The ARC 6611-H28 Adjustable Steel Hub fits the Briggs Model 31 and Model 33 AVS Intek Engines’ crankshaft taper. 

The ARC 6611 Series Flywheels are a modular series of flywheels that allow you to change engine platforms by changing out the inner hub, ring gear, and coil hardware if needed. In other words, if you want to use your Intek Non-AVS or Vanguard V-Twin ARC 6611 Flywheel on your Intek AVS Single Cylinder Engine, rather than buying a brand new flywheel, buy this hub, and Intek Single ring gear to convert it.