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If there's one thing that causes more wrong-part orders than anything else, it's not knowing exactly which model and year you have. This is especially common with used skis, rental units, and older machines where decals have faded or been replaced. Here's how to find the definitive answer — no guessing required.
On virtually all personal watercraft, the HIN (Hull Identification Number) is stamped or molded into the hull on the rear starboard (right) side — usually at the top edge of the transom, just below the waterline when the ski is in the water. Look for a 12-character alphanumeric code.
On some models it's located under the rear storage compartment lid or on a metal plate affixed to the engine compartment. If you can't access the ski directly, check your title or registration documents — the HIN should appear there as well.
The HIN follows a standard US format: [MFR Code][Model Code][Year Digits]
The final two digits of the HIN encode the model year. For example, a HIN ending in D717 was manufactured in 2017. A HIN ending in L824 indicates 2024.
Note: the "model year" and the "manufacture year" can differ by up to one year, just like cars. A ski titled as a 2015 model may have been manufactured in late 2014.
Older Sea-Doos (pre-2003 era) were branded as Bombardier — you may see "Bombardier" on the hull or engine. They're Sea-Doos. When searching for parts, use the Sea-Doo brand and look for the year/model on the hull decal or title. "Bombardier" is simply the parent company name, not a different product line.
This is one of the most common ordering mistakes we see. The Yamaha VX family has four distinct models that look similar but have different seat dimensions and configurations:
A seat cover that fits a VX Cruiser will not fit a standard VX. Check your model exactly before ordering. Look on the front of the ski's hull for the model name decal, or check the engine compartment label.
Kawasaki model names are on the hull decal — look for "Ultra 250X," "STX-15F," "SX-R," etc. The engine number is stamped on the engine block and provides additional confirmation. For older Kawasaki models (pre-2000), the model code embedded in the HIN is your most reliable source.
Used skis are sometimes upgraded. A GTI 130 that had a previous owner upgrade to a GTI 155 pump will have a 155mm shaft on a chassis the HIN says is a 130. This matters significantly for impeller ordering. When in doubt, measure your pump's internal diameter or bring us a photo — we can often identify the pump configuration from photos of the pump and impeller.
This catches people all the time. Sea-Doo sells "rental pro" versions of their GTI line to commercial operators. These rental models often have:
If you bought a used ski and the previous owner mentions it came from a rental fleet, confirm the pump size before ordering parts. The HIN alone may not reveal this — you may need to measure the shaft spline diameter at the pump.
The fastest path to the right part: use the Year / Make / Model search on WatercraftSuperstore.com.
