Is this
https://www.ebay.com/itm/26117483727...VozTEKHjQbfQto


Interchangeable with this?

https://www.rockauto.com/en/moreinfo...19465&jsn=1047


Quite a difference in price.

 

Good question. Bump.

 

I'd automatically go with the AC Delco one, but that seems like a ripoff price.

 

IMO, as long as the operating pressures, thread size and style and clocking for the plug are the same, they should be interchangeable. It appears that way to me looking at the pics but I cant say for certain.
But, how can you go wrong at only $22 ?? What car is it for? Your cars you better pay up and go AC Delco

 

Adam, there's a shrader valve under there, right? No need to evacuate the R12?

 

I cant remember, I'd need to pull out one of my GM shop manuals to refresh my BAD memory

 

 

Thanks bud!

 

I didn't spend an hour of researching/ checking/following part numbers to give you a wrong answer.....

 

Thanks! Already ordered.

 

BTW, the switch is further forward, about equidistant from the accumulator and compressor.

 

Maybe it is me but I do not see the results of your search and efforts. What part number(s) do you recommend to activate fans at a lower than OE temp? For my 89 IROC 305 LB9 AT car. Thanks.

 

deadbird and I spoke via PM.

 

Sorry, I thought you were looking for the A/C press cycle switch ??

 

I would appreciate seeing the results of your efforts, regarding AC cycle switch and radiator fan switch's. I am not requesting additional work, just what you already found. PM if you wish. Thanks, again.

 

My first post have the two options for an AC high pressure switch. Kev confirmed that in a PM. I will almost always go with an AC Delco part if available. Even if it costs more. Even if it costs double. But I'm not getting ripped off at 6 times the price, so I ordered the 4 Seasons one from Rock. This only to get the secondary cooling fan to operate normally. I confirmed the relays are fine. When I jumped the connector to the high pressure switch the secondary fan started with the AC on.

I'm assuming there is a schrader valve under there though. Otherwise we are going to have a big mess.

 

Thank you. I prefer OE, but at that price difference, 4 Seasons has been around a long time and I would get that one, also. Yes, there was originally a Schrader valve under said switch. So unless some Buffoon removed it, which I have never seen happen, you will be OK!

 

I am the original buffoon who's owned that car.

 

Too funny Charlie

 

"say it ain't so, Chazman"! You didn't delete an AC Schrader valve!

 

Nooooooooooo! I would never commit such hackery.

 

Apologies to all... I was not meaning to be a d--k to chaz.

I would also like to clarify RA is wrong on this part year range

This a/c switch is for 88-92... not 85-92

85-87..this switch worked opposite (chassis ground) of what is available.

 

No worries. Glad to have your input.

 

So the 4 seasons one doesn’t fit. The notches don’t fit the connector.

 

Factory

 

Bummer, I was a little concerned the clocking would be off and that looks like the case here

 

That is too bad!

 

Well not only does that suck.. research has failed me and you and now, I'll eat my shoe.

It does appear the locking clip tab is correct, the alignment tab is off.
Technically, you could shave the alignment tab off and plug itvin.

There is no polarity (I know the align tab keeps it from spinning to) so,, as long
as the function is correct ... open w/ac off, closed w/ac on, should work.
The switch simply closes to ground.
This lets ecm know to run the primary fan cause ac is (charged) working and grounds 2nd fan (like fan switch)

4Seasons has a matching plug though
https://www.rockauto.com/en/moreinfo...=17535&jsn=528

Sorry for giving you a s___ alternative part chaz

 

Just ordered the OEM one on eBay. Ouch!!!

 

Man, I just noticed the guy raised the price of that switch to $138!!! Add another $20 for shipping and tax.

 

My $150 switch came in. I'll let you guys know how it works.

 

I almost forgot to get back to you. Yes, the way over priced high pressure switch did the trick.

 

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