Anyone have an original fuel sending unit lock ring?

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I used the OEM lock ring and two gaskets.

The old one (still soft) and the new one.

Worked well
 
Just bend the lock tangs up a little and it will solve it.
 
OEM is 0.0655

Aftermarket unknown source but came with the A100 sender.

Screenshot_20230430-134415.png
 
Steve Mcbean said:
Top of tank keeps leaking. I was recommended here to find an original lock ring.
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One important thing to note here on the site, if you are looking for a part new or used, start a parts wanted thread.
 
Yes, bending the outside of the ring in order to increase the slope on the ring is the easy answer to this issue of "thin metal" lock rings. I have had good luck using a thicker rubber gasket and Permatex fuel resistant gasket dressing.

A thicker (Dorman) lock ring did not fit into the threads on my tank. Oddly enough, the thicker gasket that came with the Dorman ring made for a perfect match with the lock ring already on the tank. It is all a matter of matching the recess-depth on the existing tank and threads with the ring and gasket IMO.
 
Also hoping that the surfaces are not warped too badly. Rubber doesn't flow well into low areas. It's not always the lock ring and gasket that's at fault. I use an aircraft tank sealer, mine will never leak again, yes, it can be taken back apart.
 
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