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Briggs & Stratton

BRIGGS & STRATTON 44S977-0033-G1 25 GHP Vertical Shaft Engine, Black

  • Based on 145 reviews
Condition: New
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Availability: Only 2 left in stock, order soon!
Fulfilled by equipatron
Arrives Sep 20 – Sep 22
Order within 7 hours and 25 minutes
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Features

  • electric start with 16 amp alternator dura-bore cast iron cylinder sleevefloat feed carburetor for reliable starting and operation
  • Overhead Valve (OHV) Technology
  • Dura-Bore Cast Iron Cylinder Sleeve
  • Float Feed Carburetor for reliable starting and operation

Description

Briggs & stratton vertical professional series engine is 724cc & 25. 0 gross HP. This Briggs & Stratton V-Twin has a 1-1/8" X 4-D/16" Crankshaft & a 12V electric start with 16 amp alternator. Briggs & Stratton professional series engines deliver the reliable, efficient power needed for riding lawn mowers & tractors.

Product Dimensions: 18.81 x 17.9 x 14.96 inches


Item Weight: 2 pounds


Manufacturer: Briggs and Stratton


Item model number: 44S977-0033-G1


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 20 – Sep 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • Went awesome
Direct replacement, installed and running great. Thanks
Reviewed in the United States on August 10, 2025 by Jodie L. Carson
    • Fast shipping!
The seller shipped this within a few hours of my ordering! I received the engine one day early. The engine (BRIGGS & STRATTON 44S977-0033-G1 25 GHP) is in perfect shape. I used ChatGPT and Google AI to verify this as a replacement, and that worked well. Really pleased with the shipping speed and you can't go wrong with Briggs (usually ;-). ... show more
Reviewed in the United States on June 18, 2026 by Guy
    • Good value
Good value
Reviewed in the United States on June 21, 2026 by Ted C
    • Briggs engine
Received a day early. Package was in great shape. Delivery was made by FedEx. No oil spills, or visible damage. Will install in the next day or two for an update. Looking at the quality of the engine I can tell its solid.
Reviewed in the United States on April 1, 2026 by N.
    • Motor issues
I’m curious about buying motors I purchased this one and have been having nothing but problems with it since I bought it I asked for help and for some reason nobody answered me back and I need help please
Reviewed in the United States on June 19, 2026 by Ed van voorhis jr
    • Bolted right up to my 7 yr old garden tractor
Easy install only thing different is now my throttle control works reverse of what it was before. No fault of the sender put maybe a BIG "THIS SIDE UP" on the box and all the oil wouldn't leak out and all over the motor. Also by being turned upside down the oil dip stick came out and was bent, I straightened it, no biggie there but by the cap being off Styrofoam got in to the oil fill tube, I flushed engine with a quart of oil and a few pieces came out. I'll do a oil change at 1 hour and again at the 5 hour break in period. If I wasn't in need of the motor I'd of sent it back. Also and again no fault of the sender but this order kept having delivery extended a day, 3 times! I finally went and picked it up myself ... show more
Reviewed in the United States on June 4, 2020 by R. Murphy
    • 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.
Reviewed in the United States on August 19, 2025 by Mike Eastwood
    • Works great
Fired right up after install and works great!
Reviewed in the United States on January 21, 2026 by Brent Phillips

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