I have a 1999 Sundancer 400 that...

[Bornederitavill]

I have a 1999 Sundancer 400 that needs a new AC raw water pump and the label on the old one is in pretty bad shape so I can’t read the specs! Does anyone know the proper replacement? Also need a resource for the hydralic cylinders for the swim platform as they are steering to leak and I want to replace them! Thanks and happy Boating! Mike

[Slow_Ride]

Best to just call the factory and they can tell you directly. I don't know the exact replacement, but the rule of thumb is 3 GPM (or 180 GPH) per ton of refrigeration. For the a/c system that serves the areas other than the flybridge on my 560, it is a Dometic PMA1000C. Yours is probably similar. If you can post pictures of the pump and give the suction and discharge hose sizes,, it could be figured out that way too.

Go to this website and see if you can match it up:

https://www.dometic.com/en/se/products/climate/air-conditioners/accessories

[Bryan_B]

I have the same boat, here are pics of the pump label on mine.

[Bryan_B]

Second pic

[SeaMax]

I replaced mine with a 600 gph and the performance was much better than the old 500 gph.

[Bornederitavill]

Thanks Bryan and Seamax! I was able to find a replacement online

[Captain_Mark]

https://www.amazon.com/s?k=march+pump+ac-5c-md&crid=32OAD86BJEF6N&sprefix=march+pump%2Caps%2C233&ref=nb_sb_ss_ts-doa-p_3_10