International Harvester Model IHJ4 magneto serial #J4079632, flange mount 4 cylinder CW rotation. This is a rare hard to find magneto because it is only used on the Int Cub tractor. All the other lettered series Int tractors from the Int A to the W9 use the common Int H4 magneto. Bench tested and had an excellent spark at impulse speed and all speeds. Impulse worked just as it should. If you have any questions or would like some advice contact me. Research your mags application and specs so that you are confident that this is the correct mag for your application.