Horizontal V-twin Engine Manufacturer
Fullas is a professional manufacturer of horizontal V-twin engines for generators and industrial power equipment. Featuring a 90-degree V-twin OHV horizontal design, our engines deliver smooth and stable dual-cylinder output with low vibration and noise. Optimized valve timing and combustion efficiency ensure reliable performance, improved fuel economy, and long service life, making them ideal for gardening, agriculture, engineering machinery, and backup power applications.
Horizontal V-twin Engine
Fullas horizontal V-twin engines deliver stable and efficient power for a wide range of industrial applications. Featuring a 90-degree horizontal V-twin OHV design and balanced dual-cylinder layout, they provide smooth operation, strong torque output, and low vibration performance for generators, outdoor equipment, workshops, and backup power systems. Built with durable components and factory-tested for quality, Fullas horizontal V-twin engines offer dependable power you can trust.
678CC Gasoline Engine (FP2V78FD-2)
Looking for a compact horizontal V-twin engine with balanced power output? The 678cc horizontal V-twin gasoline engine delivers smooth operation, stable performance, and efficient fuel consumption, making it suitable for small to mid-range generators, pumps, and light industrial equipment where reliability and durability are required.
764CC Gasoline Engine (FP2V80FD)
Looking for higher output in a compact horizontal V-twin design? The 764cc horizontal V-twin gasoline engine offers strong torque, low vibration, and consistent power under continuous operation, ideal for generators, agricultural machinery, and light industrial applications requiring dependable performance.
999CC Gasoline Engine (FP2V90FD)
Need a powerful horizontal V-twin engine for demanding applications? The 999cc horizontal V-twin gasoline engine features robust construction, high torque output, and stable operation, making it suitable for large generators, industrial equipment, and backup power systems where high performance is critical.
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Twin-Cylinder Engine Technology
Reduced Noise & Vibration
Reduced Noise & Vibration
The horizontal V-twin configuration and balanced dual-cylinder design effectively reduce operating noise and vibration. Optimized airflow and precision-matched components ensure smoother engine rotation, improving operator comfort and stability during long-hour operation.
Reliable Performance
Built with robust materials and a proven OHV structure, the twin-cylinder engine delivers consistent and dependable performance under demanding working conditions. Each engine is factory-tested to ensure stable operation, extended service life, and reliable power output.
Powerful Output
With a 90-degree V-twin layout and optimized combustion efficiency, the engine provides strong torque and responsive power delivery across a wide operating range. This design supports continuous high-load operation for generators and industrial equipment requiring steady and powerful output.
Low Fuel Consumption
Advanced valve timing and efficient combustion design help maximize fuel utilization while reducing unnecessary energy loss. The result is lower fuel consumption without compromising performance, making the engine economical for both continuous and long-term use.
WHAT SETS US APART?
Horizontal V-twin Engine Comparison Chart
| Model | FP2V78FD-2 | FP2V80FD | FP2V90FD |
| Engine Type | V-twin cylinder, 4 stroke, Air-forced, OHV | ||
| Displacement (cc) | 678 | 764 | 999 |
| Net Power (kW / 3600 r/min, SAE) | 14 | 18 | 24 |
| Bore × Stroke (mm) | 78 × 71 | 80 × 76 | 90 × 78.5 |
| Net Torque (N·m / r/min) | 42.0 / 2500 | 51 / 2600 | 70 / 2800 |
| Starting System | Electric start | Electric start | Electric start |
| Lubrication System | Splash + pressure | Splash + pressure | Splash + pressure |
| Fuel Pump | Yes | Yes | Yes |
| Ignitor | Transistorized magneto ignition | ||
| Governor System | Mechanical | Mechanical | Mechanical |
| Air Filter | Foam + paper filter element | Foam + paper filter element | Foam + paper filter element |
| Engine Oil Capacity (L) | 1.5 | 1.8 | 2.3 |
| Net Weight (kg) | 43 | 48.5 | 60 |
| Product Dimension (L × W × H) (mm) | 510 × 400 × 450 | 470 × 505 × 500 | 555 × 567 × 685 |
| Loading Qty (20GP / 40HQ) | 280 / 575 | 108 / 300 | 108 / 300 |
Key Technologies Inside Fullas Horizontal V-Twin Engine
Fullas horizontal V-twin engines are engineered with a balanced 90-degree V-twin configuration, combining dual-cylinder architecture with precision mechanical design. Covering displacement ranges from 678cc to 999cc and power outputs up to 24 kW at 3600 rpm, each core structure is optimized to ensure stable power delivery, mechanical durability, and reliable long-term operation in industrial and generator applications.
Horizontal V-Twin Cylinder Architecture
The 90-degree horizontal V-twin layout provides natural mechanical balance between the two cylinders, significantly reducing vibration compared with single-cylinder engines. This balanced architecture supports smoother rotation and more stable power output, improving operational comfort and extending the service life of key components.
Balanced Torque Output
With net torque output reaching up to 70 N·m at 2800 rpm, the dual-cylinder configuration delivers evenly distributed torque across the operating range. This ensures stable performance under variable and continuous loads, making the engine well suited for generators, industrial equipment, and backup power systems.
Efficient Air-Cooling System
Optimized cooling fins and airflow channels enhance heat dissipation efficiency during operation. The horizontal layout supports effective air circulation around both cylinders, maintaining stable operating temperatures even under high load and long-hour running conditions.
High Mechanical Reliability
Key components such as the crankshaft, valve train, and lubrication system are designed with reinforced structures and precision machining. The combined splash + pressure lubrication system ensures consistent oil supply, reducing wear and improving durability during extended service life.
Compact Structure with High Power Density
By combining a compact overall structure with large displacement options of 678cc, 764cc, and 999cc, the engine achieves a high power-to-size ratio. This allows easy integration into generator sets and industrial equipment without sacrificing output performance.
Stable Operation Under Continuous Load
Optimized crankshaft balance, mechanical governor control, and transistorized magneto ignition ensure smooth and consistent operation during continuous running. The engine maintains stable speed and output, supporting reliable power supply in demanding working environments.