Where to get a replacement holding tank

The friendliest place on the web for anyone with an RV or an interest in RVing!
If you have answers, please help by responding to the unanswered posts.


Sep 14, 2006
I have repaired my black water holding tank two times and it is virtually destroyed as a result of a blowout. I have looked online and there are a few places to get tanks but nothing exactly like what i have. Is there anywhere I can get an exact replacement tank by giving them the Make and model of my rig?? 91 class C fourwinds. Frustrated in NC.  Thanks


Moderator Emeritus
Feb 1, 2005
Check the tank for a part number.  There are a lot of different holding tanks, and without a number, it will be very hard to find a replacement.  If you can't find a number, a call To Fourwinds with the vehicle serial number MAY get you a part number, but that's chancy with a 16 year old rig.

I'm going through the same process right now.  No number visible on the tank and the service center is trying to get on from Monaco.  If they can't then the next step is to measure the tank in all dimensions and try to match it.
Top Bottom