Amazon.com: Briggs and Stratton 15T212-0160-F8 1150 Series Intek PowerBuilt 11.50 Gross Torque Engine with A 1-Inch Diameter by 2-7/8-Inch Length Crankshaft, Keyway, and 3/8-24 Tapped : Patio, Lawn & Garden
Amazon.com: Briggs and Stratton 19N132-0035-F1 306cc 14.50 Gross Torque Crankshaft, 1" x 3-31/64" : Patio, Lawn & Garden