For selecting a fuel gauge, what information should I have before contacting a distributor or sales rep?

1. Diameter of the opening the instrument will be mounted in
2. Do you require lighting in the instrument
3. Are you running a 12V or a 24V system (voltage adapters are available)
4. If you wish to match an existing fuel sender, what is the ohms range of the current sender (see questions on determining the ohms of your fuel sender and mixing Stewart Warner instruments with non-Stewart Warner senders.) Your distributor can help you with this if you know the brand and part number.
5. What type of environment will the instrument be used in (eg: highway; high moisture; off-road; stationary equipment; etc)

If you wish to match the style of existing instruments you should also have the following:

1. If your current instruments are a Stewart Warner line, which line (Seaworthy, Heavy Duty Plus, etc) (see the Stewart Warner Products page for the product lines)
2. Bezel color wanted (black, polished, etc)
3. Dial face and graphics (black dial, white numbers, SAE symbols, etc)
4. Pointer type and color (eg: red with black hub)

You should also provide information on the fuel sender you will need by following the guidelines in the "Selecting a fuel sender" question.