The Vanguard® 29.9 Gross kW EFI/ETC BIG BLOCK™ engine stands as the pinnacle of Vanguard’s horizontal shaft EFI series, meticulously crafted in partnership with OEMs seeking unmatched power, torque, and reliability.This engine serves as a robust choice to diesel, featuring real-time adaptive fuel and throttle management through its closed-loop EFI and Electronic Throttle Control (ETC) system. With remarkable torque output, automatic altitude compensation, extraordinary resistance to stale fuel, and leading fuel efficiency, this 40 HP engine is specifically engineered for the most rigorous agricultural, construction, and industrial applications.
- Power for demanding applications: The high-torque V-Twin architecture guarantees reliable performance for large machinery operating in extreme environments.
- Reduced vibration: Advanced internal balancing minimizes vibrations, enhancing operator comfort during prolonged use.
- Optimized fuel efficiency: The EFI and ETC systems ensure reliable starts, adaptive throttle response, and enhanced fuel consumption.
- robust construction: Crafted from durable materials, featuring cast iron sleeves and high-efficiency filtration for extended operational life.
Key Features & Advantages
- Enhanced Acoustic Performance
The specially designed blower housing and flywheel fan significantly reduce noise levels, providing a quieter operational experience. - V-Twin Overhead Valve Design
The V-Twin layout with overhead valves boosts torque and combustion efficiency, leading to improved power output and longevity. - Effortless Starting
The mechanical compression release and Magnetron® ignition system facilitate quick, maintenance-free starts; optional solenoid shift and recoil starters are also available. - Exceptional Durability
The sturdy aluminum block combined with cast iron sleeves is engineered to endure heavy wear and optimize oil management under continuous load. - Cyclonic Air Filtration
The advanced five-inch cyclonic air cleaner protects internal components from airborne debris in challenging environments. - Advanced Electronic Fuel Injection (EFI)
The closed-loop automotive-grade EFI system provides real-time fuel management,ensuring smoother starts and potential fuel savings of up to 25%.* - Responsive Electronic Throttle Control (ETC)
ETC adjusts instantly to load variations through RPM sensing and throttle body modulation, ensuring consistent power delivery under fluctuating demands. - Prolonged Engine Longevity
The spin-on oil filter, dual ball bearings, and full-pressure lubrication system safeguard critical components, promoting extended operational life. - Superior Engine Balance
The balanced crankshaft and lightweight piston/ring assembly minimize vibrations, enhancing both durability and performance reliability. - High-Efficiency Cylinder Head Design
Angled intake ports enhance air-fuel mixing, resulting in cleaner emissions, smoother idling, and improved efficiency.
Technical Specifications
| Engine Type: | V-Twin, 4-stroke, air-cooled, OHV |
| Model Number: | 61G2 |
| Gross Power @ 3600 rpm: | 29.9 kW / 40.0 HP* |
| Displacement: | 993 cc |
| Cylinder: | 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: | 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 determined by Briggs & Stratton. Fuel savings may vary based on usage conditions and request design.
