This gas tank sender unit and gauge kit electrically measures how much gas is left in your tank. The sender unit portion of the kit is adjustable so it will fit most any gas tank. You must cut a hole through the top of the plastic gas tank, install the sender unit in the tank (after adjusting it in accordance with the instructions), and then install the gauge in the dash.
A dash gauge mounts into a 2" hole in the dash, or you may order a special Gauge Mounting Bracket that may be installed under the dash or elsewhere. Electrical wires, (not included), are connected from the battery to the sender unit and to the dash gauge.
INSTALLATION TIP: If the 'hot' lead to this gauge is wired directly to the battery positive then the gauge will always be 'ON' and this will slowly drain the battery during long periods of storage. The 'hot' wire to the gauge may come off the switched side of the key so that the gauge reads only when the key is turned to 'ON', or the 'hot' wire may come off the switched side (large terminal) of the main solenoid so the gauge reads only when the pedal is actually depressed. The wiring diagram below shows the gauge wired to the 'switched' side of the key. Please be sure to read the Important Note just below.
IMPORTANT NOTE: These sender units are designed to be installed in metal gas tanks where the metal tank acts as a ground for the sender unit. Most modern golf carts have plastic tanks so you will have to run a separate ground wire from the battery to the sender unit proper in order that it work correctly.
WARNING: Gas & electricity are potentially explosive! Use precaution and follow directions exactly. We strongly recommend a trained technician do this installation. Read more about installation procedures on the GAS GAUGE page.
TECH TIP: This sender unit & gauge communicate with each other using ohms. At 'FULL' the ohm reading is around 96 and at 'EMPTY' the ohm reading is near zero. The gauge and the sender unit must use the same scale. Other sender units & gauges might use a different ohm scale. If you want just a sender unit or just a gauge you must be certain the ohm scales agree or the two will not work together.
If you need the gauge or sender unit separately, we offer those selections from the option menu.