If anybody has one prob going to be one of you guys b&m 250 old style half spline blower pulley for the marine 16 rib not going to be real picky on size I have a selection of lower pulleys will entertain later style full spline snout and or ahaft if need be or grenaded case with parts I need .

you mean keyway style pulley?

This version is pre keyway the section of the pulley that goes up under the snout seal is not splined

I believe I have what you need 573 346 5250 Or 573 280 9784 jim