VDO ''Cockpit'' fuel gauge.
52mm, black bezel, black face with white numbers and a red needle.
Can be used with a standard sender with some adjustment.
Compatible with senders that read 60 - 90 Ohms (empty) to 0.5 Ohms (full).
Full reading adjustment: Most stock VW senders are 80 - 10 Ohms, however the range on some senders can be adjusted to read 0.5 Ohms when full by adjusting the lever arm and lever arm stop. They must be able to read 0.5 Ohms so that the gauge will read full.
Empty reading adjustment: The gauge can be calibrated to read empty with 60 - 90 Ohm sender via the calibration screw on the side of the fuel gauge.