All those numbers come up as "Tube Assemblies" for me. Prolly the tube, plus two nuts on a TR-4 valve? Don't forget about the "Protector", which is what they call the rim strip.
Just speculating, but I'd guess that one was from IRC and the other was from Bridgestone.
Personally, I wouldn't go with a Suzuki labeled part. You know that they are sourced from a rubber manufacturer. The Suzuki label just means paying another markup, and getting a tube that has probably sat on a warehouse shelf longer.
I think Michelin makes the best tubes, but a couple of Kendas I got were surprisingly good for the $. Some aftermarket tubes seem real thin and fragile. I don't mind spending more if I'm getting something for it. Something other than a brand name on a piece of paper, anyway.
Maybe this Bridgestone 140/90-15 TR-4 would work:
https://www.ebay.com/itm/316530302092