What the direct replacement for a Dometic AC Model 59516.731G9?

Updated 04/14/2026 | Published 04/08/2026

Question:

Hello, I’m trying to replace a Dometic AC Model 59516.731G9 and Product Number 991761589. Will this unit be a direct plug and play replacement?

asked by: Chelsea

Expert Reply:

Thanks for asking Chelsea, I can help complete your setup.

I know replacing an A/C can feel like a bigger project than expected, especially when you’re hoping for a simple swap.
With the newer units switching to R-32 refrigerant and your current Dometic using R410A, it does mean the systems aren’t compatible. So the full setup would need to be replaced rather than just the rooftop unit.

The good news is there’s a complete solution that makes it straightforward. The # ADV92SR kit includes everything you need in one package; the 15K BTU A/C unit, start capacitor, air distribution box, and wall-mounted thermostat, so you’re not having to piece things together or worry about compatibility issues.

This way, once it’s installed, you’ll have a fully matched system that’s ready to go.

The electric heat strip # ADV34QR is sold separately. This can be added to remove the chill on cold or frosty mornings.

Do you usually run your AC overnight, or just during the day?

expert reply by: Mike L

Chelsea

4/14/2026

I’m not sure what I was thinking. We have to replace the whole unit anyways - and I did find the one you recommended and I believe that’s what we are going with. In southeast Texas it generally is set to run constantly. Of course only when we are using it is it set at a low temp. When stored it’s set on about 80 at all times.

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