Year Horn Part Numbers
1953681 & 682 6V1954687 & 688 6V - white
1955759 & 760 12V - red -
1956 -1957339 & 3401958 - 1960351 & 3521961 - 1962441 & 442
Red insulator 55 up 12V
White 54 6V
Ever wonder why a 6V horn Insulator is white, while the first 12V in 1955 the insulator was RED
OR
The 6V voltage regulator came with no RED tag that the first 1955 did.
1955 was the first year for Chevy having a 12V system so that you could tell a 6V from a 12V , like the headlight bulbs 6V nothing on the glass cover while 12V was embossed in the glass cover

This may mean nothing to some people but I love little details , that's why I post trivia now and then, hope some like them.
1953681 & 682 6V1954687 & 688 6V - white
1955759 & 760 12V - red -
1956 -1957339 & 3401958 - 1960351 & 3521961 - 1962441 & 442

Red insulator 55 up 12V
White 54 6V
Ever wonder why a 6V horn Insulator is white, while the first 12V in 1955 the insulator was RED
OR
The 6V voltage regulator came with no RED tag that the first 1955 did.
1955 was the first year for Chevy having a 12V system so that you could tell a 6V from a 12V , like the headlight bulbs 6V nothing on the glass cover while 12V was embossed in the glass cover

This may mean nothing to some people but I love little details , that's why I post trivia now and then, hope some like them.
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