Cummins Marine Diesel Repower Specialists › Forums › Marine Transmissions › ZF220A Crush Washer Material
Craig Menzel.
I’m getting ready to change the oil on my ZF220A transmissions. Can I use copper crush washers (instead of aluminum) for oil drain bolt and filter screen bolt? Concerned about dissimilar metal interaction. Thanks.
Thanks Tony
I think every ZF oil plug sealing washer I have seen is copper.. Does is really matter–IMO, it does not. But I do like Rectorseal 5 on the thread and / or Teflon tape when I re-install.. To me the washers are just about are always re-useable.
Hi Rob – I don’t know. I tried to find replacement washers using ZF part numbers online, but was unsuccessful. However, I was able to identify the size of the OEM washers, but not the material. Based on the specs I found, I ordered two sizes (one for filter, one for drain bolt) in copper from another source. For the larger filter washer, my source did not offer an aluminum option.
What washer material does Seaboard use for ZF transmission work (I don’t see an option to buy what I need on the their site)?
Thanks!
Should already be copper. Are yours aluminum?
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