*Additional senders with ohm ranges can be custom ordered as well.
- 10 / 180
- 76 / 6
- 100 / 6
- 0 / 30
***All senders must be re-calibrated if shortened from original length.
Calibration instructions for standard aftermarket sending units.
Unlike dipsticks, sending units allow you to continuously monitor your fuel level without having to stop and check manually. Unlike traditional "float" style senders, our sending units utilize no moving parts; rather, they measure the capacitance of the fuel between an inner and outer tube. The measurement (in ohms) is then sent to the gauge and is converted into a visual display of the fuel level. Because the senders do not have moving parts they are ideal for use in racing applications.
To accommodate the different styles of gauges and displays, we stock a variety of sizes and ohm ranges that are compatible with nearly all stock and aftermarket gauges/displays. Additionally, we calibrate and test every sending unit prior to shipment and guarantee them to work upon arrival.
Before purchasing a sending unit, it is critical to know what type will work with your gauge. There are two types of sending units we offer, 2-wire (2-terminal) and 3-wire (3-terminal). Although they both measure fuel level the same way, they differ in how the unit is powered (and hence, the number of terminals on the unit). With 2-wire senders the Send terminal both powers the unit and transmits the signal to the display. However, with 3-wire senders the power is received from a separate terminal (Pos) independent of the send signal.