- Comparison Chart
- Boat size Up to 40'
- Horsepower 5.0
- Voltage 12 VDC
- RPM 3500
- Current 500 Amps
- LayoutDual Prop
- Datasheet ST340-OB Stern Thruster Datasheet
The ST340-OB Stern Thruster from Sideshift is perfect for most boats up to 40' in length; the unit attaches to the cavitation plate of any outboard motor or sterndrive, eliminating the installation issues common to most outboard or sterndrive powered boats. The unique mounting position creates zero drag as the thruster rides above water when the boat is on plane, and the unit can be easily installed in-water in only a few hours.
The powerful, water-cooled 12V motor and heavy-duty 8" aluminum propellers provide instant lateral thrust for stress-free docking in any situation. Saltwater proven, the thruster is anode protected and finished with anti-foul paint over epoxy primer to prevent corrosion.
And for boats with existing bow thrusters, you can add our dual wireless joystick option for easy single-handed control of both thrusters, providing true 360 degree control in any docking situation.
Shipped as a complete kit including:
- Motor controller
- Wireless joystick(Dual joystick when purchasing bow and stern thruster kits together)
- Wiring harness and mounting hardware
- Outboard/Sterndrive mounting plate
- Fuse with digital voltage indicator
- Battery switch
- Wireless remote key fob
Significantly lower installed cost, more responsive performance, no mounting holes below the waterline, virtually silent operation – These are only a few of the many benefits you receive when choosing a Sideshift thruster over conventional thruster systems.
Features Sideshift Conventional Thrusters Easy same-day installation Yes No No tunnel or mounting holes below waterline Yes No In-water installation possible Yes No Virtually silent operation Yes No Zero drag when planing Yes No Pivot point advantage for optimal performance Yes No Prop-in-water design for greater responsiveness Yes No Canadian built to perform in heavy weather conditions Yes No Can be retrofitted to a future boat Yes No Virtually maintenance free Yes No All-inclusive kit Yes No 2-year Warranty Yes Yes Potential to void hull warranty No Yes Fits any type of boat – cruiser, trawler, cuddy, sailboat, pontoon or houseboat Yes No Typical installed cost for boats up to 75’ $3,300-$6,700 $7,500-$15,000 Detailed Cost Breakdown Sideshift Conventional Thrusters 2.5hp – 7.5hp Thruster $2,900-4,900 $3,000-7,000 Additional hardware $200 $300-500 Batteries/cable $200-500 $200-500 Installation - DIY - Not Available Installation - Dealer $800-1,200 $4,000-7,000 Total Installed Cost $3,300-6,700 $7,500-15,000
Do-It-Yourself Installation or leave it to the professionals – it’s your choice.Bow & Stern Thruster Installation Manual
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 questions.
- Return Policy
All Sideshift Inc. products are warrantied to be free from defects due to faulty workmanship or defective materials for a period of two years.More
Products failing within the warranty period should be returned to Sideshift assembled and complete with a copy of the original invoice. Return requests must be emailed, mailed or faxed to Sideshift. The request should include an itemized list of material, stating the reason for the requested return. Upon approval Sideshift will assign a Return Merchandise Authorization Number which must be placed on the return shipping container. Delivery of returned merchandise will be refused and credit will not be issued without written authorization and shipping instructions from Sideshift.
Sideshift Inc. will not be responsible for accidental damage or expense caused by the following conditions:
- Damage due to improper installation
- Improper wire size or low voltage conditions
- Burn-out due to overloading motor or related damage
- Tampering with or altering the motor before, during or after installation
- Damage due to collision of any kind
- Damage due to entanglement of foreign objects such as fishing line and netting material
- Warranty does not cover paint damage, dents, nicks and normal wear and tear of the product following delivery and installation
In the unlikely event that you would want to return your Sideshift thruster system, please note the following;More
All returns are subject to a possible restocking charge. We do our best to keep this charge reasonable, but keep in mind that all returns must be inspected, tested, refurbished in some cases, and then repackaged. All of these steps have costs associated.
All return requests must be emailed or initiated by phone with Sideshift. The request should include a reason for return, as well as itemized list of material. Upon approval Sideshift will assign a Return Merchandise Authorization number (RMA) which must be placed on the return shipping container. All returns must be shipped freight prepaid, and credit cannot be issued on returns with missing parts. Sideshift cannot accept returns for products that have already been installed, or for products that were purchased more than 30 days prior to the return request.