4BY2 Engine Anodes

[ngleadow]

Hi;
I have this odd problem with changing the engine anodes on my 4BY2-150 (2010 R25). The top anode near the turbocharger is different from the bottom one. The threads of the top anode are finer than those on the bottom. Also, the top anode takes a larger socket wrench than the bottom one. Anyone have a similar issue? or solution? or explanation?

Norm on Blue Socks

 

[John Shea Jr.]

It may be a problem caused by different suppliers. I have had different sized nuts on the anode but have not had a different thread for the part seating in the block. I purchase my zincs from ZINCS.COM.

 

[knotflying]

The original nut size was 24 MM the replacement from Boat Zincs is a 22MM, but the threads should be the same.