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Item#: 9SIA10Z0DA1143

121S02-2025-F1 190cc Professional Series Engine w/ 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: 5:30
  • Torque: 8.7

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