This is the Briggs & Stratton Commercial 27 HP 810cc Vertical Shaft Engine 49T877-0055-Z1.

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.

Features:

• Durability: Features a patented 5-Step Debris Management System and cyclonic air filter designed for extended life under heavy debris conditions.
  
• Lubrication: Equipped with a full pressure lubrication system and a spin-on oil filter for improved component life.
  
• Maintenance: Includes cooling fin inspection panels to speed debris inspection and cleaning.
  
• Compliance: The engine is EPA compliant, meeting stringent environmental standards.

Product Specifications:

• Power Rating 27 Gross HP
  
• Engine Displacement 810 cc
  
• Cylinders 2 (V-Twin arrangement)
  
• Valvetrain Overhead Valve (OHV)
  
• Shaft Mounting Vertical
  
• Shaft Size 1-1/8" Diameter x 4-5/16" Length
  
• Starter Type Electric Start
  
• Fuel Type Gasoline
  
• Oil Type Synthetic 5W-30 or 10W-30
  
• Oil Capacity 68 oz (2.0 L) (for model 49T877-0049-Z1, likely similar)
  
• Alternator 16 Amp
  
• Cooling System Air-cooled with patented 5-step debris management system
  
• Cylinder Sleeve Cast iron (Dura-Bore)

Note: Due to the nature of engines and the inability to verify installation, handling, or operating conditions once delivered, this product is not eligible for return.