I don't recognize B13, my original can is MS 400-15 (pic). While I was furiously cleaning the grease and grime to get to the number, I checked out my 480 (marked MS 201-15), while the 499 is MS 355-15. I hopefully assume correctly that they are originals - they showed no signs of disassembly prior to mine.
Not trying to confuse the request - there are still 1116313 units around for sale, pricing runs up and down. You might go aftermarket and be able to pick up the correct appearance and application for a lot less -
Regards,
Steve