Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
BRIGGS & STRATTON 44S977-0032-G1 Professional Series 25 hp - Briggs & Stratton Engines
BRIGGSBriggs & Stratton Engines

BRIGGS & STRATTON 44S977-0032-G1 Professional Series 25 hp

The BRIGGS & STRATTON Professional Series™ Gasoline Engine (MPN 44S977-0032-G1) is a 25 hp vertical-shaft engine with electric start. It features a 1 in shaft diameter and a 1/4" keyway. This engine is designed for…

SKU 3G-OTH-417283

Also listed as: 44S9770032G1 · 44S977 0032 G1

Brand
BRIGGS
Item
& STRATTON 44S977-0032-G1 Professional Series 25 hp
Category
Briggs & Stratton Engines
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

BRIGGS
Manufacturer Part Number
44S977-0032-G1
Type
Vertical, 1 in
Horsepower
25 hp

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

BRIGGS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BRIGGS & STRATTON Professional Series™ Gasoline Engine (MPN 44S977-0032-G1) is a 25 hp vertical-shaft engine with electric start. It features a 1 in shaft diameter and a 1/4" keyway. This engine is designed for industrial equipment applications requiring reliable gasoline power.

Frequently Asked Questions

What is the BRIGGS & STRATTON 44S977-0032-G1 engine used for?

The BRIGGS & STRATTON Professional Series™ 25 hp gasoline engine is used in industrial equipment such as generators, pumps, and commercial mowers. Its vertical shaft and electric start make it suitable for stationary or mobile applications requiring reliable gasoline power.

What are the specifications of the BRIGGS & STRATTON 44S977-0032-G1 engine?

This engine delivers 25 hp with a vertical shaft, electric start, a 1 in shaft diameter, and a 1/4" keyway. The manufacturer part number is 44S977-0032-G1. It is part of the Professional Series™ line from Briggs & Stratton.

Where to buy the BRIGGS & STRATTON 44S977-0032-G1 engine worldwide?

3G Electric supplies the BRIGGS & STRATTON 44S977-0032-G1 engine worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install the BRIGGS & STRATTON 44S977-0032-G1 engine?

Installation requires aligning the 1 in shaft with the equipment's coupling and securing the 1/4" keyway. Use the electric start wiring per the Briggs & Stratton manual. Ensure proper fuel and oil levels before first use.

Used in

Common applications for BRIGGS
Commercial turf management — Briggs & Stratton Commercial Turf Series 27 hp vertical shaft engine (SKU 20KC43) for zero-turn mowers
Pressure washing — Briggs & Stratton XR Professional Series 9.5 lb-ft horizontal shaft engine (SKU 55EP70) for high-pressure washers
Generator power — Briggs & Stratton Professional Series 19 hp vertical shaft electric start engine (SKU 875GX9) for standby generators
Lawn mowing — Briggs & Stratton 725Exi Series 7.25 lb-ft vertical shaft engine (SKU 52YX58) for walk-behind mowers
Garden tractor — Briggs & Stratton Intek Series 11.5 hp vertical shaft engine (SKU 875GY0) for lawn tractors
Industrial pump drive — Briggs & Stratton XR Professional Series 5.5 lb-ft horizontal shaft engine (SKU 12V872) for water pumps

BRIGGS Products

3G Electric supplies BRIGGS briggs & stratton engines. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Compatible alternatives & equivalents

Cross-referenced by specification & description
BRIGGS & STRATTON Gasoline Engine: Series Professional Series™, 25 hp Horsepower, Vertical, 1 1/8 in (MPN 44S977-0033-G1)
BRIGGS
BRIGGS & STRATTON Gasoline Engine: Series Professional Series™, 25 hp Horsepower, Vertical, 1 1/8 in (MPN 44S977-0033-G1)
BRIGGS & STRATTON Small Engine: Series Professional, 19 hp Horsepower, Vertical, 1 in, Electric (MPN 33S877-0019-G1)
BRIGGS
BRIGGS & STRATTON Small Engine: Series Professional, 19 hp Horsepower, Vertical, 1 in, Electric (MPN 33S877-0019-G1)
Vertical-shaft gasoline engine with electric start, delivering 5.5 lb-ft gross torque. Features a 1-inch diameter crankshaft drilled to 1" x 3-5/32". Designed for commercial turf maintenance equipment such as zero-turn mowers and wide-area walk-behind mowers
BRIGGS
Vertical-shaft gasoline engine with electric start, delivering 5.5 lb-ft gross torque. Features a 1-inch diameter crankshaft drilled to 1" x 3-5/32". Designed for commercial turf maintenance equipment such as zero-turn mowers and wide-area walk-behind mowers
BRIGGS & STRATTON Small Engine: Series Professional, 10 lb-ft Gross Torque, Vertical, 25 mm, Recoil (MPN 14D932-0110-F1)
BRIGGS
BRIGGS & STRATTON Small Engine: Series Professional, 10 lb-ft Gross Torque, Vertical, 25 mm, Recoil (MPN 14D932-0110-F1)
BRIGGS & STRATTON Gasoline Engine: Series Vanguard, 35 hp Horsepower, Horizontal, 1 1/8 in, Electric (MPN 613477-0268-J1)
BRIGGS
BRIGGS & STRATTON Gasoline Engine: Series Vanguard, 35 hp Horsepower, Horizontal, 1 1/8 in, Electric (MPN 613477-0268-J1)
BRIGGS & STRATTON Gasoline Engine: Series Commercial Turf Series, 27 hp Horsepower, Vertical (MPN 49T877-0049-Z1)
BRIGGS
BRIGGS & STRATTON Gasoline Engine: Series Commercial Turf Series, 27 hp Horsepower, Vertical (MPN 49T877-0049-Z1)

More from BRIGGS

View all BRIGGS parts →
This horizontal-shaft gasoline engine from the CR950 Series delivers 9.5 lb-ft gross torque. It features a recoil start and a 3/4 in keyed shaft with keyway. Commonly used to power pressure washers, generators, and small construction machinery
BRIGGS
This horizontal-shaft gasoline engine from the CR950 Series delivers 9.5 lb-ft gross torque. It features a recoil start and a 3/4 in keyed shaft with keyway. Commonly used to power pressure washers, generators, and small construction machinery
Gasoline engine with 14.5 lb-ft gross torque, recoil start, and 3/4 in shaft with tapped 3/8"-24 end. Suitable for outdoor power equipment such as commercial mowers, generators, and pressure washers
BRIGGS
Gasoline engine with 14.5 lb-ft gross torque, recoil start, and 3/4 in shaft with tapped 3/8"-24 end. Suitable for outdoor power equipment such as commercial mowers, generators, and pressure washers
Horizontal-shaft engine rated 16 hp with 1-inch shaft diameter and 3-inch shaft length. Features electric start and a drilled and tapped 3/8-24 shaft end. Suitable for powering industrial equipment such as generators, pumps, and construction machinery
BRIGGS
Horizontal-shaft engine rated 16 hp with 1-inch shaft diameter and 3-inch shaft length. Features electric start and a drilled and tapped 3/8-24 shaft end. Suitable for powering industrial equipment such as generators, pumps, and construction machinery
Horizontal-shaft gasoline engine delivering 9.5 lb-ft gross torque. Features recoil start and a 3/4 in keyed shaft. Suitable for powering pressure washers, generators, and construction machinery
BRIGGS
Horizontal-shaft gasoline engine delivering 9.5 lb-ft gross torque. Features recoil start and a 3/4 in keyed shaft. Suitable for powering pressure washers, generators, and construction machinery
This gasoline engine delivers 14.5 lb-ft gross torque with a recoil start and a 1 in keyed shaft (1/4 in keyway). Designed for heavy-duty outdoor power equipment such as commercial mowers, generators, and pressure washers
BRIGGS
This gasoline engine delivers 14.5 lb-ft gross torque with a recoil start and a 1 in keyed shaft (1/4 in keyway). Designed for heavy-duty outdoor power equipment such as commercial mowers, generators, and pressure washers
This 18 hp horizontal-shaft gasoline engine features an electric start and a 1-1/8 inch diameter shaft with a 1/4 inch keyway and 7/16-20 D&T. It is suited for powering industrial and commercial equipment such as generators, pumps, and construction machinery
BRIGGS
This 18 hp horizontal-shaft gasoline engine features an electric start and a 1-1/8 inch diameter shaft with a 1/4 inch keyway and 7/16-20 D&T. It is suited for powering industrial and commercial equipment such as generators, pumps, and construction machinery
This 13.5 hp horizontal-shaft gasoline engine is part of the XR Professional Series. It features both recoil and electric starting, with a 1-inch shaft diameter and a keyed 1/4-inch shaft. Suitable for use in pressure washers, generators, and construction equipment
BRIGGS
This 13.5 hp horizontal-shaft gasoline engine is part of the XR Professional Series. It features both recoil and electric starting, with a 1-inch shaft diameter and a keyed 1/4-inch shaft. Suitable for use in pressure washers, generators, and construction equipment
This 16 hp horizontal-shaft engine features a 1-inch shaft diameter and 4-inch shaft length. It includes electric start and a drilled and tapped 3/8-24 shaft end. Suitable for powering commercial-grade equipment such as zero-turn mowers, generators, pumps, and pressure washers
BRIGGS
This 16 hp horizontal-shaft engine features a 1-inch shaft diameter and 4-inch shaft length. It includes electric start and a drilled and tapped 3/8-24 shaft end. Suitable for powering commercial-grade equipment such as zero-turn mowers, generators, pumps, and pressure washers