Sea-Doo 300 AJS-135R 19 PSI Supercharger Impeller Kit

Delivering an amazing 19 PSI of boost in the 8800 RPM range, our AJS-135R Sea-Doo 300 drop-in impeller will take your Sea-Doo to the next level. No other drop-in impeller makes more boost than the 135R.

If you’re after the most boost without modifying the housing, this supercharger is for you!

Precision machined from aerospace grade 7075 aluminum alloy, perfectly balanced and anodized in black, the quality of AJS-135R is second to none. The complete kit comes with housing spacer and longer dowel pins for proper housing alignment.

Installation Notes

The impeller is meant to fit tight on the shaft and may require heating in order to fit the tight clearances.  Using a heat gun, do not use open flame torch, heat the impeller around the shaft opening for 30-60 seconds and slide it down the shaft.

Slip: Target slip is 19 ft-lb, since this is a large boost wheel it may be required to verify, and reset, the slip after first couple heat cycles.

Boost measurements are relative and will vary based on engine configuration, elevation and atmospheric conditions at the time of measurement.