That's a pretty common size. You will even have a choice of quality: UN52 or 53 vs. UN72 or 3, the larger number being somehow better (and more expensive). The tough part will be getting off the current drive-side cup; see Sheldon (RIP) on a tool for the job. Be prepared to work hard. Search for tips on installing the cartridge - it's easy, but some steps make it work better.

Also remember that the drive side cup loosens clockwise (toward the front of the bike).