Elite 5 cap for non-used port?

Awesome advice, thanks.

The little grey cap came in a package of 2. Found it in the pull out drawers in the aisle that has all of the machine screws, bolts, nuts, washers, etc.

Thanks salty

Was it the Elite 4 that you have killed 3 of already?  I did some product testing on an Elite 4 over the weekend.  I could see a possability of leakage.  I submerged mine quite a few times to test it.  Even towed it behind the kayak a bit.  Couldn't get the SD slot to leak.

Mine is the Mark 4, but they are pretty similar. I have it on the ram wedge mount on my revo and I guess it gets a lot of water coming over the front hitting it in the back. So far with these changes I am going on 2 months without issue!

If you can't find them let me know.  I have plenty.

I picked up a second Lowrance Elite 4, and took it out for a spin at the OC Tourney last month but forgot to fill the secondary port with the DL Grease like I had on my first unit.  When I got home I noticed the corrosion in the secondary port, and a whole pin has disentigrated.  I'll likely never use that port, but it's toast now.  Good thing I bought it at WM and got the extended warranty    Btw, i'd still fill it with grease even if your going to cap it like Jim did or it may just corrode 'out of sight' with a cap on it. 

The little grey cap came in a package of 2. Found it in the pull out drawers in the aisle that has all of the machine screws, bolts, nuts, washers, etc.

Spent 30 minutes in home depot asked 3 employees and couldn't find the grey caps or anything else to fit. I'll check the auto part store tomorrow.

pm me your address & I'll just mail you one in an envelope.