Our Air-cool 351CC Engine with Electric Starter delivers enterprise-grade performance with 25HP at 7,500 RPM and impressive 112kg pull force at 100m altitude. This dual-cylinder powerhouse weighs just 12.5kg and features proven air-cooling technology backed by 10 years of manufacturing expertise. With 100 units ready to ship, a 20-day production cycle, and compliance with CE and ISO international standards, you get instant deployment capability. The integrated electric starter system ensures reliable ignition in any condition, while our 1-year warranty and global agent network provide complete peace of mind.

You need power you can count on. This engine gives you exactly that.
The SSL-351E combines simple structure with advanced performance. Your operations demand equipment that works when you need it most. That's why we designed this engine with straightforward air cooling - no complex radiators or coolant systems to fail in the field.
Here's what you're getting with our air-cooled power solution:
| Specification | Details |
|---|---|
| Cooling System | Air Cooling |
| Cylinder Count | 2 |
| Power Output | 25HP @ 7,500 RPM |
| Idle Speed | 2,000 RPM |
| Pull Force (100m) | 112kg |
| Pull Force (1,800m) | 108kg |
| Displacement | 351cm³ |
| Cylinder Bore × Stroke | 66mm × 54mm |
| Compression Ratio | 10.5:1 |
| Fuel Mix Ratio | 25:1 |
| Engine Weight | 12.5kg |
| Igniter Voltage | 6V - 14.4V |
| Dimensions (L×W×H) | 357×295×278mm (±10mm) |
| Propeller Compatibility | 30×16; 32×16; 40×18; 45×20 |
| Spark Plug Model | BM6A |
You're working in demanding environments. Traditional liquid-cooled systems add weight and complexity.
Our air-cooling design eliminates those headaches. High-conductivity aluminum alloy fins dissipate heat efficiently. You won't deal with leaking hoses or frozen coolant. The forced-air shroud keeps temperatures stable even under continuous load.
This means less maintenance for you. Fewer parts that can fail. More time running, less time repairing.
Manual pull-starts fail at the worst moments. Cold mornings. Emergency situations. High-altitude operations.
Your Air-cool 351CC Engine with Electric Starter eliminates that frustration. The high-torque 12V starter motor engages instantly. It works reliably down to -20°C thanks to low-viscosity synthetic lubricant and reduction gear design.
Even better? The integrated 3-10 Amp charging stator keeps your battery topped up during operation. You get reliable starting every single time.
Power your pumps, tillers, and irrigation systems. The lightweight 12.5kg design makes installation simple. Air cooling handles dusty field conditions without clogging radiators.
Need backup power on remote construction sites? This engine drives high-capacity generators reliably. Simple thermal regulation prevents the freezing or boiling issues that plague coolant-based systems.
Deploy this as your primary powertrain for cargo transport in rugged environments. Mining sites. Agricultural operations. Anywhere liquid-cooled hoses would get damaged.
Space is precious on boats. Our compact air-cooled footprint saves room. The electric start ensures immediate mobilization when you need backup power.
Professional landscapers trust this displacement class for commercial mowers and equipment. You get the power-to-weight ratio that makes all-day operation feasible.
We back our products with certifications, not just promises.

Our manufacturing complies with CE, ISO, TAF, and TELEC international standards. Every Air-cool 351CC Engine with Electric Starter undergoes rigorous testing:
You're not taking risks with untested equipment. You're investing in proven manufacturing processes refined over 10 years.
Your projects can't wait months for equipment.
We maintain 100 units in stock for immediate shipment. Need 1-10 units? Our production cycle is just 20 days. We respond to inquiries within 5×12 hours.
Multiple shipping options give you flexibility:
Every market has unique requirements. Your country may have different emission standards. Your application might need special configurations.
We offer ODM/OEM customization to match your specifications. Function modifications based on your operational environment. This isn't one-size-fits-all - it's engineered for your situation.

You need equipment that's easy to service in the field.
Check the air-cooling fins every 50 hours for debris. That's your primary maintenance task. No coolant flushes. No complex water pump replacements.
The engine runs on 87+ octane fuel with 25:1 oil ratio. While E15 ethanol fuel is compatible, we recommend adding fuel stabilizer for long-term storage to prevent carburetor corrosion.
Use BM6A spark plugs for consistent ignition performance.
Your warranty shouldn't be worthless paper.
We provide 1-year comprehensive coverage backed by global local agent support. When you need service, you get it quickly from someone nearby - not by shipping equipment across continents.
Our cost-performance ratio combines competitive pricing with reliable quality, fast delivery, and efficient communication. You're partnering with a supplier who understands your business needs.

Q: How does the electric starter perform in extremely cold weather?
A: The high-torque reduction gear and low-viscosity synthetic lubricant ensure reliable engagement down to -20°C. You'll get consistent starts even in harsh winter conditions.
Q: What maintenance does the air-cooling system require?
A: Inspect the cooling fins every 50 hours of operation. Remove any debris that might block airflow. This simple check prevents thermal issues and maintains optimal performance.
Q: Can I use ethanol-blended fuels?
A: Yes, the engine handles E15 ethanol fuel. For best results, use 87+ octane with fuel stabilizer. This prevents carburetor jet corrosion during storage periods.
Q: Does the battery recharge during operation?
A: Absolutely. The integrated 3-10 Amp charging stator replenishes your battery while the engine runs. You maintain starting power for the next use.
Q: What certifications does this engine carry?
A: It's certified under CE for European markets and meets noise emission standards per 2000/14/EC. We ensure global market compliance.
Q: What's included with the engine?
A: You receive the complete engine assembly, dual exhaust pipes (140g each), and the igniter system. Everything you need for installation.
Q: How long do engines typically last with proper maintenance?
A: With regular maintenance and proper fuel ratios, these engines deliver thousands of operational hours. The dual-cylinder design distributes wear for extended service life.
Ready to use the Air-cool 351CC Engine with Electric Starter to power your operations with reliable performance? Contact our team at sales@fourobot.com.
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