Blue Drain Plugs
 

Hello Guys, I have a 2009 Sea Ray SLX 250 with a Mercury 496 Magnum engine, I pull the blue drain plugs total of 3 two on the right side and one on the left side, I installed the ones of the front of the engine but one on the back right side I cannot find where it goes. I should have take some photos before pulling them. anybody has an idea where it is located?

I'm gonna give it another try and see if I can find it, if not I'm going to use the earmuffs and run water though the engine and see where it comes out. Any help will be greatly appreciated.
I bought the boat about 2 months ago so I'm on the learning curve on this one, I had several boats but none with a 496 Magnum Engine.
THX!
Pete

Ditch the blue plastic junk before they leave you stranded or break off in the hole. Get stainless steel replacements.

Thank You, i did not knew that was an option, I'll look for them, THX!

two on impeller housing, one on cool fuel system I believe...

should be one on the oil cooler

look at Hardin Marine of cp performance

https://www.hardin-marine.com/p-8108...74-5-pack.aspx

out of stock at Hardin until end of month

It literally took me a year to get those! Every single time I tried to order I got the 'out of stock' message.

I bought 8 or 10 of the stainless ones from a user on here last yr.

Your 496 should have 2 on the seawater pump (down low starboard side towards the front of engine), and 1 on the port side towards the front of engine on the water drain valve.

Aren’t the threads NPT ? If so any brass plug will work.

they are not npt,regular threads

What thread size are they ??

If I remember,3/8-16

1/2 x 13 NC is the die size

yep, when I made my remote drain for the Cool Fuel II system, I used a stainless 1/2-13 bolt as the foundation piece.
https://cimg6.ibsrv.net/gimg/www.off...26bd559585.jpg

That's a GPT post if I've ever seen one!

I like the TRL sticker.....