The Vanguard® 27.6 Gross kW EFI/ETC horizontal shaft BIG BLOCK™ engine is engineered for optimal performance in demanding sectors such as agriculture, construction, and industrial machinery. With a power output of 37 HP at 3600 RPM, this engine features cutting-edge electronic Fuel Injection (EFI) and Electronic Throttle Control (ETC) technologies, ensuring real-time adjustments for fuel efficiency and throttle responsiveness. Its design minimizes vibration, maintains consistent RPM under heavy loads, and offers prolonged runtimes, making it the perfect solution for equipment that requires robust and fuel-efficient operation in tough conditions.
- Power for heavy-Duty Applications: The high-displacement V-Twin engine provides substantial torque and horsepower, ideal for rigorous commercial machinery.
- Enhanced Stability: Optimized internal components considerably reduce vibration, improving operational stability and user comfort.
- Efficient Power Management: The closed-loop EFI and rapid-response ETC ensure stable RPM, fuel savings, and superior throttle control.
- Robust Construction: designed for durability,this engine excels in maintaining efficiency and performance under continuous stress.
Key Features & Advantages
- Superior Sound Quality
The resin blower housing and phase-modulated flywheel fan contribute to a quieter engine tone, enhancing the operator’s experience. - V-Twin Overhead Valve Technology
The overhead valve design boosts power and efficiency, while the V-Twin configuration ensures smooth and balanced operation. - Effortless Starting
The mechanical compression release and Magnetron® ignition facilitate speedy starts, with options for solenoid shift and rewind start. - Exceptional Durability
The cast iron sleeve and reinforced block are designed to withstand wear and ensure reliable oil control, even under high-load conditions. - Cyclonic Air Filtration
The five-inch cyclonic air cleaner effectively filters out airborne debris, protecting internal components and extending service intervals. - Advanced Electronic Fuel injection (EFI)
The closed-loop EFI system automatically fine-tunes fuel and spark for easier starts, optimized performance, and potential fuel savings of up to 25%.* - Real-Time Electronic Throttle Control (ETC)
ETC adapts to load variations instantly, maintaining RPM stability through flywheel speed sensors and electronic throttle adjustments. - Prolonged engine Longevity
Dual ball bearings and a full-pressure lubrication system with a spin-on filter offer long-lasting protection for moving components. - Optimal Balance
The balanced crankshaft and lightweight piston assembly reduce vibration and enhance thermal resilience. - High-Efficiency Cylinder Head Design
Angled ports enhance combustion efficiency and fuel mixing, leading to lower emissions, improved idling, and consistent power output.
Technical Specifications
| Engine Type: | V-Twin, 4-stroke, air-cooled, OHV |
| Model Number: | 61A7 |
| Gross Power @ 3600 rpm: | 27.6 kW / 37.0 HP* |
| Displacement: | 993 cc |
| Cylinder Material: | Cast iron sleeve |
| Bore & Stroke: | 85.5 mm x 86.5 mm |
| Fuel tank Capacity: | N/A |
| oil Capacity: | 2.3 liters |
| Compression Ratio: | 8.2 : 1 |
| Air Cleaner Type: | Five-Inch Cyclonic Air Cleaner |
| Ignition system: | Computer controlled Battery Ignition |
| Lubrication System: | Full Pressure with Spin-On Oil Filter |
| Dimensions (L x W x H): | 561 x 514 x 626 mm |
| Dry Weight: | 56.7 kg |
| Optional Features: | Low Profile Air Cleaner, Oil Pressure Switch, Flywheel Stub Shaft, High and Mid Mount Mufflers, Alternators (9–50 amp), Key switch, Tach/Hour Meter with Check Engine Light, Spline Crankshaft |
*Power ratings are expressed in gross kilowatts per SAE J1940 as certified by Briggs & Stratton. Fuel savings may vary based on specific application conditions.
