Vanguard’s most powerful EFI horizontal shaft engine for extreme-duty commercial equipment

The Vanguard® 29,9 Gross kW EFI/ETC BIG BLOCK™ engine represents the peak of Vanguard’s horizontal shaft EFI line, developed through close collaboration with OEMs needing unparalleled power, torque, and dependability. Designed as a diesel alternative, it provides real-time adaptive fuel and throttle control through a closed-loop EFI and Electronic Throttle Control (ETC) system. With exceptional torque delivery, automatic altitude adjustments, superior stale fuel resistance, and industry-leading fuel efficiency, this 40 HP powerhouse is purpose-built for the most demanding agricultural, construction, and industrial platforms.

• Power for heavy-duty tasks: High-torque V-Twin design ensures consistent power for large-scale machines in extreme conditions.
• Smooth operator: Dynamically balanced internals reduce vibration and operator fatigue.
• Efficient power delivery: EFI and ETC deliver better starts, adaptive throttle control, and improved fuel use.
• Durable design: Built from rugged materials with cast iron sleeves and high-efficiency filtration for long-term operation.

• Improved Sound Quality
  Engineered blower housing and flywheel fan reduce noise and deliver a smoother acoustic signature in operation.
• V-Twin OHV Technology
  V-Twin configuration with overhead valves increases torque and improves combustion efficiency, enhancing power output and durability.
• Smooth Easy Starting
  Mechanical compression release and Magnetron® ignition ensure fast, maintenance-free starts; optional solenoid shift and recoil starters available.
• Maximum Durability
  Robust aluminum block paired with cast iron sleeves withstands intense wear and optimizes oil control under sustained load.
• Cyclonic Air Cleaner
  Advanced five-inch cyclonic air filtration guards internal components from airborne particulates in harsh environments.
• Electronic Fuel Injection (EFI)
  Closed-loop automotive-grade EFI system ensures real-time fuel management for smoother starts and up to 25% fuel savings.*
• Electronic Throttle Control (ETC)
  ETC instantly reacts to load changes via RPM sensing and throttle body adjustment, maintaining constant power under variable demand.
• Extended Engine Life
  Spin-on oil filter, dual ball bearings, and full-pressure lubrication protect critical parts, supporting long operational life.
• Superior Balance
  Balanced crankshaft and lightweight piston/ring set reduce vibration, enhancing durability and performance consistency.
• High Efficiency Head Design
  Angled ports improve air-fuel mixing, delivering cleaner emissions, smoother idle, and higher efficiency.

*Power levels are stated gross kilowatts per SAE J1940 as rated by Briggs & Stratton. Fuel savings may vary depending on usage conditions and application design.