I have a' 75 Evinrude 6hp 6504r. The factory parts manual calls for an OMC #277181 impeller. Sierra part #18-3001 is supposed to interchange. I have ordered Sierra impeller from two different vendors (first time thought wrong part had been sent), both Sierra impeller inside diameters are apprx. .555". The inside diameter of the one from my motor is .441". The Sierra's are just too big for the driveshaft. Not sure what next step is. Any suggestions?
Thanks in advance for your input.
Thanks in advance for your input.