Questions on thermostat and distribution box

[Ora]

What thermostat p/n sold by Dometic to operate a 15k BTU Penguin 2 AC (not heatpump) works with the installed 4 wire set up in my 74 Ambassador? ?? The more I look @ websites the more confused I become! Any suggestions for companies to purchase AC / distribution box / thermostat / condensate pans would be appreciated.

[cwf]

Howdy!
Posting pics can help... Many items are now obsolete... Also, provide model/serial numbers in post.

My 1999 AC-furnace thermostat is obsolete. I had to buy and replace the buttons myself to resolve problems.

Check with LEWSTER on this forum.. If he doesn't know... Well, I wish you well in install of new AC or Lewster's advice.