Although made by VDO, VDO make several versions that are physically the same size, but vary electrically and are used with a specific gauge. Some are low resistance, some are high. Some will increase resistance through the range of the float travel, while others decrease. You are going to have to find someone with an ohmmeter and record the resistance from the empty position to the full position to ID the correct sender.


5-90 Ohms
10-180 Ohms
240-33 Ohms