--- product_id: 94944745 title: "44S977-0033-G1 25 GHP Vertical Shaft Engine, Black" price: "AR$5344287" currency: ARS in_stock: true reviews_count: 8 url: https://www.desertcart.com.ar/products/94944745-44s977-0033-g1-25-ghp-vertical-shaft-engine-black store_origin: AR region: Argentina --- # 16A alternator for consistent power 12V electric start for effortless ignition Dura-Bore cast iron cylinder for durability 44S977-0033-G1 25 GHP Vertical Shaft Engine, Black **Price:** AR$5344287 **Availability:** ✅ In Stock ## Summary > ⚡ Power up your ride with pro-level reliability! ## Quick Answers - **What is this?** 44S977-0033-G1 25 GHP Vertical Shaft Engine, Black - **How much does it cost?** AR$5344287 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/94944745-44s977-0033-g1-25-ghp-vertical-shaft-engine-black) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **16 Amp Alternator:** Keeps your battery charged and accessories powered during operation - • **Float Feed Carburetor:** Ensures smooth, reliable starts and consistent engine performance - • **Powerful 25 Gross HP V-Twin:** Unleash professional-grade performance for your lawn mower or tractor - • **Effortless 12V Electric Start:** Get going instantly with reliable push-button ignition - • **Robust Dura-Bore Cast Iron Sleeve:** Engineered for long-lasting durability and superior wear resistance ## Overview The BRIGGS & STRATTON 44S977-0033-G1 is a 724cc, 25 gross HP vertical shaft V-Twin engine featuring a durable Dura-Bore cast iron cylinder sleeve, a 12V electric start with a 16 amp alternator, and a float feed carburetor. Designed for riding lawn mowers and tractors, it delivers dependable, efficient power with advanced OHV technology for professional-grade performance. ## 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. Review: 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. Review: 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 ## 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 ## Technical Specifications | Specification | Value | |---------------|-------| | Best Sellers Rank | #157,177 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1,360 in Agricultural Machinery Spare & Replacement Parts | | Customer Reviews | 4.5 out of 5 stars 145 Reviews | ## Images ![44S977-0033-G1 25 GHP Vertical Shaft Engine, Black - Image 1](https://m.media-amazon.com/images/I/81nUMaHczfL.jpg) ## Questions & Answers **Q: Will this work on a 60” cut Montana zero turn?** A: I don't know bout that brand. I got all my specs from my BiG Dog mower engine. And it was an exact replacement engine .it's running good. U need all your specs from you engine your replacing. And the diameter of your engine shaft that the electric clutch slides on. **Q: Will this replace a briggs & stratton 44s777-0016-g1 on husqvarna 46?** A: Yes I have replaced several on huskvarna **Q: Are the mounting holes the same as a B&S440000 shaft diameter and length seems to be the same no pics of bottom side of motor to reference, thank you.** A: Ok **Q: is the mounting holes the same as a kai kawasaki** A: Mounting holes should be a standard fit but you will need to tap the holes in the Briggs engine. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect fit. *by M***D on August 19, 2025* 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. ### ⭐⭐⭐⭐⭐ Bolted right up to my 7 yr old garden tractor *by R***Y on June 4, 2020* 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 ### ⭐⭐⭐⭐⭐ No muffler or starter solenoid *by G***S on June 20, 2022* This engine was mishandled in shipment, the carton was damaged, all of the oil was drained and all over the box, evidently it had turned upside down during shipment. The plastic screen bolted to the flywheel was damage but seemed to have no effect on the engine. None of this was evident until I opened the container. I installed this engine (44S977-0033-G1 25HP) on an old 48" Scag replacing a very tired 20hp Kohler. The Briggs engine had the same mounting bolt pattern as the Kohler. The crank shaft dimensions were close enough for my pulleys and clutch. This Briggs engine come with electric start but has no solenoid also no muffler, I ordered a Swisher muffler #14391, came with gaskets (170 bucks), fit was good. This was not my first engine of choice but comparing cost, availability, it will do the job. It made this tired old machine like new and it is a beast. Very satisfied with the overall performance. ## Frequently Bought Together - BRIGGS & STRATTON 44S977-0033-G1 25 GHP Vertical Shaft Engine, Black - Briggs & Stratton 690970 Exhaust Gasket, Pack of 2 - 14391- Swisher Replacement Briggs & Stratton V-Twin Muffler --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.ar/products/94944745-44s977-0033-g1-25-ghp-vertical-shaft-engine-black](https://www.desertcart.com.ar/products/94944745-44s977-0033-g1-25-ghp-vertical-shaft-engine-black) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-09-04*