You cannot interchange brands without some things being different such as wiring, muffler, air cleaner, and possibly other things. One of the Kawasaki engine numbers was fh721v-as18, which is no longer available. One of the Kohler Engine numbers was CV25S-69528 which is replaced by CV730-0007, which has now been superseded to the CV730-3141. These engines have a 1" x 4" Shaft. If the air cleaner interferes with installation, you would need to use the air cleaner off of the original engine. You will need to verify your engine's Model and Spec numbers as well as shaft size prior to ordering.
