Replacing gauges - can I tie into old harness?

[swyto1234]

I have a 1999 225TXRX Saltwater series II ox-66 The old set of gauges need to be replaced. Can I purchase the gauges Tach 6Y5-8350T-82-00 and Speedo 6Y5-83570-85-00 and plug them into the existing harnesses? Would I need to purchase the two gauage kit 6YR-W0035-F1-00 and replace the harnesses and tubing as well?

[boats.net]

Those part numbers will connect to your harness, you can just order gauges.

[swyto1234]

Thanks

Thank you for your help.