What compressor/gas?

[CmuCmu]

Hi there, hello, hope you're having a wonderful day - because I'm certainly not (for unrelated reasons).
So, one of the things I have in my to-do list is A/C gas recharge, however, in order to find where to go, I should know what gas my truck uses. Since I find conflicting information whether r12 or r144, I come to you my gurus.
"Check your compressor, it should say so right there!" Except, all tags are deteriorated to the point where I can't even tell which compressor (by part number) I have.
So, could you (please) help me out with this? It's a BIG10 from 87 with a 292 engine.

 

[Ricko1966]

You aren't going to be able to buy R12 even if you can find it. I can't remember how long back,but at least 20 years I had to be certified to buy it. You are going to have to switch to r134. There are or used to be some companies that marketed supposed drop in replacements for r12 but I'd very skeptical and cautious. Propane was a popular one, but I wouldn't want an evaporator leak,leaking 3lbs of propane into my interior or an attached garage with a waterheater in it.

 

[Grit dog]

Unless it’s been converted, it’s R12. US vehicles started converting to R134 in the early 90s, mandatory by mid 90s.
Being you’re in S America and we have no idea what your laws are or what’s available, it may be best to talk to a local repair shop or HVAC place.

 

[fast 99]

Mitchell shows it originally came with R12, 3.25 lbs. If converting to 134 A some changes will need to be done for it to be successful. Tell us what is available in your country then we can help with a change over and recharge.

At the very least it will need an O ring kit, orifice tube, and drier.

 

[CmuCmu]

Thank you for your replies; I've no idea if the system has had a retrofit already. However, from what I could read on that, the accumulator should point out if it uses r144. Gonna check tomorrow.
While we're at it, do you guys have a part number for that compressor?

 

[fast 99]

rockauto.com

Have never seen a vehicle converted to 144 in the US. No idea on specifics of that conversion.

 

[Radiohead]

Prolly a typo

 

[CmuCmu]

Omg I just noticed my autocorrect switched 134 for 144 hahahahaha

 

[Ricko1966]

Omg I just noticed my autocorrect switched 134 for 144 hahahahaha

I knew what you meant

 

[R Carnella]

You might be able to tell if it's been converted by checking if the port connectors have the 134a adapters threaded on.