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Model#: BGSN12S402-0028-F8

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Briggs & Stratton 12S402-0028-F8 205cc 900 Series Engine with Tapered Tapped 3/8 - 24 Crankshaft (CARB)

  • Briggs & Stratton 12S402-0028-F8 205cc 900 Series Engine with Tapered Tapped 3/8 - 24 Crankshaft (CARB)
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Featuring rugged design and dependable performance, Briggs & Stratton's 900 Series engines offer reliable power while running cooler, smoother and longer with the integrated Overhead Valve technology.
  • Dura-Bore cast iron cylinder sleeve withstands wear and abuse to provide improved oil control and extended life
  • Float-feed one start carburetor delivers consistent one-pull start ups
  • Magnetron electronic ignition delivers quick and dependable starts with no maintenance required
  • Overhead Valve Design (OHV) runs cooler and cleaner to deliver more power, longer life and improved fuel economy
  • Model Specific Features: Manual choke and remote stop switch
  • 205cc 900 Series Engine w/ Tapered Tapped 3/8-24 Crankshaft - 12S402-0028-F8


Series: 900
Length: 10.4 in.
Width: 15.4 in.
Height: 15.2 in.
Carburetor: Float-Feed
Controls: Remote, Adjustable, Manual Friction
Cooling System: Air
Crankshaft Model Number: 699452
Crankshaft Tapping Size: 3/8-in - 24
Crankshaft Type: Tapered
Cylinder Bore: 2.69-in (68.3mm)
Cylinder Stroke Length: 2.2-in (55.9mm)
Engine Configuration: Horizontal
Engine Displacement: 205cc
Engine Technology: OHV
Fuel Tank Capacity: 3 Qrt.
Fuel Type: Gas
Governor: Mechanical
Governor Max. Speed (RPM): 3,600
Lubrication System: Splash
Number of Cylinders: 1
Oil Capacity: 18 - 20 Oz.
Power Type: Gas
Recommended Use: Compressors, Pressure Washers, Chipper/Shredders
Shipping Weight: 40.95 lbs.
Starter: Recoil
Torque: 9



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On the shaft side of the engine, are there tapped holes to connect the impeller housing to the engine and what is the spacing between the bolt holes? Is the shaft 1 inch tappered down to 9/10 of an inch?

Norman on Mar 2, 2016
BEST ANSWER: For assistance with this question, please contact Briggs & Strattons technical support at 800-683-8484
How much oil goes in a Briggs and Stratton 12s402
kelly on Oct 26, 2014
BEST ANSWER: This motor takes 18 - 20 Oz of oil.