The Water-cool 100CC Engine for Surfboard from fourobot delivers enterprise-grade performance with 7.2kW output and 50km/h extreme speed. Our SSL-100-W model features advanced digital fuel injection, speed-dependent water cooling, and a lightweight 4650g design. With 100 units in stock, a 20-day production cycle, and CE/ISO certification, we combine 10 years of manufacturing expertise with fast 5×12-hour response times and comprehensive 1-year warranty coverage to meet your demanding aquatic applications.

Your motorized surfboard deserves power that won't quit when you need it most. Our Water-cool 100CC Engine for Surfboard uses a closed-loop liquid cooling system that manages thermal loads during high-RPM operation. This prevents thermal runaway in enclosed hull compartments.
You get consistent torque delivery even during extended sessions. The water-jacketed design keeps your engine at optimal temperature. This extends the lifespan of internal components in harsh saltwater environments.
We designed this engine for riders who push boundaries. The NiCom-plated cylinder bore offers superior wear resistance. Anti-corrosive aluminum-alloy crankcase stands up to marine conditions. Saltwater-resistant gaskets prevent electrolyte-induced damage.
You won't experience power fade during long rides. The cooling system maintains performance when air-cooled engines would overheat.
| Configuration | Parameters |
|---|---|
| Cooling Mode | Water Cooling (Speed-dependent) |
| Cylinder | Single Cylinder |
| Engine Type | 2-stroke |
| Displacement | 100CC |
| Power Output | 7.2kW |
| Extreme Speed | 50km/h |
| Fuel Type | Lead-free 95+ octane with fully synthetic two-stroke racing oil (50:1 ratio) |
| Fuel Supply System | Digital fuel injection + self-pressure oil pot with diaphragm oil dispenser |
| Battery Life | 60 minutes at full speed / 3.5+ hours at 12.5V |
| Charging Time | 2 hours (when above 9.8V) |
| Engine Weight | 4650g |
| Dimensions (L×W×H) | 400×200×115mm (±10mm) |
Your engine maintains consistent performance through our speed-dependent water cooling system. No more waiting for cool-down periods between rides. The liquid cooling jacket manages heat far better than air-cooled alternatives.
At just 4.65kg, you get exceptional power-to-weight ratio. This means better board handling and improved maneuverability. The compact 400×200×115mm footprint fits seamlessly into your surfboard design.
Digital fuel injection ensures precise fuel metering. You get better fuel economy and cleaner combustion. The self-pressure oil pot with diaphragm dispenser maintains consistent lubrication under all operating angles.
Enjoy 60 minutes of full-throttle operation on a single tank. For cruising, you get over 3.5 hours of ride time. Quick 2-hour charging gets you back on the water fast.
Every component withstands saltwater exposure. Anti-corrosive materials throughout. Built to last through hundreds of hours of demanding use.
You need sustained peak RPMs without overheating. Our Water-cool 100CC Engine for Surfboard delivers consistent performance in choppy conditions. Maintain your competitive edge from start to finish.
Your business demands reliability. Run back-to-back rentals without downtime. The liquid-cooling system eliminates traditional cooling-down periods. Maximize your fleet utilization and revenue.
When lives depend on your equipment, you need unwavering performance. Our engine provides reliable high-torque thrust through heavy surf. The cooling system uses abundant seawater, ensuring functionality during critical operations.
You want proven technology for your custom builds. Our compact design integrates easily. Simple structure means straightforward installation and maintenance.

Every engine undergoes comprehensive quality control:
Ten years of production expertise backs every unit. Our mature processes ensure stable quality. You get the reliability that comes from thousands of engines in the field.
We maintain 100 units in stock for immediate shipment. No lengthy waiting periods when you need engines now.
Order 1-10 units? Expect delivery within 20 days. We understand your project timelines matter.
Get answers within 5×12 hours. Our team stays available when you need support.
Choose air, sea, or land transportation based on your needs and budget. We arrange logistics to match your requirements.
Need specific modifications? Our ODM/OEM capabilities support function customization for different markets and applications. Adapt the engine to your unique requirements.

Your 1-year warranty includes global local agent support. Get timely service wherever you operate. We stand behind our products.

Q1: How often should I maintain the cooling system?
A:Flush with freshwater after every saltwater use. This prevents mineral deposits in the cooling jacket. Regular flushing extends engine life significantly.
Q2: What fuel mixture should I use?
A:Use a precise 50:1 ratio of lead-free 95+ octane gasoline to fully synthetic two-stroke racing oil. Always use TC-W3 certified marine synthetic oil for best results.
Q3: Can the engine handle sandy or silty water?
A:Yes, with precautions. The inline sediment filter protects the cooling system. Inspect and clean the filter frequently when operating in shallow, sandy areas.
Q4: Why choose liquid cooling over electric motors?
A:You get higher energy density and significantly longer range. Refueling takes minutes versus hours of charging. For extended sessions and remote locations, liquid-cooled engines offer clear advantages.
Q5: How long will the engine last?
A:With proper maintenance and cooling system care, expect 300+ hours before requiring a top-end rebuild. This far exceeds air-cooled equivalents. Many users report even longer service lives with careful operation.
Q6: Does the engine work in all water temperatures?
A:The speed-dependent cooling adapts to various conditions. Warmer water requires slightly higher speeds for optimal cooling. Cold water environments pose no problems.
Q7: What about warranty coverage for saltwater use?
A:Our 1-year warranty covers marine applications when you follow maintenance protocols. Regular freshwater flushing and proper oil ratios maintain coverage.
You don't need specialized training to maintain this engine. The straightforward 2-stroke design means fewer moving parts. Replacement components are readily available.
Routine maintenance takes minimal time:
Your focus stays on riding, not wrenching.
While optimized for motorized surfboards, this versatile engine powers numerous applications:
The same reliability and efficiency translate across uses.
Our Water-cool 100CC Engine for Surfboard combines compact design, reliable performance, and enterprise-grade quality. Contact our team at sales@fourobot.com.
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