chrysler lower unit drain screw

Shifflett115

Petty Officer 2nd Class
Joined
Jun 11, 2007
Messages
191
Hey guys , where can i find a new lower unit drain screw for a 1977 chrysler 135 outboard ,its not the allen head screw , its not the big standard flat head screw, its a little smaller size , its not the pivot screw , its all the way on the bottom of the unit, where can i find a new one at?
 

Frank Acampora

Supreme Mariner
Joined
Jan 19, 2007
Messages
12,004
Chrysler used three different screws for this plug: One was the large flat headed 3/8 screw with a gasket. One was the Allen head set screw. The last was a slotted, stainless pipe plug the same as the plug in the top of the head. This plug was (if I remember correctly) 1/8-27 NPT pipe thread. You can buy a brass pipe plug in the big box stored or you can order one from Graingers.

If the threads are too dicked up there is enough meat there so you can re-tap to a larger size.
 
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