

⚡ Power up your ride with effortless starts and unstoppable torque!
The BRIGGS & STRATTON 44S977-0033-G1 is a professional-grade 724cc, 25 Gross HP vertical shaft V-Twin engine featuring a 12V electric start with a 16 amp alternator, durable Dura-Bore cast iron cylinder sleeve, overhead valve technology, and a float feed carburetor. Engineered for reliable, efficient power in riding mowers and tractors, it offers easy installation and long-lasting performance favored by professionals and enthusiasts alike.






| ASIN | B076J6LDQF |
| Best Sellers Rank | #154,681 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,163 in Agricultural Machinery Spare & Replacement Parts |
| Customer Reviews | 4.6 4.6 out of 5 stars (138) |
| Item Weight | 2 pounds |
| Item model number | 44S977-0033-G1 |
| Manufacturer | Briggs and Stratton |
| Product Dimensions | 18.81 x 17.9 x 14.96 inches |
J**N
Went awesome
Direct replacement, installed and running great. Thanks
R**P
Tips, plus Very Powerful
Quick tips. This does not use a choke cable so just dont even try to connect one. This does not come with a starter solenoid, just pick up a 2 prong starter solenoid at any auto parts store. Does not come with oil in it. Many reviews say they had to tap the motor mount holes, dont waste your time with this, just get a bolt and locknut. Easy install and mows a lot more powerful than the Kawasaki 20hp i had on it!
M**D
Perfect fit.
This was a perfect fit for my 2013 Ferris IS600Z using a legacy 44Q7775145G5 with 595730 Crankshaft. Working as it should. White smoke for about a 30 min. Box included (2) muffler gaskets with engine manual. No oil as expected.
B**S
Works great
Fired right up after install and works great!
A**O
briggs & stratton 25hp works like new
box came soaked in oil no dammage to box or engine very easy to install works great thank you
K**K
Great replacement engine
Fantastic engine. Replaced a similar engine on a Husqvarna 48” mower. Has a lot more power than similar HP Briggs Intek
J**R
Direct works best
Ordered a B&S motor from Outdoor Power through Amazon. Motor was received early delivery. Packaging was very well done. Motor came with everything needed to install. Unfortunately I had to return the motor the shaft was the wrong size for our configuration. Word of caution, the return process was difficult not because of Outdoor Power but because of Amazons third party return process. Outdoor Power was great explaining the return policy of Amazon.
A**R
Would not recommend
When this motor arrived the box was damaged and oil was all inside box. I was desperately needing this motor and the engine appeared fine so I went ahead with the install. Everything went fine and put oil in and checked to ensure had plenty of oil and fired it off. White smoke went everywhere and filled the whole garage with white smoke. I thought maybe it was just the first run. The smoke has gotten better but still smell a burnt oil smell as I mow. Tried to return or replace or some kind of support and can’t get anything. Would not recommend this motor to anyone
Trustpilot
3 weeks ago
1 month ago