Model#: BGSN44S877-0002-G1

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Briggs & Stratton 44S877-0002-G1 724cc Professional Series Engine with 1 in. Tapped 7/16-20 Keyway Crankshaft (CARB)

  • Briggs & Stratton 44S877-0002-G1 724cc Professional Series Engine with 1 in. Tapped 7/16-20 Keyway Crankshaft (CARB)
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The Professional Series line of engines from Briggs & Stratton bring true performance and dependability to the table. Designed to run cooler, quieter and longer, these engines are built to last.
  • Dura-Bore cast iron cylinder sleeve for extended life
  • Dependable float feed type carburetor with integral fuel pump for remote mount fuel tank
  • Maintenance-free Magnetron electronic ignition for quick and dependable starting
  • Mechanical compression release for smooth and fast start ups
  • Cyclonic air filter provides ultimate debris protection while lasting up to 2X longer than panel-style air cleaner systems
  • Full pressure lubrication with spin-on oil filter assures controlled lubrication for extended component life
  • Overhead valve design (OHV) delivers cooler operation and longer valve life
  • Model Specific Features: Choke-A-Matic choke, 12V Gear Drive starter with 16 amp DC alternator and dipstick oil system
  • Please Note: Fuel tank, exhaust manifold and muffler omitted from this model
  • 724cc Professional Series Engine w/ 1 in. Tapped 7/16-20 Keyway Crankshaft (CARB) - 44S877-0002-G1


Series: Professional
Application: Lawn Mowers, Riding Mowers, Tow-Behind Mowers
Carburetor: Float-Feed
Controls: Remote
Cooling System: Air
Crankshaft Diameter: 1 in.
Crankshaft Length (Sump Face to Crankshaft End): 3 5/32 in.
Crankshaft Model Number: 796237
Crankshaft Tapping Size: 7/16 in. - 20
Crankshaft Type: Keyway
Cylinder Bore: 3.12-in (79.2mm)
Cylinder Stroke Length: 2.89-in (73.4mm)
Engine Configuration: Vertical
Engine Displacement: 724cc
Engine Technology: OHV
Fuel Type: Gasoline
Governor: Mechanical
Governor Max. Speed (RPM): 3,300
Horsepower: 24
Lubrication System: Pressure Lube
Number of Cylinders: 1
Oil Capacity: 64 oz.
Power Type: Gas
Shipping Weight: 88 lbs.
Starter: Recoil



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Browse 4 questions Browse 4 questions and 6 answers
does this engine have electric start
Ernie on Sep 3, 2015
BEST ANSWER: Yes,this unit features maintenance-free magnetron electronic ignition for quick and dependable starting.
Well this motor replace a 44Q777?
A shopper on Oct 4, 2017
BEST ANSWER: For assistance with this request, please contact Briggs & Stratton directly at 800-683-8484
will oil-seal # 795387 fit a 24hp v twin drive shaft brigg/stratt engine
minor on Sep 29, 2015
BEST ANSWER: We recommend you consult directly with Briggs and Stratton for your replacement parts question. You can reach Briggs and Stratton at 800-444-7774.
Where do we get the manifold and muffler? It is replacing a 22HP B&S Intek V twin. Will these fit the new engine?
George on Aug 17, 2015
Please contact Briggs and Stratton directly for parts at 800-444-7774.