1970 Headlight Switch

[Charles W.]

[Mark E.]

Re: 1970 Headlight Switch

I'll be impressed if someone knows the answer to this one. Can you identify the missing circuit by referring to the wiring diagram? Or post a photo and let's see if we can figure it out.

[Joe L.]

Re: 1970 Headlight Switch

I am trying to determine any functionality difference between headlight switches Delco 1995166 and 1995191. It’s my understanding that the original switch in my 1970 is a 1995166 and the service replacement for the 1970 was 1995191. A NOS service replacement is more readily available than the original. The original has 8 electrical prongs but the service replacement 1995191 has 7 prongs. What function did the extra prong serve? Will I loose any functionality if I install the service replacement?
Thanks for your input.

Charles------

I cannot tell you what the prong difference relates to. However, I can tell you this: the GM #1995191 switch will SERVICE all 1968-77 Corvette applications and no functionality is lost when using it as a replacement for the 1995166. So, as far as I am concerned, the prong difference is a moot point.

By the way, the 1995166 was discontinued in July, 1974 and replaced by the GM #1995191. The latter was discontinued without supercession in September, 1999.

[Charles W.]

Re: 1970 Headlight Switch

The 8 terminal switch is installed; I don't have a photo. I looked at a wiring diagram but couldn't find the answer.

[Bob H.]

Re: 1970 Headlight Switch

As stated above, there is no functional difference. The reproduction part is likely one of the worst replacement parts made Rheostats seem to burn out easily. I finally bought an NOS one

[Joe L.]

Re: 1970 Headlight Switch

As stated above, there is no functional difference. The reproduction part is likely one of the worst replacement parts made Rheostats seem to burn out easily. I finally bought an NOS one

Bob------


Yes, I saw this situation coming a long time ago and "stocked up" on the GM #1995191 just before they were discontinued in 1999.

[Charles W.]

Re: 1970 Headlight Switch

Thanks for the responses. My experience with the reproductions has not been favorable. I purchased a nos 1995191 on ebay. It had not been tested before I got it. The on/off function did not work. The seller accepted refunds and sent a nos 1995166 in its place. It turned out to be a good purchase after all.