Model#: BGSN121S02-2025-F1

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Briggs & Stratton 121S02-2025-F1 190cc Professional Series Engine with 25mm Tapped 3/8 - 24 2WK & Keyway Crankshaft (CARB)

  • Briggs & Stratton 121S02-2025-F1 190cc Professional Series Engine with 25mm Tapped 3/8 - 24 2WK & Keyway Crankshaft (CARB)
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The Professional Series line of engines from Briggs & Stratton bring true performance and dependability to the table. Designed to run cooler, quieter and longer, these engines are built to last.
  • Dura-Bore cast iron cylinder sleeve for extended life
  • Ready Start provides easy no priming and no choke starting
  • Large rewind starter reduces pulling force for easier start ups
  • Maintenance-free Magnetron electronic ignition for quick and dependable start ups
  • Mechanical torque control provides additional engine power
  • Composite camshaft offers quieter operation
  • Commercial grade air cleaner with dual seals helps extend engine life
  • Large tube-outlet muffler reduces noise output
  • Overhead valve design (OHV) delivers cooler operation and longer valve life
  • Certified CARB Tier 3 and meets EPA 2012 Phase 3 standards
  • 190cc Professional Series Engine w/ 25mm Tapped 3/8-24 2WK & Keyway Crankshaft - 121S02-2025-F1


Series: Professional
Carburetor: Float-Feed
Controls: Remote, Manual Friction
Cooling System: Air
Crankshaft Diameter: 25mm
Crankshaft Length (Sump Face to Crankshaft End): 3-5/32 in.
Crankshaft Model Number: 796468
Crankshaft Tapping Size: 3/8-in - 24
Crankshaft Type: 2WK & Keyway
Cylinder Bore: 2.69-in (68.3mm)
Cylinder Stroke Length: 2.04-in (51.8mm)
Engine Configuration: Vertical
Engine Displacement: 190cc
Engine Technology: OHV
Fuel Tank Capacity: 1.6 Qrt.
Fuel Type: Gas
Governor: Mechanical
Governor Max. Speed (RPM): 3,100
Lubrication System: Splash
Number of Cylinders: 1
Oil Capacity: 18 - 20 Oz.
Power Type: Gas
Recommended Use: Lawn Mowers, Riding Mowers, Tow-Behind Mowers
Starter: Recoil
Starter Position: 5
Torque: 8.7



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How do I order parts for this lawnmower
Vikki on Nov 22, 2015
BEST ANSWER: Please contact the manufacturer direct at 1-800-6838484 for assistance with parts.