On Sat, 04 Apr 2009 21:02:46 -0500, RoyJ
wrote:
Bruce wrote:

This style pump head is meant to direct-mount onto a certain tapered
crankshaft tail normally found on gasoline engines - which you are NOT
going to find on regular electric motors. The pump impeller has the
female of the tapered shaft with the lockbolt, and the tolerances when
it's all bolted together is critical.

The OP listing clearly states "3/4 inch straight shaft with keyway"

O Rly?

I read the eBay listing referenced as a tapered shaft with an end
hole for a lock bolt. Sure you looked at the right page? They :do:
come both ways.

-- Bruce --