Years ago I made a bulk purchase of washers for the transmission and differential fluid fill and drain bolts (from a company that is no longer around). The washers are actually three different sizes now that I took a good look at them.
I know that Part No. 94109-20000 in the trany fill bolt washer. It appears that half of the order is the correct size, and half is a slightly smaller size, that does not fit the tranny fill bolt.
Part number 94109-14000 in the tranny drain bolt washer. The left over washers are larger than the drain bolt washer, yet smaller than the fill bolt washer. I wonder if I got some odd sizes back when I purchased them or if maybe I mixed up some other washers into the tranny bolt washer bag.

 

The MT drain washer is 14mm and the MT fill washer is 20mm. Is that what you are seeking?

 

I have the 14mm MT drain washer and the 20mm MT fill washer. It's an 18mm washer that I don't know where it belongs. Do you know what the diff fill and drain washer sizes are off hand?
Thanks.

 

Search is your friend here.

Diff drain plug == 18mm
Diff drain filler plug == 18mm in COPPER

 

Thank you. I have both fhe Diff fill washer 90402-pcz-003 in copper in one per bag and 90401-pcz-003 also in one-per bag. It was the free standing 18mm washers that were puzzling me. I'm good now. I appreciate the quick help.