Mercury 3.9 impeller key part number

[platinumjason]

I have what I think is a 64 Mercury 3.9 (beginning serial # 169) I ordered a new impeller for it but lost the key while waiting. I am having a hard time figuring out what part number I need. Anyone have a way to look this up?

 

[oldman570]

Not sure your motor has the same key, but a search for part #~~29967 PIN at Crowley Marine shows that the pin is listed for a 1066 model motor.

 

[oldman570]

Not sure your motor has the same key, but a search for part #~~29967 PIN at Crowley Marine shows that the pin is listed for a 1966 model motor.