Full parts list below amazon electric section. I would definitely buy again.

E289d29 Boat Tach Wiring Wiring Resources
Wiring a tachometer on a boat. Samdo 85mm marine tachometer car truck boat tacho gauge with hour meter waterproof 8000 rpm 12v 24v. Seat the wider face rim the front edge of the tachometers exposed side the part that sits outside the dashboard against the hole edge and use. We have gathered numerous pictures hopefully this picture works for you and also assist you in locating the response you are looking for. Its pretty standard in boat wiring to bypass the main battery switch for one thing. Id rather have a dead battery than a swamped boat. Find the boat gauges and parts youre looking for.
Faria 33005 tachometer 7000 coral. Slip one of the ring connectors on the green wire onto the terminal post on the back of the tachometer marked gnd remove one of the screws on the boats common ground slip the connector on the other end of the black wire over that screw and thread the screw back into the common ground tightening the screw with a screwdriver. Finally the tachometer sending or pul wire will be dark grey gy in color. In the case where the internal light has power supplied separately the wire feed will be dark blue dkbl the g terminal is the instrument ground and will be either black or yellow in color depending upon the vintage of the boat. The tachometer was easy to hook up the only draw back is the lead wires were not quite long enough for a 18 pontoon boat so i just laid it over on the back seat until i figure out a way to extend the wires and mount it. The boats bilge pump float switch.
My boat tach started showing rpms way higher than it should and i could tell the motor wasnt actually turning that high. Connect the boat harness wiring to the tachometer if it was disconnected in the repair process and reinsert the connected wires back into the tachometer dashboard hole followed by the tach itself. This way even if your battery switch is off if your boat starts filling with water the pump will still kick on. 44 out of 5 stars 26. Outboard motor control wiring part 6 tachometer wiring rpm gauge. Get it as soon as thu jul 23.
Free shipping by amazon. Great service fast shipping low prices. Only 15 left in stock order soon. Boat gauge wiring diagram for tachometer thanks for visiting my site this post will discuss concerning boat gauge wiring diagram for tachometer. 31 out of 5 stars 9.