SEI Marine ProductsMercruiser Alpha One Shift Cable Tool 91-12037

Worked as described

The media could not be loaded.  Worked as it should. The nut welded to the back is exactly 3/4 of an inch. Overall length is close to 3 inches. If you're shift cable is longer just add a longer socket.

As many note, it's just a long 9/16" socket with a nut on the end, but there's little to no room to work where the fitting is. I don't like to buy single use tools but would buy one again. It was that helpful.

As advertised. Shipped fast. But I found out after opening the package this is nothing more than a deep 9/16" "sparkplug" socket you can get about anywhere for $6. Just remove the rubber piece inside the sparkplug socket and the shift cable extension fits right thru. SEI makes a great sterndrive for a really great price. I guess they need to charge extra on tools to make up for it (?)

I have a multitude o 3/8 and 1/2 deep well sockets. None were quite long enough. I went to three auto stores. None were long enough. The problem is that that when you turn the brass fitting, you are turning the entire cable sheath up to top of boat. That is a lot windup. if you release the fitting it unwinds. The stem on the cable fitting has to stick up inside the hole of your 5/8 socket. This tool is simply a 3/8 drive deep well socket with a 5/8 wrench size nut welded to the top.