Product Description
Vanguard 356447-0048-G1 18 HP OHV Horizontal Engine 570 cc
(Replaces Briggs & Stratton 356447-3075-G1 & 356447-0649-G1)
The Vanguard 356447-0048-G1 is a reliable 18 HP overhead-valve (OHV) horizontal-shaft engine from Briggs & Stratton’s Vanguard series, engineered for commercial and industrial equipment applications. Built for smooth operation and long service life, this 570 cc V-twin powerplant delivers consistent performance with efficient fuel delivery and balanced torque for demanding machines.
Ideal for use in commercial mowers, pressure washers, generators, and other horizontal-shaft equipment, the Vanguard 356447-0048-G1 features rugged construction, full-pressure lubrication, and quality overhead valve design that enhances cooling and valve longevity. With both electric start and recoil backup, this engine offers dependable starting and versatility in field or shop use.
Engine Specifications
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Engine Manufacturer: Briggs & Stratton (Vanguard Series)
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Model / Part Number: 356447-0048-G1
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Engine Type: 4-Cycle Gasoline OHV V-Twin
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Horsepower: 18 HP (gross) — standard rating for this Vanguard model
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Displacement: 570 cc — common for this engine designation
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Cylinder Configuration: V-Twin
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Fuel System: Carbureted (standard float carburetor)
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Starting System: Electric Start with Recoil Backup
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Shaft Orientation: Horizontal
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Shaft Diameter: 1 in — standard keyed crankshaft size for this model family
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Shaft Length: 2-29/32 in (≈ 2.91 in) — traditional Vanguard crank length for 18 HP horizontal engines
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Ignition System: Magnetron® electronic ignition
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Cooling System: Air-Cooled
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Lubrication: Full-pressure lubrication with spin-on oil filter
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Charging System: 16 Amp alternator (12 V)
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Air Cleaner Type: Dual-Clean™ dual element air filter
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Intended Use: Commercial / Industrial equipment
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Compliance: EPA compliant (reduced emissions)
Key Features
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Commercial 18 HP V-Twin Performance – Balanced power for professional equipment use
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Overhead Valve (OHV) Design – Cooler operation and extended valve life than flathead engines
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Smooth Electric + Recoil Start – Multiple start options for versatility
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Durable 570 cc V-Twin – Strong torque and efficient fuel use
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Full-Pressure Lubrication – Enhanced lubrication for longer engine life
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Dual-Clean™ Air Filtration – Better engine protection in dusty environments
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16 Amp Charging System – Supports electrical accessories and battery charging
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1 in × 2-29/32 in Crankshaft – Standard horizontal shaft size for wide equipment compatibility
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EPA Compliant – Meets applicable emissions requirements
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Commercial Warranty Coverage – Backed by Briggs & Stratton’s Vanguard service support
***NO RETURNS ON ENGINES ALL ENGINE SALES ARE FINAL*** OUR ENGINES ARE BRAND NEW, FULL FACTORY WARRANTY.
