25 Gross HP V-Twin Big Block H/S

Vanguard™ is the proven industry standard for BIG BLOCK™ engine power, performance and reliability. For the most challenging applications—where downtime is not an option—this BIG BLOCK has been expertly engineered to deliver the dependability people need to get a lot more done in less time throughout the workday.

Typical applications for this high-performance Vanguard™ engine include: Concrete Trowels, Chipper/Shredder, Commercial Mowers and Mudboats

FEATURES BENEFITS
Engine Warranty New 3 year global commercial engine warranty
Oil Gard Low Oil Shutdown System Significantly reduces the chance of engine damage due to insufficient lubrication
V-Twin OHV Technology Superior balance, low vibration, lower emissions, improved valve life, better fuel economy and higher HP/Weight
Pressure Regulated Full Flow Oil Filtration Keeps oil clean longer, extends time between oil changes and extends bearing life
Mechanical Compression Release Smooth easy starting, longer starter life and provides an instant return to maximum power
Advanced Debris Management System (ADMS) Featuring
Easy Clean Access
Allows the engine to run cooler and cleaner which enhances durability and performance
Dura-Bore Cast Iron Cylinder Sleeve Assures long engine life and oil control
Lubrication
Oil Drain Convenient drain locations for trouble-free maintenance
Oil Dipstick Provides easy access to check oil levels
Full Pressure Lubrication w/ Spin-On Oil Filter Cleans oil and protects engine components to ensure maximum lubrication and long life
Centrally Located Oil Pump and Pickup Faster priming and allows for a higher angle of operation
Mechanical
Modern Light Weight Pistons w/ Optimized Compliant Ring Package Lowers noise, oil consumption, emissions and reduces wear
High Efficiency Head Design Angled ports optimizes tumble and mixture preparation for improved efficiency, smoother idle, lower emissions and more power
Five-Inch Centrifugal Multi-Stage Air Cleaner Provides maximum engine protection, especially under dirty and dusty conditions
Industrial Grade Solenoid Shift Starter Quick reliable starts
Mechanical Governor Improved speed control and more available power
Magnetron® Electronic Ignition Quick dependable starts with no maintenance required
Simulated Dynamic Crankshaft Balance Techniques Improves engine vibration
Sound
Phase Modulated Flywheel Fan Lowers noise level and improves sound quality
Acoustically Contoured Crankcase Lowers noise level and improves sound quality
Engineered Resin Blower Housing Lowers noise level and improves sound quality
Large Volume Lo-Tone Muffler with Specially Baffled Chambers

Lowers noise level and improves sound quality

Innovative Intake and Exhaust System Lowers noise level and improves sound quality
ENGINE SPECIFICATIONS
Gross Horsepower* 25
Engine Displacement (cc) 896 cc (54.68 cu in)
Number of Cylinders Two
Engine Configuration Horizontal
Bore 3.37
Stroke 3.07
Compression Ratio 8.2:1
Ignition System Magnetron®
Lubrication System Full Pressure w/ Spin On Oil Filter
Carburetor Two Barrel Float Feed
Engine Cooling Air
Engine Fuel Gasoline or Gaseous
Governor Mechanical
PTO (Standard) 1″ SAE Keyway
Cylinder Block Aluminum Alloy with Dura-Bore Cast Iron Sleeve
Crankshaft Ductile Iron
PTO Shaft Rotation Counterclockwise from PTO Side
Starter Industrial Grade Solenoid Shift Electric
EPA Compliant Engine Yes
Length x Width x Height 14.92 x 19.53 x 28.54
Weight 125
Fuel Tank Capacity 3.5qt
Oil Capacity 77.8
Engine Displacement (cc) 896 cc (54.68 cu in)
  • Tapered Crankshaft
  • CARB Compliant
  • Oil Pressure Switch
  • Oil Cooler
  • Alternator (20, 20-50)
  • Key Switch
  • Straight Key Crankshaft (1.125 in, 1.437 in)
  • Speed Sensor
  • Low Profile Air Cleaner
  • High, Low and Side Mount Mufflers

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