Briggs & Stratton 44T977-0053-G1 Commercial Turf Series 25 HP 724cc V-Twin Vertical Shaft Engine

The Briggs & Stratton 44T977-0053-G1 is a genuine OEM replacement engine from the Commercial Turf Series, delivering 25 gross horsepower from its 724cc displacement. This V-Twin, 4-stroke overhead valve (OHV) engine is built for demanding commercial applications including zero-turn mowers, riding mowers, and other professional-grade outdoor power equipment.

Key Features:

• 25 HP / 724cc V-Twin OHV Engine — delivers true commercial power in a well-balanced, compact design
• 5-Stage Integrated Cyclonic Air Cleaner — provides advanced protection against airborne debris for superior durability
• Cast Iron Cylinder Sleeve — adds integrity and wear resistance while improving oil control for extended engine life
• Full Pressure Lubrication with Oil Filter — ensures continuous oil delivery to critical engine components
• Mechanical Governor — controls engine speed under varying loads for more usable power in heavy-use conditions
• Electric Start with 16-Amp Regulated Alternator — provides effortless ignition and consistent power to electrical accessories
• Integrated Oil Cooler — minimizes thermal wear and maximizes engine longevity during extended operation
• Vertical Shaft Mounting — 1" diameter x 3-5/32" usable length crankshaft compatible with a wide range of commercial equipment
• Fuel Pump Included — supports remote fuel tank configurations
• Forced Air Cooling — maintains safe operating temperatures during prolonged use

Specifications:

• Engine Series: Commercial Turf Series
• Displacement: 724cc
• Horsepower: 25 HP (gross)
• Valve Type: Overhead Valve (OHV)
• Shaft Orientation: Vertical
• Shaft Size: 1" Diameter x 3-5/32" Length
• Starter Type: Electric Start
• Alternator: 16 Amp
• Oil Capacity: 2.1 qt (2.0 L)
• Recommended Oil: Vanguard 15W-50 Full Synthetic
• Throttle / Choke: Remote
• OEM Part Number: 44T977-0053-G1
• Engine Code: 44T977G AF0001

As a genuine Briggs & Stratton OEM part, the 44T977-0053-G1 is engineered to meet original equipment specifications, ensuring a reliable fit and long-term performance. Muffler is not included.