Deck pump-out adapter size

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True Wind
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Joined: 7/15/12
Posts: 145
Deck pump-out adapter size

Does anybody know the the thread size for a 2003 C36 deck pump-out adapter? 1.25" or 1/5"?

Thanks

2003 Catalina 36

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dpmill1
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Joined: 3/22/17
Posts: 4

I got these Sea Dog replacements / spares,  I think I got them from Amazon.  They work perfectly so this should get you started.  Sea Dog Replacement Deck Fill Waste Cap- Black (wholesalemarine.com)

David Miller
​Chester, CT
2004 C36 Mk2 Whimsea

True Wind
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Joined: 7/15/12
Posts: 145

I solved my question the part number is 310343502

Adaptor-Pump Out 1-1/2" x 11.5" Thread 

Or should I say that's the part number for my 2003 C36. It may be different for other years and models.

2003 Catalina 36

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