I get ME013307. I'm going to have some OE filters coming from Japan (provided they're not too much $) so I may not need any for a while, but it would be good to find a local source, if its a direct replacement.

Matt, I can't speak to bypass or no. Never ever seen a 4m40 in person (yet). BTW, I checked ebay for the pump seal you were talking about, and I think I found the one you bought in the UK - it includes instructions, and costs ú20, converting to about $40 CAD at the moment. Sound about right?

1991 HZJ77, 1999 KZJ90, 1999 UZJ100, 1992 M101CDN2
https://www.thegearheadproject.com/category/jdm-journeys/