Believe originally it would be a oil temp. From back of the gauge to the metal fitting lead is 21 inch. So 27 inchs total length of tube and everything. All bezels are black painted brass.
I have black large flange housings if someone wanted them. These gauge is near impossible to find in any condition. Fine print = NO Express or Implied warranties of any kind whatsoever about this merchandise. Except as expressly set forth in the item description. ELECTRICAL ITEMS MUST BE INSTALLED BY A PROFESSIONAL.
Just a side note to all shopping for a switch or switch sets for their antique car, hot rod, race car or truck build. I only sell quality parts. Most knobs fit most switch I sell but their is some that don't work out very well. If you like a certain knob, just ask if it will fit the switch your interested in. Most knobs have to be fitted to each switch.I will not sell anything I would not use on my cars. The item "OLD SPEEDSTER PREWAR RACE CAR GAUGE SET HOT RAT ROD SCTA VINTAGE DASH INSTRUMENT" is in sale since Friday, February 12, 2021. This item is in the category "eBay Motors\Parts & Accessories\Vintage Car & Truck Parts\Gauges". The seller is "mr-dash" and is located in Ferris, Texas. This item can be shipped worldwide.