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TSD Stern Drive Propulsion System

The TSD Diesel Stern Drive System is a compact inboard-outboard propulsion setup designed for small to mid-sized vessels. By integrating an inboard diesel engine with an outboard-mounted drive unit, it offers straightforward installation, efficient power transfer, and easier access for maintenance. This configuration is suitable for leisure boats, fishing vessels, and light commercial craft, offering practical maneuverability and fuel efficiency while maintaining a relatively low profile in the engine compartment.

sterndrive
sterndrive
Product Paramater
Model Engine
Power Range		 Maximum Transmittable
Torque		 Engine
Speed		 Ratio Weight Propeller
Input Speed		 Gear
Mode		 Motor Voltage Cooling Method Steering Angle Lifting Method Lifting Angle Transom Installation Angle Maximum Propeller Diameter
SH-1 79Hp-186Hp
59Kw-139Kw		 420 N.m

2800RPM+

 
 1.39:1
115KG
2800-4500RPM F N R 24V Gear oil internal circulation cooling 35° electric 62° 11°-13° ≤15inch
SH-2 197Hp-295Hp
147Kw-220Kw		 750 N.m 1.27:1 120KG ≤16inch
SH-3 345Hp
257Kw		 900 N.m 2200RPM+ 1.2:1 128KG ≤19inch

TSD Stern Drive

Name Introduction Size Downloads Update Category Thumbnail Copy Link Download
SH-2.pdf Model SH-2 517KB 2 2025-07-02 TSD Stern Drive download Copy Link Download
SH-1.pdf Model SH-1 725KB 4 2025-07-02 TSD Stern Drive download Copy Link Download
SH-Installation Guide.pdf SH-Installation Guide 2.14MB 4 2025-07-02 TSD Stern Drive download Copy Link Download

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8 Key Advantages of Diesel Stern Drive Systems

Diesel stern drive systems offer an outstanding combination of power, efficiency, and safety, making them a preferred propulsion choice for various marine vessels. Here are the top 8 benefits:

 

1. Fuel Efficiency 
Diesel systems save up to 45% in fuel costs compared to gasoline engines, making them highly economical for long-term use.

2. Eco-Friendly 
Diesel engines produce approximately 30% fewer emissions, offering a more environmentally friendly solution.

3. High Power & Torque 
Delivering greater torque at lower RPMs, diesel engines ensure strong, reliable propulsion—especially under heavy load conditions.

4. Enhanced Safety 
Diesel fuel has a higher ignition point, significantly reducing the risk of onboard fires.
 
5. Compact & Space-Saving
The integrated system is compact and well-designed, saving valuable engine room space and simplifying installation.
 
6. Smooth Shifting 
With upgraded cone clutch mechanisms, gear shifting is light, accurate, and responsive—providing a premium user experience.

7. Low Maintenance 
Simple internal layout, fewer components, and a robust design result in lower maintenance frequency and costs.
 
8. Long-Term Cost Advantage

Diesel fuel is generally less expensive than gasoline, and with reduced maintenance needs, the total cost of ownership is significantly lower.

 

Packing and transportation of high efficiency surface piercing propeller
Packing and transportation of marine surface drive for yacht
Packing and transportation of excellent quality surface drive
Packing and Transportation
Our TSD surface drive systems are securely packaged in export-grade wooden crates that comply with international shipping standards. We offer flexible transportation options, including sea, air, and land, tailored to your specific needs. If you have any special requirements, please contact us in advance to ensure we can accommodate your request.
FAQ

  • Q The correct position for installing a surface drive system

    A The correct position for installing a surface drive system:
    The nut on the propeller blade should be positioned 10mm below the boat's transom extension line. However, for some light-loaded high-speed boats, the position may vary slightly, such as being 20mm below the transom extension line.
    The main engine and the transmission shaft should form a straight line, not a large angle. If the engine is revved up and the prop system remains unchanged, the universal joint cage of the coupling will have an angle instead of a straight line, which can cause damage to the coupling cage over time.
    While tilting the engine, the half-immersed propeller and the shaft should also be tilted at the same angle to form a straight line.

  • Q How long is the warranty period for surface drive systems?

    A The warranty period for surface drive systems is typically 18 months, which means that within this period, if there is any malfunction or damage to the parts, the customer can return the damaged parts to the manufacturer for repair or replacement. During the warranty period, the manufacturer will provide free parts and technical support. If the equipment fails or is damaged outside the warranty period, the customer needs to purchase the corresponding parts from the manufacturer and the manufacturer will provide technical support. During the warranty period, only damaged parts are covered by the warranty, and not the damage caused by normal use, which the user will have to bear. The responsibility for shipping costs will also differ depending on whether it is within or outside the warranty period, and specific details need to be checked in the manufacturer's warranty terms and conditions.

  • Q Installation angles for BG and BH surface drive systems

    A Surface drive systems typically come in two installation types: BG and BH. These installation types have different installation angles.
    The installation angle for a BG surface drive system is 45 degrees.
    The installation angle for a BH surface drive system is 10-13 degrees.
    If the installation angle is outside of these ranges, a stainless steel box is needed to connect the surface drive system.

  • Q How long is the service life of the surface drive system?

    A The lifespan of a surface drive system depends on various factors, such as the usage environment, frequency of use, maintenance, and so on. In a good environment, the lifespan of a surface drive system can usually be over 10 years. However, in extreme environments, such as waters with high humidity up to 95%, water temperature up to 38℃, and high salt content, the lifespan of surface drives may be shortened to around 5-6 years. Regular maintenance is necessary to ensure the normal operation and extend the lifespan of the surface drive system.

  • Q How to Maintain Surface Drive Systems and Prevent Corrosion?

    A Cleaning: Regularly clean the surface drive system with soap and water to prevent the formation of marine organisms and scale. Lubrication: Replace the oil seal and lubricating oil every 1000 hours. This will help prevent excessive wear on the surface drive system.
    Replace the corrosion-resistant zinc block: The surface drive system is usually equipped with a corrosion-resistant zinc block to prevent seawater corrosion and weaken the corrosion of the drive system by seawater. If the zinc block is severely corroded, it needs to be replaced with a new one.
    Regular Inspection: The surface drive system should be regularly inspected to ensure that all parts of the drive system are in normal working condition. The inspection should include wires, cables, and all connection components.
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References

船级设
GB/T19001-2016/IS09001:2015.
This certificate is valid to the following scope for QMS: ^DESIGN, DEVELOPMENT AND MANUFACTURE OF MARINE ACCESSORY PRODUCTS (MOVABLE SEMIIMMERSED OAR, FIXED SEMI-IMMERSION OAR, GEAR BOX)*.
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