimizing hull space required as well as reducing drag and saving fuel
  • Can be interfaced into a Dynamic Positioning System
  • ABS/PDA (Product Design Assessment) design approval or other industry certifications are available if required
  • Low maintenance
  • Overbuilt for reliable operation
  • Multiple control stations can be provided with on-off or proportional controls.
  • Easy Retrofit: Upgrading your thruster is simple and easy! WESMAR's two bolt design allows for a simple drop-in retrofit on existing metric sized tunnels. Both the V2-7M and V2-10M models are drop-in replacements for Max Power, Side Power, and Vetus thrusters.
  • Best in class quality of design and construction make WESMAR thrusters a long-lasting investment.
  • In-Hull mounted motor design facilitates easy access and maintenance, upgrades, and isolates the power source and hydraulic oil from seawater
The WESMAR Difference
WESMAR Thrusters are manufactured to the highest standards and have been designed for maximum durability and reliability. Technical support is available around the world from a team of professional service personnel. WESMAR can build or ship most parts to any destination in the world within 24 hours.
Bow & Stern Thrusters *
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Typical Boat Size Nominal Prop Size Typical Horsepower Range Power Source Drive Control
Hydraulic DC AC On/Off Control Proportional/ Soft Control
Boat Length 25ft - 48ft
25' - 48'
185mm 5-15HP
205mm 5-15 HP
250mm 5-15HP
Boat Length 45ft - 80ft
45' - 80'
10 Inch 10-25 HP
12 Inch 13-40HP
Boat Length 60ft - 140ft
60' - 140'
16 Inch 40-60 HP
18Inch 75-100 HP
Boat Length 90ft - 165ft
90' - 165'
20 Inch 75-150 HP
24 Inch 75-150 HP
26 Inch 150-225 HP
Boat Length Over 150ft
over 150'
34 Inch 200-350 HP
48 Inch 400-500 HP
* Other configurations available   Configure My Vessel

"I normally use the thruster for docking and maneuvering in tight places but we do have it available and standing by when we are working nets, should the need arise."— David L. Bohn,
Captain of R/V Spencer F. Baird
"We purchased the WESMAR thruster for a new dredge we were designing and we were so happy with it we’ve made it standard on all our dredges."— Jordan Webb,
Design Engineer for SRS Crisafulli

Bow & Stern Thrusters Stories
May 29, 2018
WESMAR Stern Thrusters Standard on Rotomite Dredges
WESMAR stern thrusters for positioning and pushing are an important feature of the Crisafulli hydraulic dredges... read full story
Oct 11, 2017
WESMAR Thruster Moves Four Lobster Boats at Once
Atelier F.R. Robichaud, WESMAR's New Brunswick, Canada put Wesmar thrusters to the test... read full story

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