Tachometer - another question

[exeter27]

As mentioned in a post about a week ago, I won the auction for a Yamaha tachometer - 6y5-8350t-91. You folks were kind enough to let me know that with some proper cabling, it could be adapter to work on my 2004 F60. Well, i received the tachometer today. In the box was part number 6Y5-2818R-32. So, what motors was that one designed for?

Can I use it on my F60 (if so, what's involved) or do I send it back? By the way, I did receive cable 6y5-83553-n0 with it.

Thanks in advance for your help!
Chuck

[boats.net]

Don't know what that part number is.