This kit will allow you to flush the engine while it is running, therefore offering a more complete flush of the raw water cooled components. Fits the follopwing engines with 1.25 inch (32 mm) I.D. inlet water hose: MerCruiser Marine 135 & 150 (6.7L) diesel engines with Bravo drives MerCruiser Inboard 135 & 150 (6.7L) diesel engines with Bravo drives Note: Mounting bracket in kit will need to be REMOTE MOUNTED.