Gasket or crush washer or special crush washer?

[rphillips]

"83" GS1100E...Thinking what the Suzuki parts diagram shows as a gasket on the oil drain plug is just a "Crush Washer". Is that crush washer anything different from any other 14mm crush washer at the local parts store? Also is copper or alum. the best?

[Nessism]

The Suzuki crush washer is nice. It's some sort of plated tubuler formed washer. Much nicer than some cheapo type crush washers that are just a donut of flat aluminum (like on my Honda car).

https://www.ebay.com/itm/365912646592

[bwringer]

It's a 14mm zinc plated steel crush washer. It's sort of tubular in cross-section, so it squishes and seals very nicely.

For whatever reason, lots of people have the weird idea that you can re-use these forever, so you have to look very closely at your drain plug to see the remains of the original multiply-crushed washer. It can be difficult to remove (I have a very sturdy knife blade I can tap in between the washer and the plug with a hammer), but you really need to remove it in order to do the job right for the first time.

Here's a good look at what they look like before squashing:

https://www.ebay.com/itm/365912646592

I have no idea how legit this particular seller is or anything, but that's the correct part number and the picture looks correct.