This is the Briggs & Stratton Vertical Shaft Engine 44T977-0053-G1.

Briggs & Stratton Engines are engineered to provide reliable and efficient power for a wide range of outdoor applications.

These engines are built with high-quality materials and advanced engineering to ensure long-lasting performance, dependability, and durability.

Product Specifications:

• Engine Type: 4-Cycle, OHV (Over Head Valve) V-Twin cylinder engine.
  
• Displacement: 724 cc.
  
• Horsepower: Rated at approximately 25 HP.
  
• Starting System: 12V Electric Start with a 16 amp charging system.
  
• Lubrication: Full pressure lubrication with an oil filter for extended engine life.
  
• Cylinder Sleeve: Dura-Bore cast iron cylinder sleeve.
  
• Air Filtration: Features a 5-stage integrated cyclonic air cleaner designed for superior performance and durability in commercial applications.
  
• Crankshaft: 1" diameter, 3-5/32" total length, tapped 7/16"-20 with a keyway.
  
• Fuel Type: Gasoline (Unleaded 86 octane or higher).
  
• Oil Capacity: Approximately 64 fluid ounces (2 quarts).
  
• Cooling System: Forced Air Cooling.
  
• Ignition: Maintenance-free Magnetron electronic ignition.
• Model: 44T977-0053-G1