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Briggs & Stratton Engine 31R907-0007-G1 17.5 hp Intek

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31R907-0007-G1 Briggs & Stratton Engine, 17.5 hp, 500cc Intek, Free Shipping, No Tax, Crankshaft: 1 in. Dia x 3-5/32 in. Long, 1/4 in. keyway, tapped 7/16-20 in.

Replaces Old Briggs Model 31C707-0230-E1, 31C707-3026-G5, 31C707-3346-G1, 31C707-3346-G2, 31C707-3346-G5, 31C707-3346-G6, 31R707-0033-G1, 31R877-0036-B5, 31R907-0018-G1, 31R907-0053-G1 and many others. 

  • 12 volt electric starter
  • 9 amp charging  system
  • Muffler included
  • No Fuel Pump
  • Dura-Bore cast iron cylinder sleeve for extended life.
  • Advanced Debris Management System with our largest dual seal, cartridge-style air filter that provides maximum protection and extends engine life.
  • Float carburetor for consistent easy starting Overhead valve design (OHV) for cooler operation and longer valve life Mechanical Governor.
  • Consumer engine warranty 2 yrs.

500 CC
Bore 3.56 in. (90.50 mm)
Stroke 3.06 in. (77.80 mm)
Oil Capacity 48 fl. oz. (1.40 L)

Application Riding Lawn Mower
Air Cleaner Type Pleated Paper With Foam Pre-Cleaner
Application Walk-Behind Lawn Mower
Auto Compression Release Yes
Bearing Type (PTO Side) Plain
Throttle Control Remote
Single UPC 047282017531
Country of Origin US
Muffler Included Yes
Oil Capacity (oz.) 48
Oil Cooler No
Oil Filter No
Ship Weight (lbs.) 108.3
Start Type Electric
Ignition System Electronic
Governor System Mechanical
Limited Warranty 2 Years Consumer, 1 Year Commercial
Low Oil Alert No
Max. RPM 3300
Lubrication System Splash
Flywheel Brake No
Flywheel Type Heavy
Fuel Filter Yes
Fuel Pump No
Fuel Tank Included No
Fuel Type Gasoline
Crankshaft Rotation (From PTO Shaft Side) Counter Clockwise
Cylinder Bore Type Cast Iron Sleeve
Cylinders (qty.) 1
Engine Displacement 500cc
Engine Series PowerBuilt/ Intek
EPA/CARB Approval (California Air Resource Board) Yes
Cooling System Air
Crankshaft Straight
Crankshaft Diameter (in.) 1
Crankshaft End Tapped Size 7/16-20
Crankshaft Length (in.) 3-5/32
Crankshaft Output Vertical
Carbureted Yes
Bore x Stroke (in.) 3.56 x 3.06
Carburetor Float
Charging System 9 Amp
Choke Control Choke-A-Matic


Engine Specifications


Model Series 31R9
Power Lbs/Ft of Torque 17.5
Displacement (cc) 500
Oil Capacity (oz) 48
Valve Configuration OHV
Flywheel Torque (lbs/ft) 110
Governor Arm Torque (lbs/in) 40
Plug Gap (in) 0.03
Intake Valve (in) .003-.005
Exhaust Valve (in) .005-.007
Air Gap (in) .010-.014
Flywheel Puller Part 19203


Common Parts

594201 Filter-A/C Cartridge (Canister)
695666 Filter-Fuel (Includes Paper Element With A 30 Micron Rating)
691035 Filter-Fuel (Includes Paper Element With A 40 Micron Rating)
394358S Filter-Fuel (White, 75 Microns)
798576 Filter-Oil (Premium)(Orange)
696854 Filter-Oil (Premium)(Yellow)
492932S Filter-Oil (Standard)(Black)
797704 Filter-Pre Cleaner
796584 Gasket-Cylinder Head
796184 Kit-Carburetor Overhaul (Nikki)
593934 Motor-Starter
795997 Muffler
795998 Muffler
691043 Plug-Spark (EMS)
19203 Puller-Flywheel
  • Model: 31R907-0007-G1
  • UPC: 047282017531
  • Shipping Weight: 81lbs
  • Manufactured by: Briggs-Stratton

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