Right replacement impeller (Sherwood 9000K), wont fit M35B

[Stucker]

Even though the Sherwood 9000K impeller looks identical to my current impeller, it won't go on the shaft? From everything I've read, this is the right size for a 2003 era M35B. Has anyone else had this experience?  Do they ever screw up the sizing and put out bad products?

[KWKloeber]

Scott

A burr on the shaft or impeller?
The G908 uses the same impeller as similar SWs.

Yes they do screw up. They made a (so-called) "marine" pump out of iron.
Might think about making the switch to a real marine (bronze) pump?