M20E Fuel Cap Assembly 610036-503

[cvela]

After replacing o-rings and tightening the fuel cap and still experiencing water intrusion in the left tank, I realized there was a hole in the fuel cap assembly, above the fuel cap. I'm now shopping for a replacement fuel cap assembly, part number 610036-503. The part I find does not look like the one I have. But does it matter?

The adapter only

They both have the same profile to the flat part of the plate. Mine is different:

Part of my fuel cap can also be seen above. Is there a different part number for my fuel cap assembly? Do I need to worry if I don't use the same? This is for a 1967 M20E.

Thanks in advance for any help.

v/r,

Carlos

[TaildraggerPilot]

I’ve got a set of the flanges and caps in serviceable condition from my 67E, and an extra cap as well:

 

 

[TaildraggerPilot]

Yes, that’s right. Mine are from a bladder. Sorry about that. I just saw those corroded flanges and jumped the gun. I would consider that an unairworthy aircraft in its current state.