Fortunately, this is much easier than sounds. Look at the top of the sender unit which is installed in the tank. On the top there are several strings of characters; you want the three alpha characters which should be in the upper left. If in doubt, or the characters don't look like our example, please note all of them.

Jot the code(s) down, you will be asked for them on the next screen. It is not required to look up the codes on the senders, but without the code we cannot honor our Guaranteed to Fit promise. (The part is still returnable but you would have to pay for return shipping.)

If your model (or the type of tank for your model) is not shown on the list, please contact us. Include your model and hull number, plus any characters found on the top of the existing tank sesnor. A photo of the sensor (or the top of it) will help, too. There are replacements available for all senders.