Briggs Stratton 44S977 0032-G1 vertical Professional Series engine is 724cc and puts out 25.0 gross HP. This Briggs Stratton V-Twin has a 1″ x 3-5/32″ crankshaft. The engine has a 12V electric start with a 16A alternator. A muffler is not included with this engine but is available for sale on our website. The 44S977-0032-G1 replaces model 44S877-0002-G1 and 44Q777-3137-G5.Briggs Stratton Professional Series engines deliver the reliable, efficient power needed for riding lawn mowers and tractors.
| BRAND | Briggs Stratton |
|---|---|
| MODEL NUMBER | 44S877-0002-G1 |
| REPLACES MODELS | 441777-0110-B1, 441777-0110-E1, 445577-1125-B1, 445677-0110-B1, 445677-0110-E1, 445677-0113-B1, 445677-0413-B1, 445677-0413-E1, 445677-0420-B1, 445677-0420-E1, 445677-0421-B1, 445677-0503-B1, 445677-0503-E1, 445677-0725-B1, 445677-0725-E1, 445677-0758-B1, 445677-0758-E1, 445677-0827-B1, 445677-0827-E1, 445677-1113-B1, 445777-0027-E1, 445777-0027-E2, 445777-0112-E1, 445777-0112-E2, 445777-0112-E3, 445777-0113-E1, 445777-0114-E1, 445777-0115-E1, 445777-0116-E1, 445777-0117-E1, 445777-0122-E1, 445777-0126-E1, 445777-0127-E1, 445777-0127-E2, 445777-0129-E1, 445777-0133-E1, 445777-0134-E1, 445777-0135-E1, 445777-0154-E1, 445777-0168-E1, 445777-0172-E1, 445777-0200-E1, 445777-0211-E1, 445777-0231-E1, 445777-0248-E1, 445777-0263-E1, 445777-0352-B1, 445777-0352-E1, 445777-0539-E1, 445777-0560-E1, 445877-0130-B1, 445877-0130-E1, 445877-0130-E2, 445877-0135-B1, 445877-0135-E1, 445877-0136-B1, 445877-0136-E1, 445877-0502-B1, 445877-0502-E1, 445877-0829-B1, 445877-0829-E1, 445877-1105-B1, 446677-0126-B1, 446677-0126-E1, 446677-0366-E1, 446677-0463-E1, 446777-0027-E1, 446777-0027-E2, 446777-0106-E1, 446777-0108-E1, 446777-0115-E1, 446777-0117-E1, 446777-0127-E1, 446777-0165-E1, 446777-0197-E1, 446777-0219-E1, 446777-0245-E1, 446777-0246-E1, 446777-0264-E1, 446777-0362-E1, 446877-0027-E1, 446977-0472-E1, 44M777-0110-B1, 44M777-0110-E1, 44M777-0110-G1, 44M777-0113-B1, 44M777-0113-E1,44M777-0113-G1, 44M777-0118-B1, 44M777-0118-E1, 44M777-0119-B1, 44M777-0119-E1, 44M777-0119-G1, 44M777-0121-B1, 44M777-0121-E1,44M777-0121-G1, 44M777-0122-B1, 44M777-0122-B2, 44M777-0123-G1,44M777-0123-G2, 44M777-0124-B1, 44M777-0125-B1, 44P777-0027-B1, 44P777-0027-E1, 44P777-0027-G1, 44P777-0127, 44Q777-0027-E1, 44Q777-0027-G1, 44Q777-0137, 44Q777-3137, 44Q777-3137, 44Q777-0137, 44Q777-0027-01, 44Q777-0027-E1, 44Q777-0027-E2, 44Q777-0027-E3, 44Q777-0027-E4, 44Q777-0027-E9, 44Q777-0027-B1, 44Q777-0027-B2, 44Q777-0027-B3, 44Q777-0027-B9, 44Q777-0027-02, 44Q777-0027-E7, 44Q777-0127, 441777-0110-B1, 441777-0110-E1, 445577-1125-B1, 445677-0110-B1, 445677-0110-E1, 445677-0113-B1, 445677-0413-B1, 445677-0413-E1, 445677-0420-B1, 445677-0420-E1, 445677-0421-B1, 445677-0503-B1, 445677-0503-E1, 445677-0725-B1, 445677-0725-E1, 445677-0758-B1, 445677-0758-E1, 445677-0827-B1, 445677-0827-E1, 445677-1113-B1, 445777-0112-E1, 445777-0112-E2, 445777-0112-E3, 445777-0113-E1, 445777-0114-E1, 445777-0115-E1, 445777-0116-E1, 445777-0117-E1, 445777-0122-E1, 445777-0126-E1, 445777-0127-E1, 445777-0127-E2, 445777-0129-E1, 445777-0133-E1, 445777-0134-E1, 445777-0135-E1, 445777-0154-E1, 445777-0168-E1, 445777-0172-E1, 445777-0200-E1, 445777-0211-E1, 445777-0231-E1, 445777-0248-E1, 445777-0263-E1, 445777-0352-B1, 445777-0352-E1, 445777-0539-E1, 445777-0560-E1, 445877-0130-B1, 445877-0130-E1, 445877-0130-E2, 445877-0135-B1, 445877-0135-E1, 445877-0136-B1, 445877-0136-E1, 445877-0502-B1, 445877-0502-E1, 445877-0829-B1, 445877-0829-E1, 445877-1105-B1, 446677-0126-B1, 446677-0126-E1, 446677-0366-E1, 446677-0463-E1, 446777-0027-E1, 446777-0027-E2, 446777-0106-E1, 446777-0108-E1, 446777-0115-E1, 446777-0117-E1, 446777-0127-E1, 446777-0165-E1, 446777-0197-E1, 446777-0219-E1, 446777-0245-E1, 446777-0246-E1, 446777-0264-E1, 446777-0362-E1, 446877-0027-E1, 446977-0472-E1, 44M777-0110-B1, 44M777-0110-E1, 44M777-0110-G1, 44M777-0113-B1, 44M777-0113-E1, 44M777-0113-G1,44M777-0118-B1, 44M777-0118-E1, 44M777-0119-B1, 44M777-0119-E1, 44M777-0119-G1, 44M777-0121-B1, 44M777-0121-E1, 44M777-0121-G1,44M777-0122-B1, 44M777-0122-B2, 44M777-0123-G1, 44M777-0123-G2,44M777-0124-B1, 44M777-0125-B1, 44P777-0127, 445777-0027-E1, 445777-0027-E2, 44P777-0027-B1, 44P777-0027-E1, 44P777-0027-G1, 44Q777-0027-E1, 44Q777-0027-G1, TVT691, 44Q777-0037, 44Q777-0037-G1, 44P777-1273-B1, 44P777-0721-B1, 44P777-0706-B1, 44P777-0153-G1, 44P777-0150-B2, 44P777-0150-B1, 44P777-0149-G2, 44P777-0149-G1, 44P777-0135-G1, 44M777-1193-B1, 44M777-0729-B1, 44M777-0720-B1, 44M777-0149-G1, 44M777-0148-B2, 44M777-0148-B1,44M777-0147-G2, 44M777-0147-G1, 44M777-0139-B1, 44M777-0135-G1,44M777-0133-G1, 445877-0132-B1, 445677-1274-B1, 445677-1262-B1, 445677-1199-B1, 445677-1198-B1, 445677-1188-B1, 445677-0128-B1, 445577-1187-G1, 445577-1187-B1, 445677-0413, 445577-0755-E1, 44Q777-3137-G5, 44Q777-3137 |
| WARRANTY | 2 Year Consumer / 1 Year Commercial |
| SHIPPING WEIGHT | 84 |
| DISPLACEMENT | 724cc |
| STARTER TYPE | Electric |
| CRANKSHAFT ORIENTATION | Vertical |
| CRANKSHAFT TYPE | Straight |
| FUEL SYSTEM | Gasoline |
| GEAR REDUCTION | No |
| CRANKSHAFT DIMENSIONS | 1″ x 3-5/32″ |
| CRANKSHAFT LENGTH | 3-5/32″ |
| CRANKSHAFT END TAPPED SIZE | 7/16 – 20 |
| CRANKSHAFT ROTATION DIRECTION (FROM PTO SIDE) | Counterclockwise |
| BEARING TYPE | High Radial Load PTO |
| CYLINDERS | 2 |
| CYLINDER BORE TYPE | Cast Iron Sleeve |
| AIR CLEANER TYPE | Cartridge with Pre Filter |
| FUEL TANK | No |
| FUEL PUMP | Yes |
| OIL COOLER | No |
| OIL CAPACITY | 64 |
| LOW OIL ALERT | No |
| LOW OIL SHUTDOWN | No |
| IGNITION SYSTEM | Electronic |
| CARBURETOR TYPE | Float |
| CHOKE CONTROL | Choke-A-matic |
| MAX RPM | 3300 |
| CHARGING SYSTEM | 16 |
| BOLT CIRCLE | 10″ |
| FLYWHEEL | Heavy |
| NOTES | Engine Notes: |
| PTO HEIGHT | N/A |
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