The Engine Serial Number is important for you to know in case you need to order replacement parts, or your Rescue Water Craft (Personal Water Craft PWC) is destroyed due to a mishap or lost due to theft.

The serial number is what the dealership will use to verify your craft and also to fulfill your warranty needs.


In the event of theft of the craft, investigating authorities will require two things from you:

1. Hull Identification Number (HIN)
2. Engine Serial Number (ESN)

In your log book write these two corresponding serials down.

Take photos of both of them and save to file.

The engine number can also be confirmed by the label on top of the engine itself.

Example: Kawasaki Ultra LX Jet Ski®


Write down your following:

1. Manufacturer of the craft
2. Model Number
3. H.I.N. Number
4. Engine Serial Number
5. Registration Number

Do this right away, don’t put it off, it will save you time in the future and allow your maintenance schedule to stay steady.

Posted: June 23, 2019

Content Creator of Rescue Water Craft and Personal Water Craft boating international education standards: Shawn Alladio is the world’s foremost authority and leading subject matter expert. She cares most about her community and the culture surrounding the safety of event service providers and Rescue Water Craft operators, working hard and dedicated towards protecting their reputation, distributing safety information and continuing to train these amazing individuals to the highest standards of care.


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Use at your own risk. Please take a qualified Rescue Water Craft training course and maintain proper records and respect all the PWC, RWC, PPE, and gear OEM manufacturer warning labels and cautions.

Posted in Maintenance.