The engine would be equipped with a carburetor.
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Briggs & Stratton Vertical OHV Engine, 724cc, 1 1/8in. x 4 19/64in. Shaft, Model# 44S977-0033-G1

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Shipping:
Factory shippedHeavy/large item. Lift gate service available.
Store Pickup:
Not available - online only
- Genuine 724cc Briggs & Stratton 2-cylinder engine with 1-1/8in. x 4-19/64in. shaft delivers a 25 HP rating for reliable power, Model# 44S977-0033-G1
- OHV design runs cooler and cleaner for long life and improved fuel economy
- Maintenance-free Magnetron electronic ignition with automatic choke control
- Dura-Bore™ cast iron cylinder sleeve provides improved oil control for extended engine life
- Designed for use with riding lawn mowers
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Description
Key Specs
Reviews
Q & A
Accessories
Warranty
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Product Summary
What's Included
- (1) Engine
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Features + Benefits
- Genuine 724cc Briggs & Stratton 2-cylinder engine with 1-1/8in. x 4-19/64in. shaft delivers a 25 HP rating for reliable power, Model# 44S977-0033-G1
- OHV design runs cooler and cleaner for long life and improved fuel economy
- Maintenance-free Magnetron electronic ignition with automatic choke control
- Dura-Bore™ cast iron cylinder sleeve provides improved oil control for extended engine life
- Designed for use with riding lawn mowers
- Full pressure lubrication system with oil filter continuously supplies oil to all internal parts
- Mechanical Governor system
- Buyer protection package provides 2-year limited consumer engine warranty; 1-year limited commercial warranty
- Not for sale in CA
Key Specs
| Attribute | Specification |
|---|---|
item# | 75017 |
Brand | Briggs & Stratton |
Manufacturer's Warranty | 24 months parts/24months labor |
Ship Weight | 151.0 LB |
Engine Displacement | 724 cc |
Engine Type | Professional Series OHV |
Shaft Diameter | 1-1/8 in |
Shaft Length | 4.29 in |
Fuel Type | Gasoline |
Start Type | Electric |
Shaft Keyway | 0.25 in |
Crankshaft | Vertical |
Cylinders (qty.) | 2 |
Cylinder Bore | Cast Iron |
Net Power Output | 25 HP |
Fuel Tank | No |
Oil Capacity | 2 qt |
Low Oil Shutdown | No |
Low Oil Alert | No |
Max. RPM | 3,400 |
| Attribute | Specification |
|---|---|
CARB Approved | No |
Shaft Rotation (From PTO Shaft Side) | Counter Clockwise |
Governor System | Mechanical |
Ignition System | Electronic |
Carburetor | Yes |
Lubrication System | Full Pressure |
Bearing Type | Ball |
Auto Compression Release | Yes |
Cooling System | Air |
Bore | 3.12 in |
Stroke | 2.89 in |
Air Cleaner Type | Single Element |
Choke Control | Automatic |
Throttle Control | Remote |
Fuel Filter | Yes |
Charging System Amps | 16 |
Muffler Included | No |
Product Weight | 87.0000 lb |
Dimensions L x W x H (in.) | 16.0 x 19.0 x 18.0 in |
Reviews
Questions & Answers
Questions
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· 3 months ago
Does it have a carburetor??
1 answer-
ProductExpert6· 3 months ago
Helpful?
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· a year ago
Does it include a new starter motor?
1 answer-
ProductExpert11· a year ago
The starter is included on the engine.
Helpful?
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· a year ago
Please give engine mounting bolt size(s)
1 answer-
ProductExpert6· a year ago
The mounting bolt size is not provided by Briggs & Stratton. It would have 4 mounting holes to mount the engine to the equipment. The four mounting holes are cast holes meaning they are not threaded from the factory. Equipment manufacturers will use either a through bolt with a nut or use a self-tapping bolt designed to go into the aluminum material. You would reuse the mounting bolts from the equipment, the previous engine was on.
Helpful?
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· a year ago
How to check oil
1 answer-
ProductExpert11· a year ago
Looking at the top of the engine, the dip stick is located to the front right of the engine. Remove the dip stick and wipe with a clean cloth. Install and tighten the dipstick. Remove the dipstick and check the oil level. The correct oil level is at the top of the full indicator. If the oil level is low, slowly add oil into the engine oil fill with a clean funnel. Be sure not to over fill. After adding the oil, wait one minute and recheck the oil level. Reinstall and tighten the dipstick.
Helpful?
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· 2 years ago
Is this a 6 pin ?
1 answer-
ProductExpert6· 2 years ago
The engine would be a 6 pin.
Helpful?
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· 2 years ago
Is this a 24 horse. powered engined?
1 answer-
ProductExpert13· 2 years ago
This engine is rated at 25 HP.
Helpful?
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· 2 years ago
Can a low oil sensor be installed in this engine? If so what us the part number?
1 answer-
ProductExpert12· 2 years ago
A low oil sensor is not available for this engine model.
Helpful?
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· 3 years ago
Were do I find the model number on my engine
1 answer-
ProductExpert6· 3 years ago
The model numbers on the engines can be in different places. Each engine may be different. They can be located on the valve cover, the blower housing of the cylinder block.
Helpful?
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· 3 years ago
Is the end of the shaft on this drilled and tapped to accept a bolt?
1 answer-
ProductExpert38· 3 years ago
The shaft for this is tapped and threaded, 7/16"-20.
Helpful?
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· 5 years ago
Where can you get a muffler for this engine>
1 answer-
ProductExpert7· 5 years ago
There are multiple muffler options based on how it is mounted. It is best to contact the manufacturer for a muffler.
Helpful?
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Accessories We Recommend
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Warranty
Manufacturer's Warranty
24 months parts/24months labor
Extend Your Warranty Coverage with a Northern Protection Plan (NPP)
Repair Plan — 1 Year
A Northern Protection Plan is available after adding the product to your shopping cart.
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Specifications
724 cc
163 cc
747 cc
725 cc
Professional Series OHV
Vertical OHV Gas
Vertical Gas
Vertical Gas
1-1/8 in
-
1-1/8 in
1 in
4.29 in
-
3.35 in
3.16 in
Gasoline
-
Gasoline
Natural Gas
Electric
Pull
Electric
Recoil
0.25 in
-
3.827 in
-
Vertical
-
Hardened
Hardened
2
-
2
2
Cast Iron
-
Cast Iron
Cast Iron
25 HP
-
25 HP
21 HP
No
-
-
-
2 qt
-
2 qt
2 qt
No
-
Yes
No
No
-
-
No
3,400
-
3,600
3,600
No
No
-
-
Counter Clockwise
-
Counter Clockwise
Counter Clockwise
Mechanical
-
Variable Speed
Mechanical
Electronic
-
Electronic
-
Yes
-
Smart Choke
Evap/carb
Full Pressure
-
Full Pressure
Pressure
Ball
-
Parent Material
Parent Material
Yes
-
-
-
Air
-
Air
Air
3.12 in
-
3.3 in
3.3 in
2.89 in
-
2.7 in
2.6 in
Single Element
-
Single Element
Single Element
Automatic
-
Remote
Remote
Remote
-
Remote
Remote
Yes
-
-
Yes
16
-
15
15
No
-
No
No
87.0000 lb
-
lb
92.0000 lb
16.0 x 19.0 x 18.0 in
-
20.5 x 16.2 x 19.9 in
18.8 x 17.5 x 17.0 in
-
-
55.3 ft-lbs.
40.7 ft-lbs.
-
-
3.356 in
-
-
-
9.1:1
9.1:1
-
-
7.656 in
10 in
-
-
5.736 in
10 in
-
-
7.656 in
10 in
-
-
-
2 qt
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