This is the Briggs & Stratton Vanguard 33 HP 993cc Horizontal Shaft Engine 611477-1246-J1.

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:

• Advanced Debris Management System allows the engine to run cleaner and cooler, which enhances durability and performance
  
• Foam pre-cleaner traps large debris before it can clog the filter element and rob the engine of needed air
  
• Industrial grade solenoid shift starter assures quick, reliable starts
  
• Full-pressure oil lubrication system with spin-on filter works to keep oil cleaner, which reduces maintenance and extends engine life
  
• Buyer protection package provides three-year commercial limited warranty