1989 300 Weekender Waste Deck Cap

[Kate8P]

Hi - we have been looking for a 1-1/4" replacement waste deck cap for our 300 Weekender. Attwood part 66074-3 is for Straight Pipe fills but threads do not match. Does anyone know the thread specs? Any help would be greatly appreciated.

Kate:smt100

 

[Sundancer]

I had the same problem with the fuel cap on our 87 250 DA. I order the whole fitting and cap from these guys:

http://www.marinepartdepot.com/new316ststcl2.html

It was cheaper than the cap alone anywhere else AND the cap was a direct fit! I didn't have to pull the neck out and replace it! I had tried the caps from West Marine and other places and the threads didn't match. I pulled the cap of the 300 DA and put it on the 250 when we sold it. I know these will fit your threads.