Our Air-cool 360CC Engine delivers 38HP of raw power through a precision-engineered 4-cylinder configuration. Designed by fourobot, this engine features a lightweight 8kg main unit with exceptional thermal management through advanced air cooling technology. With a 10.5:1 compression ratio and 30:1 lubrication ratio, you get reliable performance in demanding environments. Backed by 10 years of manufacturing expertise, CE/ISO certifications, and a 1-year warranty, we maintain 100 units in stock with a rapid 20-day production cycle for small orders.

You're getting more than just an engine. You're investing in a power solution that solves real-world challenges.
This mid-displacement powerhouse uses atmospheric convection and integrated cooling fins to dissipate heat naturally. No complex radiators. No coolant leaks. Just straightforward, efficient operation.
The engine architecture addresses critical pain points you face daily. Heavy system weight? Eliminated. Coolant failures in remote areas? Not a concern. High maintenance overhead? Significantly reduced.
Your operations demand reliability. That's exactly what this design delivers.
| Configuration Items | Parameters |
|---|---|
| Cooling Mode | Air Cooling |
| Cylinder | 4 |
| Performance | 38HP |
| Idle Speed | 2000 rpm/minute |
| Recommended Propeller | 36*10 |
| Spark Plug Type | BM6A |
| Diameter × Stroke | 53mm × 41mm |
| Compression Ratio | 10.5:1 |
| Lubrication Ratio | 30:1 |
| Maximum Fuel Consumption | 280g/kw.h |
| Weight of Main Engine | 8kg |
| Weight of Exhaust | 140g |
| Weight of Ignition | 190g |
| Ignition Voltage | 6V-14.4V |
| Overall Dimension (L×W×H) | 278×182×335mm (±10mm) |
Industrial Agricultural Machinery
Power your heavy-duty rotary tillers and irrigation pumps confidently. In arid regions where water scarcity makes liquid cooling impractical, this Air-cool 360CC Engine thrives. Simple thermal management means fewer points of failure.
All-Terrain Utility Vehicles
Navigate remote forestry and mountain terrain without worry. Radiator punctures won't leave you stranded. The torque-heavy delivery provides the power you need when trails get tough.
Emergency Power Generation
Rely on 5kW-8kW portable generators during disaster recovery. When you need 24/7 uptime under fluctuating thermal loads, simplified mechanical maintenance keeps you running.
Small Aircraft & Drones
The lightweight design and high power-to-weight ratio make it ideal for unmanned aerial vehicles and light aircraft applications.
Lawn Care & Outdoor Equipment
From commercial mowers to outboard motors, the compact structure fits diverse equipment needs while maintaining professional-grade performance.
Weight Reduction You'll Notice
At 8kg for the main unit, you get approximately 20% less weight compared to liquid-cooled alternatives. Easier transportation. Faster deployment. Lower shipping costs.
Immediate Operation in Any Climate
Sub-zero temperatures? No problem. This engine starts reliably without waiting for coolant circulation. Desert heat? The oversized cooling fins maintain head temperatures below 220°C even in 45°C ambient conditions.
Simplified Maintenance Protocol
Your maintenance routine is straightforward. Check the oil, clean the fins, replace the spark plug periodically. No radiator flushes. No coolant mixture calculations. No leak detection headaches.
Proven Power Delivery
The 4-cylinder configuration with 53mm bore and 41mm stroke delivers balanced torque throughout the RPM range. Lower noise and vibration mean operator comfort and extended equipment life.
Our manufacturing process follows strict international standards. Every Air-cool 360CC Engine undergoes:
We hold CE, ISO, TAF, and TELEC certifications. These aren't just badges. They represent our commitment to global quality standards and your peace of mind.

Manufacturing Excellence
Ten years of production expertise means stable, mature processes. We've refined our methods through thousands of units and countless customer applications.
Responsive Supply Chain
Need engines quickly? We maintain 100 units in stock. Small orders (1-10 units) ship within 20 days. Customer inquiries receive responses within 5×12 hours.
Flexible Logistics
Choose the shipping method that works for you. Air freight for urgency. Sea freight for volume. Land transportation for regional delivery.
Customization Support
ODM and OEM services available. We adapt functions based on your country's requirements and specific application needs.

Comprehensive After-Sales
Your investment is protected with a 1-year warranty. Our global local agent network provides timely support wherever you operate.

Q:How does this engine handle extreme desert temperatures?
A:High-flow forced air induction and oversized cooling fins maintain optimal operating temperatures. Even in 45°C ambient heat, head temperatures stay below 220°C.
Q:What oil should I use?
A:We recommend 10W-30 or 15W-40 synthetic oil. The specific viscosity depends on your ambient temperature extremes. This maintains shear stability during high-load operation.
Q:Does air cooling reduce engine lifespan?
A:Not at all. Our engines feature high-silicon aluminum pistons and nikasil-coated bores. Expect operational life exceeding 2,500 hours with proper maintenance.
Q:Can I upgrade to electronic fuel injection?
A:Yes. Modern variants support integrated ECU mapping for EFI systems. This upgrade can improve fuel economy by approximately 15%.
Q:What causes overheating issues?
A:Usually fin blockage or debris in the fan shroud. Regular pneumatic cleaning prevents this completely. It's your primary preventive maintenance task.
Q:What's the recommended fuel type?
A:The 10.5:1 compression ratio is optimized for 87-91 octane fuel. This balances performance with fuel availability across different markets.
Q:How loud is the engine during operation?
A:The 4-cylinder configuration naturally produces less vibration and noise than comparable 2-cylinder engines. Specific decibel ratings depend on your installation and exhaust configuration.
Q:What propeller size works best?
A:We recommend a 36×10 propeller for optimal performance. This balances thrust generation with engine load characteristics.
You get competitive pricing without compromising quality. Fast delivery. Efficient communication. A high cost-performance ratio that makes sense for your business.
Our transparent pricing structure eliminates surprises. You know exactly what you're paying for and what you're getting.
Contact our team at sales@fourobot.com to discuss your specific requirements for Air-cool 360CC Engine today.
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