Water temp Sender / Gauge

David, It sounds like you have gotten the gauge and the sender already. What did you get?

The Vector series only has a volt meter available. I would replace all your gauges so they match. Wiring the volt meter is easy! The easy way is to shunt the old amp meter (connect the red and orange wires together) and then the volt meter needs a ground and a switched (ign. term on the switch) positive.

Yes, all the gauges except the hour meter are the same size. The hour meter is I think maybe 1/8" smaller but will cover the hole. I put some tape around the case to center it in the hole. My file is up north with the boat so I can't look up the temp sender but the only difference is the NPT pipe size. I think mine was 3/8 but you had better check. Oh, The gauges that are closest to the original are the Vector series. I'll post the wiring diagram. You will need to convert to a volt meter instead of the amp but since you are doing the 100 amp alternator it is needed anyway.


Edit: while I was behind the dash I did change all the fuse holders because the word "fuse" were off mine. All the .250 quick connect Sta-kons were loose and needed changing too. The originals were a brass that was so brittle that they would break when I tried to tighten them up by squeezing them. I had some voltage drop issues that went away with some terminal and connector cleaning. Some dielectric grease will go along way towards future protection.

I replaced all the gauges in my 77 Tique and found that Go2Marine had the best prices. They aren't a exact match but close. The originals aren't made any more.