Vanguard 23 Gross HP* V-Twin H/S


Typical applications for this high-performance Vanguard™ engine include: Golf and Turf Equipment, Utility Vehicles, Commercial Mowers and Power Packs

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This engine is design-engineered to dependably take on the most demanding commercial applications. Energetic and quick starting, this powerhouse features a number of advanced technologies and integrated components that are proven to elevate the reliability standard, which helps hardworking people get a lot more done in less time.



Engine Warranty

New 3 year global commercial engine warranty

Dura-Bore Cast Iron Cylinder Sleeve

Assures long engine life and improved oil control

V-Twin OHV Technology

Superior balance, low vibration, lower emissions, improved valve life, better fuel economy and higher HP/Weight

Cooler Cleaner Technology (efficient fan, improved debris management)

Efficiently reduces engine and oil temperatures by 25-30 degrees while effectively managing airborne debris

Pressure Regulated Full Flow Oil Filtration

Keeps oil clean longer, extends time between oil changes and extends bearing life

Dual Clean Air Cleaner

Industrial Pleated paper with foam pre-cleaner for extended engine life

Mechanical Compression Release

Smooth easy starting, longer starter life and provides an instant return to maximum power


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

Oil Cooler

Reduces oil temperature, improves lubrication, and extends oil change intervals


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

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

New Idle Down

Automatically lowers RPM when power not required. Results in lower fuel consumption and lower noise.


Poly-Core Blower Housing

Lowers noise level and improves sound quality

Phase Modulated Flywheel Fan

Lowers noise level and improves sound quality

Acoustically Contoured Crankcase

Lowers noise level and improves sound quality

Lo-Tone Muffler

Lowers noise level and improves sound quality

Engine Specifications

Gross Horsepower* 23
Engine Displacement (cc) 627 cc (38.26 cu in)
Number of Cylinders  Two
Engine Configuration Horizontal
Bore  2.97in (75mm)
Stroke  2.76in (70mm)
Compression Ratio  8.4:1
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 (See Options Tab)
Cylinder Block Aluminum Alloy with Dura-Bore Cast Iron Sleeve
Crankshaft Ductile Iron
PTO Shaft Rotation Counterclockwise from PTO Side
Starter Rewind or Electric
EPA Compliant Engine Yes

Engine Dimensions

Length x Width x Height 12.52in (318mm) x 16.02in (407mm) x 17.68in (449mm)
Weight  77lbs (34.9kg)
Oil Capacity  57.5oz (1.7L)
Engine Displacement (cc) 627 cc (38.26 cu in)

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