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Re: Coolant Temp Gauge - What makes it work?
Of the choices available, which brand might be most accurate? I did find that NOS one on Ebay for $22. Would that be a better choice than a new aftermarket one?
One is GM #8993106. It has 1/2" NPT threads. The currently available AC Delco replacement is #2134792. Standard Motor Products equivalent is TS-71 and Wells is 1T1049.
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