This is the Briggs & Stratton Exi Series 7.25 GT 163Cc Vertical Shaft Engine 104M02-0039-F1.

Briggs Stratton Engines are designed to deliver 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 and dependability.

Features:

• The engine has a displacement of 163cc.
  
• Briggs Stratton uses Gross Torque to measure power on smaller engines like this one.
  
• Designed to work seamlessly with genuine OEM Briggs Stratton parts for easy maintenance and repairs.
  
• EPA compliant: Which means it meets all stringent environmental standards, ensuring reduced emissions and a cleaner running engine.

• Engine Type Vertical Shaft, Single Cylinder, 4-Cycle, OHV (Overhead Valve)
• Power Output 7.25 Gross Torque (GT)
• Displacement 163 cc
• Crankshaft 7/8" diameter x 3-5/32" length, BBC stepped (Brake Blade Control)
• Starting System ReadyStart Recoil (manual pull start), no prime or choke needed
• Air Cleaner Dual-sealing paper filter for improved debris resistance
• Fuel Type Gasoline
• Oil Capacity 16 fl. oz. (0.47 L)
• Ignition System Maintenance-free Magnetron electronic ignition
• Muffler Acoustically-engineered for quiet operation