Powerful and Easy to Install Stern Thrusters
No matter what weather you’re in, Sideshift is there to help guide your boat
home safely and easily, every time. Our pivot point advantage and unique
prop-in-water design deliver stronger, more immediate performance for
installed cost up to 50% lower
than conventional tunnel thruster
systems. In stressful docking situations where seconds count, Sideshift delivers
the performance you need.
Sideshift’s family of Monohull Bow + Stern Thrusters are perfect for all
boats from 20’ to 60′ in length. They mount easily on the bow or stern of
cruisers, sport boats, sailboats, catamarans, trawlers and more. No expensive
tunnel is required, and our unique universal mounting system requires
holes below the waterline
, eliminating the risk of leaks associated
with all other types of thruster systems.
Did you know that according to
BoatUS Insurance, a full 44% of sinkings are a result of failed fittings below
Silent and immediate response is provided by our prop-in-water design, 8”
aluminum propellers, and heavy-duty water cooled motor. Saltwater proven, our
rugged bow + stern thrusters are anode protected to prevent corrosion.
Maneuver confidently into the tightest slip with a simple touch of the
wireless joystick. Step onto the dock while maintaining total control of your
boat with our wireless key fob controller.
Shipped as a complete kit with thruster, controller, mounting hardware and
wireless joystick, installation takes less than a day.
Are You Docking Like a Pro, or Being the Shore Entertainment?
Does the thought of taking your boat out on the water on a windy day make you
more stressed out than excited? Are you using your boat less and less because of
your fear of docking? You are not alone.
Docking can be one of the most stressful experiences you will face as a boat
owner. Worrying about damaging your boat or your neighbours boat can turn a
beautiful day on the water into a stressful nightmare.
That’s where SideShift can help. Most of our customers purchase a SideShift
thruster system for one or more of the following reasons:
- I Want to Be Able to Park My Boat with Confidence: Slips
are getting tighter, and there are times when the wind just won’t cooperate.
- I Want to Stop Worrying about Damaging My Boat and My Neighbours
Our boats are major investments and I don’t want to risk
damage every time I want to go out on the water.
- I Want to Be Confident Exploring New Places: I bought my
boat so that I could explore new waters, but I need more precise control to
navigate unknown marinas and locks with confidence.
- I Want to Be Able to Dock in Any Condition: Windy
conditions make docking too unsafe for me to manage on my own or with my
- I Want My Boating to Be Fun, Including Docking: Boating
is fun, but docking is stressful and I’m tired of the anxiety that comes with
docking in difficult conditions.
Do any of these points hit close to home? Then a Sideshift thruster
system might be the perfect answer for you.
Sideshift stern thruster
Sideshift bow thruster
No matter what weather you’re in, Sideshift is there to help guide your
boat home safely and easily, every time. Our pivot point advantage and
unique prop-in-water design deliver stronger, more immediate performance
than conventional tunnel thrusters. In stressful docking situations
seconds count, and Sideshift delivers the performance you need.
For over a decade, thousands of customers in over forty countries have
put their trust in Sideshift bow and stern thrusters. Our success is no
secret. All of our products have been purpose-built for the most extreme
weather conditions. Using only the highest quality materials, we provide a
comprehensive two year warranty and we back it all up with the most
responsive product support team in the industry.
Why Sideshift Outperforms Other Docking Solutions
Our bow and stern thrusters rely on a revolutionary design pioneered by
Sideshift that places the thrusters on the outside of the hull, rather than
This unique design allows for quiet operation, better response and easy
installation, all at a lower installed cost than any competing thruster
Sideshift bow and stern thrusters are mounted externally to your boat, Unlike
tunnel thrusters that have the motor mounted inside the hull producing
significant noise and vibration, Sideshift thrusters are silent and vibration
Sideshift thrusters’ external mounting position places our 8” aluminum
propellers in direct contact with the water, providing instant response when
seconds count. Conventional tunnel thrusters have to move water through a tube
or “tunnel” to provide thrust, which can delay response, wasting valuable
seconds in a critical docking situation. In addition, our external mounting
system places the thruster further forward or astern on the boat, which provides
a pivot-point advantage and more immediate response.
When you buy a bow or stern thruster from Sideshift, you’re dealing with the
industry pioneers behind external thruster technology. We help you every step of
the way to ensure that you get the right product, along with unlimited phone
support from our team of technical experts.
Our team at Sideshift has helped thousands of customers with every
kind of boat and installation requirement. You can contact our customer support
directly by phone any time.
Is Sideshift Right for Your Boat?
Sideshift’s bow and stern thruster systems are perfect for most boats between
20 and 60 feet in length, and up to 70 feet for houseboats.
Our bow and stern thrusters are particularly suited to:
- Sports Boats
- Pontoon Boats
Choosing the right bow and stern thruster is as easy as picking the product
that matches the length of your boat. And installation is so easy that it can be
done while your boat is still in the water!
How does Sideshift Compare to Tunnel Thrusters?
What would you say if we told you that you could get better performance, easy
installation, silent operation, and less drag for an installed cost
to 50% lower
than a conventional tunnel thruster?
Click our comparison chart to learn more about the Sideshift
advantage over conventional tunnel thrusters
How do I Install Sideshift Thrusters?
Our thrusters mount easily using our unique, universal mounting system.
Virtually any V-shaped bow, pontoon or stern can be accommodated.
And, to make things even simpler, our thruster systems now come standard with
our wireless joystick technology. The included wireless joystick control offers
simple plug and play for the helm-to-motor controller connection, eliminating
the hassle of long wire-runs, and shaving hours off installation time.
Installing a Sideshift bow and stern thruster is so easy that you can do it
yourself in less than a day. Other thruster systems can cost thousands of
dollars to install and take up to a week to complete. Not Sideshift! Just follow
the on-line video and easy, step-by-step instructions that are included with
every kit to get your boat out on the water faster. And we’re always available
to provide phone support if any questions come up.
Or, if you aren’t comfortable installing a Sideshift thruster yourself, you
can take it to your local marina or boatyard to let the professionals handle it.
Unlike tunnel thrusters which can cost thousands of dollars to install,
Sideshift thrusters can be installed for as little as $800-$1,200. Our thrusters
have been specifically designed for easy installation by any marine mechanic,
and as always, we’re available to speak with your installer if there are any
Sideshift bow + stern thrusters are perfect for any boat from 20 to 60 feet
in length. Our external thrusters have several key advantages and features,
- Lower installed cost than conventional tunnel thrusters
- Powerful, 3500 RPM motor with prop-in-water for instant response
- Drag-free when your boat is on plane
- Whisper quiet
- No tunnel or holes below waterline
In the box
Sideshift bow + stern thrusters are sold as a complete kit. Everything you
need is included except the power source (Some stern installations require an
extension or optional mounting bracket). Our thruster kits include:
- Motor Controller
- Wireless Joystick
- Wiring Harness
- All Mounting Hardware
- SikaFlex Sealant
Simply open the box and get started! When you’re finished the installation
just connect to a dedicated power source and enjoy an amazing boating
Sideshift bow + stern thrusters can be installed in less than a day.
Conventional thrusters take days to install by a professional. At Sideshift, we
make installing your thruster a breeze!
- Easy, do-it-yourself installation
- Detailed installation manual, installation videos and unlimited phone
- Can be installed with your boat in the water
- No holes drilled below the waterline
- No motor inside the hull
- Can be installed by any marina or boatyard
All Sideshift stern thrusters are protected by a comprehensive 2-year
. If you have any issues at all with your thruster, give us a
call. At Sideshift, we always work to make sure every customer is completely
Our thruster motors are sealed and require zero maintenance. You should change
the anodes once per year(more often if pitting is detected) to protect your
investment from corrosion. Ensure that the airline is in good condition and
secured in a dry location. Ensure that the mounting system is properly secured
to the boat and tighten any loose fasteners. As required or when you repaint the
hull, paint the unit with a good quality anti-fouling paint… That’s it!
ST340 Stern Thruster
The ST340 Stern Thruster is made for all types of boats up to 45 feet in
Description: Stern Thruster 12 V DC, 550 Amps, Dual Prop,
Horsepower: 5.0HP Unit Size: 24″ wide x
The ST340 Stern Thruster from Sideshift is perfect for boats up to 45′ in
length; the unit mounts to the underside of a horizontal surface like a swim
platform, or to a vertical surface such as a transom. No tunnel or motor inside
the hull is required. All mounting holes are above the waterline. Mounting to a
vertical surface like a transom can easily be done with the optional Stern
Offering an immediate response with its powerful water cooled 12V motor, the
heavy-duty 8″ aluminum propellers quickly pull the boat quietly and smoothly.
Saltwater proven, the rugged aluminum and stainless steel thruster is anode
protected to prevent corrosion. It is finished with anti-fouling paint over
epoxy primer. Shipped as a complete kit with thruster, motor controller,
wireless joystick, wiring harness and mounting hardware, installation usually
takes less than a day.
Click to view the Stern
Thruster ST340 Datasheet
Click to view the
Sea Ray Bow
Sun Runner Bow
Platform Stern Mount
CATAMARAN AND SAILBOATS