there are 6 bolts on the flywheel bolting it to the crank and 6 bolts bolting the pressure plate to the flywheel. The 4e is a 212mm clutch as well as the 3ete, the 5e has a 200mm clutch disc and 6 bolts but a different bolt pattern bolting it to the crankshaft. the 3ete can be used on a 5e as it has the same crank bolt pattern but the 4e clutch size, so you can use 4e clutches with 5e motors. hope that helped.