Adapter bolts to the back of a Predator 670 flywheel with the hardware provided and allows Kohler drives to bolt on. It has a raised 1-7/8 pilot with (4) 5/16-18 threaded holes on a 3" pattern. This will work when replacing a Kohler Command with a Predator 670 V-Twin. The Command uses metric 8mm bolts. This will also work when replacing the older Kohler K-Series engines as well. Those flywheels are tapped 3/8-16 so you will use smaller bolts to hold on your adapter. This adapter adds about 3/4" to the rear of the Predator flywheel.