The original 1981 Kawasaki Jet Ski. Wow. Lucky for you we have all the OEM Kawasaki Jet Ski parts your watercraft needs to keep it original. And running. Shop our Kawasaki Jet Ski part diagrams for your 1981 440/550 Jet Ski and find out how much money you can save. Need parts in a hurry? We can even expedite your order. If you have any questions call us or chat with an agent now. Our part techs can perform a vintage year Kawasaki Jet Ski parts lookup for you and have them shipped right to your door.