ProWatercraft’s extended nozzle is a blend of old technology with a modern look for your Kawasaki 440 / 550 stand up jet ski.
The nozzle has been lengthened 1″ to offer better straight line hook-up and drive and tighter turning ratios. This nozzle is a couple millimeters smaller (ID) than the stock 85mm (ID). Generally the size of the thrust outlet should be 4-6mm smaller than the steering nozzle. On the 550 (depending on the year), the thrust nozzle is 65mm and the stock steering nozzle is 85mm, a 20mm difference! ProWatercraft made their nozzle 2mm smaller, but with it being 25mm ( approx 1″) longer, this will help the rider feel the steering without having any over sensitive feelings in the steering.