Help identify part and where to purchase. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

conoco · 11-13-2020, 11:16 PM

This has a button that is engaged when one of the arms on my heater controls is engaged. It is hooked up to 2 wires which I am assuming the button is either powered on or cut off when the flap on the heater control box is shut. I really dont know what it does.

I have heater w/AC. LMC doesnt list the part. This one is pretty corroded and bent so I am hoping someone could identify it and have suggestions on where to purchase.

It is in a 1972 gmc k2500. Thank you.

**Stocker** · 11-14-2020, 12:48 AM

That is a normally-open electrical switch. When the plunger is pressed, the contacts close to send 12vdc to the A/C compressor to engage the clutch.

Here's a source: https://www.brotherstrucks.com/67-72...tinfo/ACS6772/

Another: https://www.classicparts.com/1967-72...ctinfo/68-961/

conoco · 11-14-2020, 01:01 AM

Thank you. It's hard too look for parts when I dont know what area to look!! Thanks for the help. Little bastard is expensive for how small it is.

Andy4639 · 11-14-2020, 03:00 PM

Quote:

Originally Posted by conoco

This has a button that is engaged when one of the arms on my heater controls is engaged. It is hooked up to 2 wires which I am assuming the button is either powered on or cut off when the flap on the heater control box is shut. I really dont know what it does.

I have heater w/AC. LMC doesnt list the part. This one is pretty corroded and bent so I am hoping someone could identify it and have suggestions on where to purchase.

It is in a 1972 gmc k2500. Thank you.

That is a simple On/Off switch. Easy to take a part and clean it up good and lubricate and put it back together. It would really have to be messed up to replace it.

**Stocker** · 11-14-2020, 07:59 PM

Just dug through some old emails.... A few years back, I sprayed mine thoroughly and cycled it extensively, and got it to work just part of the time. Before I discovered what it was called or how to locate one from a vendor, I noticed "INDAK" stamped on the switch. Google helped me contact the manufacturer. I'm not sure if they normally sell to the public, but I spoke with a gentleman who took pity on me. He sold me a J634A switch at a reasonable price, and it's an exact match to OEM and it works perfectly. Here's a link:

https://www.indakswitches.com/push-b...tton-switches/

11-13-2020, 11:16 PM	#1
conoco Registered User Join Date: Nov 2019 Location: Eagle River Alaska Posts: 320	Help identify part and where to purchase. This has a button that is engaged when one of the arms on my heater controls is engaged. It is hooked up to 2 wires which I am assuming the button is either powered on or cut off when the flap on the heater control box is shut. I really dont know what it does. I have heater w/AC. LMC doesnt list the part. This one is pretty corroded and bent so I am hoping someone could identify it and have suggestions on where to purchase. It is in a 1972 gmc k2500. Thank you. Attached Images

11-14-2020, 12:48 AM	#2
Stocker 20' Daredevil (Ret) Join Date: May 2003 Location: Jefferson State Posts: 13,809	Re: Help identify part and where to purchase. That is a normally-open electrical switch. When the plunger is pressed, the contacts close to send 12vdc to the A/C compressor to engage the clutch. Here's a source: https://www.brotherstrucks.com/67-72...tinfo/ACS6772/ Another: https://www.classicparts.com/1967-72...ctinfo/68-961/ __________________ - Mike - 1972 K20 LWB 350/350/205 RIP El Jay Last edited by Stocker; 11-14-2020 at 12:55 AM.

11-14-2020, 01:01 AM	#3
conoco Registered User Join Date: Nov 2019 Location: Eagle River Alaska Posts: 320	Re: Help identify part and where to purchase. Thank you. It's hard too look for parts when I dont know what area to look!! Thanks for the help. Little bastard is expensive for how small it is.

11-14-2020, 07:59 PM	#5
Stocker 20' Daredevil (Ret) Join Date: May 2003 Location: Jefferson State Posts: 13,809	Re: Help identify part and where to purchase. Just dug through some old emails.... A few years back, I sprayed mine thoroughly and cycled it extensively, and got it to work just part of the time. Before I discovered what it was called or how to locate one from a vendor, I noticed "INDAK" stamped on the switch. Google helped me contact the manufacturer. I'm not sure if they normally sell to the public, but I spoke with a gentleman who took pity on me. He sold me a J634A switch at a reasonable price, and it's an exact match to OEM and it works perfectly. Here's a link: https://www.indakswitches.com/push-b...tton-switches/ __________________ - Mike - 1972 K20 LWB 350/350/205 RIP El Jay



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