Otter parts list CRAC-02 lists part 862138 "adapter, fuel gauge" on page 123 (group 9.7312). There is also "adapter. heat indicator" part 1510678. I've no idea why they list 2 different adapters if they are the type of voltage reducer I'm suggesting as current practice is to use one version for low current devices like gauges and a different version for higher current devices like fan motors and radios. It seems the high current versions give bad gauge readings...
Although they don't have the * that commonly means unique to CMP in the parts list neither of those part numbers show in the 1929-1948 Chevrolet Master Parts Catalog. Also no result in GMpartswiki.com
On edit: In an effort to confirm or deny my idea, I just thought to check the part number of the fuel gauge mounted on the dash - it is the same part number as listed for the C60S. For the heat indicator, the C60S uses a mechanical gauge and the theory about voltage reducers only makes sense for an electrical version.
Last edited by Grant Bowker; 07-10-23 at 12:34.
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