Briggs & Stratton Intek 540 cc 19.0 Gross HP Vertical Engine, 1 inch x 3-5/32 inch Crankshaft. 12V Electric Start with 9A Alternator, Oil Pump with Filter, Fuel Pump, and Muffler.

This engine replaces: 331977-0001-G1

• Crankshaft Diameter 1"

• Crankshaft Length 3.157"

• Crankshaft End Tapped Size 7/16-20

• Crankshaft Keyway Width 1/4"