Rear Brake Light Switch Components

[wz507]

I am curious about a couple parts listed in the 1955-1965 spares book, more specifically items #8 and #14 in the image below. I don’t understand what purpose they serve since the switch body is already electrically protected against a possible short by the fiber disk #34 (wires attach atop disk #34). So what purpose would the size #10 fiber washer (item #8) serve? Normally if the parts book calls for a couple parts the description ends in a (2), but in this case items #8 and #14 seem to be single items. Could they be the internal parts shown in the last image? Seems stange that they would call out the size as a #10 x 13/32 x 1/32" fiber washer if it was an internal switch part. Any thoughts? Thank you.

Brake light parts.jpg (8.21 KiB) Viewed 5035 times

Brake light parts description.jpg (68.53 KiB) Viewed 5035 times

LR Brake light switch guts.jpg (110.94 KiB) Viewed 5035 times

[hennesse]

Harley had it right in the 1953 Spare Parts Catalog. But they started screwing up in 1954 - the STOP-light switch is in the section entitled SPOT-LIGHT SWITCH

In subsequent spare parts catalogs, the 72004-52 is sometimes called STOP-light switch, and sometimes SPOT-light switch. Browsing through all the catalogs is left as an exercise for the reader.