






🔥 Power your projects with endurance and precision! 🛠️
The Briggs & Stratton 44S977-0032-G1 is a high-performance 25 GHP vertical shaft engine featuring a durable cast iron cylinder sleeve and an overhead valve design for cooler, longer-lasting operation. Equipped with a full pressure lubrication system and a 16 amp charging system, this engine is built to deliver reliable power and extended life for demanding outdoor equipment applications.






| Best Sellers Rank | #89,780 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #291 in Agricultural Machinery Spare & Replacement Parts |
| Customer Reviews | 4.5 out of 5 stars 92 Reviews |
I**E
24 hp plenty of power
Bought to replace an older 22 hp that died. Easy swap out. Runs great, plenty of power.
A**R
Great engine.
This engine has been an absolute work horse for me. I mounted it on a swisher trail mower and I put it through its paces over the last couple of mowing seasons. It has yet to let me down. Worth every penny. I had to alter the pull behind mower a bit for the new engine but once that was done it bolted right up and fired up pretty much instantly. If needing a new mower engine you can’t go wrong.
H**Y
More horse power
great swap for the smaller engines, this one is far superior and stonger. makes cutting grass quick and easy.not to mention, all my neighbors being jealous of how it runs now. yee haaw
G**Y
B&S 44S977
Was very surprised at how quickly I received my order and how well crated it was. My old mower engine got to leaking oil badly. I checked getting it repaired, buying a used engine, or repairing it myself. The whole new larger engine turned out to be most cost effective except for resealing the old one myself. My problem was needing the mower so couldn't risk running into the inevitable parts problems if doing it myself. Pulling the old engine and installing the new one only took a couple of hours as it was a direct bolt in replacement. The new one fired right up and runs great. One thing I didn't expect is an automatic choke. I just removed the old choke cable. Now I am resealing my old engine as I'm not under pressure. I'll have it as a spare should it be needed.
R**S
Check the size of the verticle drive shaft you need and have a little help lifting onto the frame.
I purchased this one year ago and use it a few times a week for our stable animal clean ups and cutting grass. The installation went in fine with a little help from my Grandson to lift it onto the frame of my GD LA120 which I have had for 17. I recently replaced all the wheels, tires, belts, blades and steering mechanism, so I decided to go for this upgrade instead of buying a new tractor. My original BS 21hp gave me 860 hours of life before freezing up and giving up the ghost. I was very careful in ordering as I wanted to make sure I had the correct shaft size and everything would fit. The fuel line needed to be extended, other than that I don't recall having an issue with the installation. I have about 40 hours on it in AZ dry heat so very happy since it saved me about $2k if I bought new.
R**Y
Great purchase
I purchased this briggs and stratton 25hp engine to replace my original 24hp for my 2021 model John Deere S180 Lawn tractor. Easy swap plug and play.
J**D
I want to know what warranty it has
Bought this engine March last year a have 10 hrs on it. Parked the mower and week later it started smoking and has on power. Try to kick on the mower deck and it stalls out. Put new plugs because the old one was oily. Now it’s got a blown head gasket. Not happy with it.
C**T
Briggs
The engine was perfect. Started on first crank and ran perfect
Trustpilot
3 days ago
2 weeks ago