Briggs & Stratton 25HP V-Twin Petrol Engine (Commercial Pro Series)
$2,850.00
Briggs & Stratton Briggs & Stratton Commercial Pro Series 25HP 724cc engine, SKU 44T977-0042, with 1.1/8; 4-5/16"; Straight Keyway; 1.1/8 Diameter x 4-5/16 Inch Long. Please confirm shaft size and application before ordering.
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Description
Product overview
The Briggs & Stratton 25HP engines are powerful motors for riding mowers and other heavy-duty industrial and commercial applications. Briggs & Stratton motors are a perfect replacement for old, worn-out motors, including those from Kohler and other top brands. Whether you’re replacing your walk-behind mower’s motor, replacing a powered saw motor or building the perfect go-kart, this motor fits into many compact engine compartments and can replace many bigger motors as well. This Hampton Mower Centre listing is for the exact option/version: Default Title, SKU/model code 44T977-0042.
Key specifications
| SKU / model code | 44T977-0042 |
|---|---|
| Brand | Briggs & Stratton |
| Engine series | Briggs & Stratton Commercial Pro Series |
| Horsepower | 25HP |
| Engine cc | 724cc |
| Engine style / orientation | Vertical |
| Cylinders | 2 |
| Engine type | 4 Cycle OHV |
| Cooling system | Air |
| Bore | Type Cast Iron Bore 3.3 inches |
| Stroke | 2.89 inches |
| Starting system | 12 volt key start |
| Ignition system | Electronic Spark Oil Filter Yes |
| Oil filter | assures controlled lubrication for extended component life Keyway |
| Oil capacity | 2 Qts Muffler Not Included |
| Muffler | Not Supplied with engine – Can be supplied at additional cost (Available on our Accessories Page) |
| Air cleaner | Cyclonic w/Pre Filter |
| Fuel tank | Not Included |
| Shaft size | 1.1/8 Diameter x 4-5/16 Inch Long |
| Shaft diameter | 1.1/8 |
| Shaft length | 4-5/16" |
| Shaft type / keyway detail | Straight Keyway |
| Crankshaft rotation | Counterclockwise |
| Crankshaft end tapped size | 7/16-20 |
| Crankshaft keyway width | 1/4 Inch |
| Dimensions | 18.25 (in) x 19.25 (in) x 20 (in) (LxWxH) |
| Dry weight | 94 Lbs |
| Warranty | 2 Years |
Typical applications / fitment
Please confirm your engine model, shaft type, shaft size, shaft length and application before ordering. If you are unsure, contact Hampton Mower Centre with your model/type code and photos.
Need workshop support or a repair?
For repairs and servicing, Hampton Mowerpower is the physical workshop at 87 Ludstone Street, Hampton VIC 3188. Commercial equipment repairs are normally targeted at approximately 1-2 business days and domestic repairs approximately 3-4 business days, subject to diagnosis, approval, parts availability, repair complexity and workshop conditions.
Request a repair | View repair services | Call (03) 9598 6741
Not sure if the machine is worth repairing or whether an engine can be replaced? Ask first with the equipment type, brand/model and symptoms.
Need a repair before replacing the machine?
Commercial Repair Priority — Typical Turnaround 1–2 Business Days. Domestic Repairs — Typical Turnaround 3–4 Business Days. Typical turnaround applies once the machine has been assessed and the repair is approved. Special-order or backordered parts, major engine work, unusual faults or additional diagnosis may take longer.
Repair labour: Lawn Mower $89 + parts; Chainsaw $89 + parts; Line Trimmer / Brushcutter $89 + parts. Minor repairs $22 / $44 / $55 + parts depending on the work required. Larger / commercial equipment including Demo Saw, Jackhammer, Generator, Ride-On Mower, Wacker / Compaction Equipment and Shredder: $155 + parts.
3-Month Domestic Repair & Service Warranty. This warranty relates to the domestic repair/service work performed.
Book a repair | View repair pricing | Call (03) 9598 6741 | Get directions
Additional information
| Weight | 42.6 kg |
|---|---|
| Dimensions | 60 × 45 × 45 cm |





