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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
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Model: 31S977-0006-G1
$1,239.99

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In-Stock
Ships from Briggs & Stratton
Factory items ship direct from the manufacturer
Shipping times vary
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Product Description
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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
Cylinders
1
Cooling System
Air
Dry Weight
75 Lbs
CC
500 CCs
HP
17.5 HP
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 Filter
No
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
Weight
75 Pounds
Consumer Warranty
2 Years
Commercial Warranty
90 Days
Product Length
18.9 Inches
Product Width
16.2 Inches
Product Height
13 Inches
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
Cylinders
1
Cooling System
Air
Dry Weight
75 Lbs
CC
500 CCs
HP
17.5 HP
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 Filter
No
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
Weight
75 Pounds
Consumer Warranty
2 Years
Commercial Warranty
90 Days
Product Length
18.9 Inches
Product Width
16.2 Inches
Product Height
13 Inches
UPC
047282028339
Product Specs
+
Specifications
Engine
Engine Series
B&S Professional Series
Engine Style
Vertical
Engine Type
4-Cycle OHV
Cylinders
1
Cooling System
Air
Dry Weight
75 Lbs
CC
500 CCs
HP
17.5 HP
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 Filter
No
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
Weight
75 Pounds
Consumer Warranty
2 Years
Commercial Warranty
90 Days
Product Length
18.9 Inches
Product Width
16.2 Inches
Product Height
13 Inches
UPC
047282028339
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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 31S977-0006-G1
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