Will add, make sure you are not leaking water at your blue plastic drain plugs as the O-rings might be missing on the blue plastic drain plugs. Also I have seen people strip the threads on the blue plastic water drain plugs that cause a leak. Anyways maybe or hopefully a simple fix for you but who knows.

Currently you can buy the fittings to your actuator(s) They are your grey & orange fittings that can be 90's or straight - you can buy either. You can buy the blue plastic drain plugs and the O-rings that go with them for the water drains manually. You can buy the green and grey hoses that connects to your actuators fittings (90's or straight fittings) Next you can buy the actuator assembly water drains starboard and port - cost is 301 for starboard and 300 for port retail.

I would see if you can figure out what actually and where your leak is coming from as hopefully the fittings and or blue plastic drain plugs & O-rings could fix your leak instead of buying the actuator(s). Also with the starboard actuator it will be determine by engine serial #. just in case that's what you need to buy. I hate to be a broken record but engine serial # dictates parts, installs and service procedures on all OEM factory marine engines in stock apps.

I can give you any part #'s if needed but will need your engine serial # for the correct ones if you need actuators and or fittings and what type of fittings 90's or straight.

Thanks for the replies. The cold fuel cooler makes it really difficult to see the actuator. The blue plastic drain plugs are new and I confirmed they are not cross threaded. I back flushed yesterday day and noticed no debris. The manifolds and elbows look good. I'm going to put them back together and order a water circulating pump and a T so I can run it at my house. The harden marine seawater pump is brand new. The serial # is 0w064103 which should be the 496 MAG HO 425 hp.

Ok you have the first Gen for the starboard actuator water drain assembly. Merc part # is 863716A2 and retails for 301 and the port actuator is the same through out Merc part 863717A2 just in case and the price retail is close to 300 bucks.
I had to reword my post above about the hoses as they will not cause a water leak. I was posting the parts that anyone can still buy as individual parts if needed.

X100 !!! I have found 2 of these in fresh water boats !

Pretty expensive! I'll do some checking first. Since the Hardin pump was just installed I'm going to check it for leaks .
Thanks!

Can the actuator springs be replaced or ordered? Read some other posts that said the springs can get soft. I have two days to try and figure this out.

Just pull the actuator assembly out and replace it with a piece of 1 &1/4 pipe for the time being. It will be fine. (If I remember correctly, it's 1 1/4 OD pipe.)
One of mine went bad before I bought my boat, and original owner lived in Arizona; no need to winterize so he just pulled the actuator and stuck a pipe in there. It worked great for months.

We did the same on another 496HO when we were on a trip through the Keys a few winters back. $10 taxi ride to the hardware store; 2 new hose clamps, and the boat made it home no problem.