This is the Briggs & Stratton Vanguard 23 HP 627cc Horizontal Shaft Engine 386447-0448-F1.

The Small Block V-Twin Vanguard engine is designed-engineered to handle the most demanding commercial applications.

Energetic and quick starting, these powerhouse engines feature a number of advanced technologies and integrated components, while also being lighter and more compact than leading competitor's engines.

Features:

• 627cc Displacement: Balances power and efficiency effectively.
  
• Advanced Debris Management
  
• Dura-Bore Cast Iron Cylinder Sleeve
  
• Oil Cooler and Centrally Located Oil Pump: Keeps the engine running cooler and extends its lifespan.
  
• EPA compliant: Which means it meets all stringent environmental standards, ensuring reduced emissions and a cleaner running engine.

Product Specifications:

• Engine Series Briggs & Stratton Vanguard Series
• Power Rating 23 HP (17.2 kW)
• Displacement 627 cc (cubic centimetres)
• Cylinders 2 (V-Twin)
• Shaft Position Horizontal
• Crankshaft Details 1" Diameter, 2-29/32" (approx. 73.66 mm) long, 1/4" keyway, 3/8-24 tapped end
• Starting System Electric start (12V gear drive) with recoil backup
• Charging System 16 Amp alternator
• Fuel Type Gasoline (petrol), includes fuel pump and tank
• Lubrication System Full pressure with oil filter and oil cooler
• Cylinder Bore Dura-Bore Cast Iron Sleeve
• Muffler Not included