Briggs & Stratton Professional Series 500cc 17.5 Gross HP Electric Start Vertical Engine, 1" x 3-5/32" Crankshaft, Tapped 7/16"-20, 1/4" Straight Keyway

Briggs & Stratton Professional Series 500cc 17.5 Gross HP Electric Start Vertical Engine, 1" x 3-5/32" Crankshaft, Tapped 7/16"-20, 1/4" Straight Keyway
Model: 31S977-0006-G1
$1,219.99
Factory-Direct
Ships in 2-5 Business Days
Factory items ship direct from the manufacturer.
Shipping times vary.
Free Shipping & 
Tax-Free (Except IL)
Free ShippingNo Sales Tax* (Except IL)$1,219.99Buy Now
No Sales Tax* (Except IL)$1,219.99Visit Site
Factory-Direct
Ships in 2-5 Business Days
Enter your ZIP Code below to see an estimated arrival time of delivery to your home or business.
*We currently CANNOT ship this product to Alaska, Hawaii or any destination outside of the United States
Free Shipping
Free Shipping
  • Product Description
  • Reviews
  • Product Q&A
  • How-To Articles
  • Manuals
Product Description
+

Features
Features
  • Model# 31S977-0006-G1 - 1" x 3-5/32" Crankshaft, Tapped 7/16"-20, 1/4" Straight Keyway
  • For use on lawn/garden tractors and ZTR
  • Briggs & Stratton Professional Series Single Cylinder Air-Cooled 4-Cycle Gas Engine
  • Produces 17.5 gross HP* - Power levels are stated gross torque per SAE J1995
  • Overhead Valve (OHV) Technology
  • More power, less fuel-use & lower emmisions
  • Runs cooler for longer engine and valve life
  • Dura-Bore Engineering
  • Cast iron cylinder sleeve
  • Keeps the engine running cooler for maximum productivity
  • Mechanical Compression Release
  • Easy, reliable starting
  • Full-Pressure Lubrication w/ Spin-On Oil Filter
  • Assures controlled lubrication for extended component life
  • 12-Volt Electric Start To Save Your Shoulder
  • Includes 9-amp alternator
  • High Capacity Dual-Clean Premium Air Filter
  • Cartridge design w/ foam pre-cleaner keep more debris out of the engine
  • Float-Feed Carburetor & Mechanical Governor
  • Allows for fast fuel delivery for reliable starting and operation
  • Increases throttle response to maximize usable power for higher torque applications
  • Includes Pulse-Type Fuel Pump (Gas Tank Not Included)
  • 2-Year Consumer & 90-Day Commercial Warranty
Specifications
Engine
Engine Series
B&S Professional Series
Engine Style
Vertical
Engine Type
4-Cycle OHV
Cooling System
Air
Dry Weight
75 Lbs
CC
500 CCs
Cylinder Bore Type
Cast Iron
Bore
3.56 Inches
Stroke
3.06 Inches
Systems
Charging System
9 Amps
Starting System
12-Volt Key Start
Ignition System
Electronic Spark
Lubrication
Lubrication
Pressurized
Oil Capacity
48 oz
Intake/Exhaust
Fuel
Gas
Carburetor
Float
Muffler
Not Included
Air Cleaner
Mult-Stage Canister
Fuel Tank
Not Included
Crankshaft
Crankshaft Rotation Direction
Counterclockwise
Shaft Size
1 x 3-5/32 Inch
Crankshaft Type
Straight
Crankshaft Diameter
1"
Crankshaft Length
3-5/32"
Crankshaft End Tapped Size
7/16"-20
Crankshaft Keyway Width
1/4 Inch
Overview
Made in USA
Yes
Weight
75 Pounds
Product Length
18.921 Inches
Product Width
16.205 Inches
Product Height
13.052 Inches
Consumer Warranty
2 Years
Commercial Warranty
90 Days
UPC
047282028339

Features
Features
  • Model# 31S977-0006-G1 - 1" x 3-5/32" Crankshaft, Tapped 7/16"-20, 1/4" Straight Keyway
  • For use on lawn/garden tractors and ZTR
  • Briggs & Stratton Professional Series Single Cylinder Air-Cooled 4-Cycle Gas Engine
  • Produces 17.5 gross HP* - Power levels are stated gross torque per SAE J1995
  • Overhead Valve (OHV) Technology
  • More power, less fuel-use & lower emmisions
  • Runs cooler for longer engine and valve life
  • Dura-Bore Engineering
  • Cast iron cylinder sleeve
  • Keeps the engine running cooler for maximum productivity
  • Mechanical Compression Release
  • Easy, reliable starting
  • Full-Pressure Lubrication w/ Spin-On Oil Filter
  • Assures controlled lubrication for extended component life
  • 12-Volt Electric Start To Save Your Shoulder
  • Includes 9-amp alternator
  • High Capacity Dual-Clean Premium Air Filter
  • Cartridge design w/ foam pre-cleaner keep more debris out of the engine
  • Float-Feed Carburetor & Mechanical Governor
  • Allows for fast fuel delivery for reliable starting and operation
  • Increases throttle response to maximize usable power for higher torque applications
  • Includes Pulse-Type Fuel Pump (Gas Tank Not Included)
  • 2-Year Consumer & 90-Day Commercial Warranty
Specifications
Engine
Engine Series
B&S Professional Series
Engine Style
Vertical
Engine Type
4-Cycle OHV
Cooling System
Air
Dry Weight
75 Lbs
CC
500 CCs
Cylinder Bore Type
Cast Iron
Bore
3.56 Inches
Stroke
3.06 Inches
Systems
Charging System
9 Amps
Starting System
12-Volt Key Start
Ignition System
Electronic Spark
Lubrication
Lubrication
Pressurized
Oil Capacity
48 oz
Intake/Exhaust
Fuel
Gas
Carburetor
Float
Muffler
Not Included
Air Cleaner
Mult-Stage Canister
Fuel Tank
Not Included
Crankshaft
Crankshaft Rotation Direction
Counterclockwise
Shaft Size
1 x 3-5/32 Inch
Crankshaft Type
Straight
Crankshaft Diameter
1"
Crankshaft Length
3-5/32"
Crankshaft End Tapped Size
7/16"-20
Crankshaft Keyway Width
1/4 Inch
Overview
Made in USA
Yes
Weight
75 Pounds
Product Length
18.921 Inches
Product Width
16.205 Inches
Product Height
13.052 Inches
Consumer Warranty
2 Years
Commercial Warranty
90 Days
UPC
047282028339
Product Specs
+
Specifications
Engine
Engine Series
B&S Professional Series
Engine Style
Vertical
Engine Type
4-Cycle OHV
Cooling System
Air
Dry Weight
75 Lbs
CC
500 CCs
Cylinder Bore Type
Cast Iron
Bore
3.56 Inches
Stroke
3.06 Inches
Systems
Charging System
9 Amps
Starting System
12-Volt Key Start
Ignition System
Electronic Spark
Lubrication
Lubrication
Pressurized
Oil Capacity
48 oz
Intake/Exhaust
Fuel
Gas
Carburetor
Float
Muffler
Not Included
Air Cleaner
Mult-Stage Canister
Fuel Tank
Not Included
Crankshaft
Crankshaft Rotation Direction
Counterclockwise
Shaft Size
1 x 3-5/32 Inch
Crankshaft Type
Straight
Crankshaft Diameter
1"
Crankshaft Length
3-5/32"
Crankshaft End Tapped Size
7/16"-20
Crankshaft Keyway Width
1/4 Inch
Overview
Made in USA
Yes
Weight
75 Pounds
Product Length
18.921 Inches
Product Width
16.205 Inches
Product Height
13.052 Inches
Consumer Warranty
2 Years
Commercial Warranty
90 Days
UPC
047282028339
Reviews
+
This product has no reviews.
Be the first to voice your opinion on this Briggs & Stratton product.
Product Q&A
+
Be the first to ask a question.
How-To Articles
+
Manuals
+
 
 
×
Briggs & Stratton Professional Series 500cc 17.5 Gross HP Electric Start Vertical Engine, 1" x 3-5/32" Crankshaft, Tapped 7/16"-20, 1/4" Straight Keyway
+
Reset View

Visit Power Equipment Direct on Facebook
View the Power Equipment Direct Twitter Profile Page
Follow Power Equipment Direct on Pinterest
View Power Equipment Direct YouTube Channel
View Power Equipment Direct Tumbler
View Power Equipment Direct LinkedIn Company Profile