Source for Sea Ray Part # 1453984

scooper321

Well-Known Member
Jul 4, 2015
1,863
Baltimore, MD
Boat Info
2003 Sea Ray 400DB
Engines
Twin Cummins 6CTA-8.3
This part is listed in all of our manuals as

FITTING, NEPT 1/2"FEM SWVL BLK

it’s used all over our boats in multiple places.

But what is an NEPT? Is it the same as NPT?

This is a simple coupler, I know, but we’ve all been burned once or twice by buying the wrong thread or size, so I want to get this right. Is this the correct replacement?

https://www.defender.com/product3.j...15)&path=-1|2243574|2243585|2243592&id=761904

And what have you used for the in-line filter (406710)?

Thanks!
 
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Did you try your local SR dealer? Not for nothing, but those parts are probably under $10 each and you can get exactly what you need based on the part number - probably would only take a few minutes of time to call them.
 
EPT stands for "external pipe threads", so I think (it isn't in my book) NEPT is "National Exernal Pipe Threads".

I don't waste time trying to source plumbing parts thru Sea Ray's parts system. I go to the best plumbing supply store in town and can usually get what I need in one quick trip rather than waiting weeks for something (parts or information) from Sea Ray's parts system.
 
And what have you used for the in-line filter (406710)?

Thanks!

This is on the Freshwatersystems.com site. I have the old style strainer on the left. I assume that is no longer available? so you may have to switch to the new style if you need a strainer.
My 2003 360 had the new style strainer, but my 2004 400DB has the old style, go figure. Maybe they built it out of left over parts :)

FWIW I buy all my spare fittings from them.

The SHURflo 255-213 can be used to replace your old style SHURflo 17006109 or 17006129 Strainer.
n90vrw2ti3qjniqi0cll.jpg


The pumps are MPT-in and the strainers are MPT-in and FPT-out so the fitting you need for the end of your tank hose is FPT. So the fitting you showed from Defender is not the right one.

This pic is a winterization photo so the strainers are removed and my pigtail for pumping in the pink is on the pumps, but those fittings that you see on the ends of the tank hoses are what I assume you are asking about.
IMG_E1410.JPG

should be this:
https://www.freshwatersystems.com/products/watts-aqualock-seatech-female-connector-15mm-x-1-2-nps
 
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This is on the Freshwatersystems.com site. I have the old style strainer on the left. I assume that is no longer available? so you may have to switch to the new style if you need a strainer.
My 2003 360 had the new style strainer, but my 2004 400DB has the old style, go figure. Maybe they built it out of left over parts :)

FWIW I buy all my spare fittings from them.

The SHURflo 255-213 can be used to replace your old style SHURflo 17006109 or 17006129 Strainer.
n90vrw2ti3qjniqi0cll.jpg


The pumps are MPT-in and the strainers are MPT-in and FPT-out so the fitting you need for the end of your tank hose is FPT. So the fitting you showed from Defender is not the right one.

This pic is a winterization photo so the strainers are removed and my pigtail for pumping in the pink is on the pumps, but those fittings that you see on the ends of the tank hoses are what I assume you are asking about.
View attachment 93947
should be this:
https://www.freshwatersystems.com/products/watts-aqualock-seatech-female-connector-15mm-x-1-2-nps

Perfect. Yes. That’s exactly the fitting, thank you! I saw that on fresh water systems, but I wasn’t positive it was the correct one. So thanks for the confirmation. And for the part number for the filter. I will likeLy buy two (or three) of each.

And Frank is right - I would normally go to the store and match parts, but I can’t take the old one out until I drain the tank and remove it. I’m still using the boat, so I’m getting the parts lined up for when I winterize. That will be the time I replace this fixture.
 
Steve, is your filter cracked/bad? If you didn't already know this, the filter inside there is just a mesh screen - you can clean and reuse.
 
Steve, is your filter cracked/bad? If you didn't already know this, the filter inside there is just a mesh screen - you can clean and reuse.

I’m not sure. The fixture itself is leaking. So that’s why I’m replacing it. I figured I’d replace the filters as long as I was there. They are likely 17 years old (2003 400DB). If the fixtures are brittle and leaking, it’s likely the filter connections won’t be far behind.
 
I’m not sure. The fixture itself is leaking. So that’s why I’m replacing it. I figured I’d replace the filters as long as I was there. They are likely 17 years old (2003 400DB). If the fixtures are brittle and leaking, it’s likely the filter connections won’t be far behind.
Gotcha. It could be that o-ring that Mark mentioned... maybe just needs to be tightened up a tiny bit. But along your lines of thinking... yeah, it's $10 and it's certainly earned it's retirement after 17 years!
 

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