Replacement water fill caps

Jan 2, 2017
765
O'Day & Islander 322 & 37 Scottsdale, AZ & Owls Head, ME
Has anyone replaced their water fill screw-in caps? My 322’s are falling apart. I purchased some online (China!) for a 1 1/2” opening but they don’t quite fit. Slightly too large and what looks like different threads. If anyone knows of a source, I would be grateful. Thanks.
 

Pat

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Jun 7, 2004
1,250
Oday 272LE Ninnescah Yacht Club, Wichita, Ks.
I was able to replace the water cap with an exact cap...my chain broke; not the cap... but the cap wend down with the chain......I'm going out to the lake today and I'll look just to verify my statement above....I do know I found replacement(s)...you might check Defenders or West Marine.
 
Jan 2, 2017
765
O'Day & Islander 322 & 37 Scottsdale, AZ & Owls Head, ME
Thanks Pat. I can find similar-looking caps online. My problem is that the ones I purchased (for a 1 1/2” opening) didn't quite fit so I was hoping an Oday owner found a good source so I’m not just ordering more and hoping they fit.
 
Feb 26, 2004
22,901
Catalina 34 224 Maple Bay, BC, Canada
He has an O'day, not a Catalina.
One did not know what caps he had until he posted a picture. Different builders used that particular fill fitting with plastic caps.

my chain broke; not the cap... but the cap went down with the chain.....
Which is why we continue to recommend that you REMOVE the chain from new caps. Do not use it. Do not depend on it. Place the cap somewhere safe when you remove it, like in the cockpit. Dis the chains.
 
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Aug 17, 2010
316
Oday 35 Barrington
That is a Sea Dog deck fill cap. These deck fill caps are available through Amazon.com for about $10 each;

357090 - Gasoline pop-top cap
357091 - Diesel pop-top cap
357093 - Water pop-top cap
357094 - Waste pop-top cap
I have no idea what the part number of the OIL cap pictured is.
I carry a spare Diesel, Water and Waste cap on my boat just in case.
 
Jan 2, 2017
765
O'Day & Islander 322 & 37 Scottsdale, AZ & Owls Head, ME
Thanks eherlihy. If they fit your 35, they’ll probably fit my 322.