Welcome to the FRF Sunseeker Section. Based on what you wrote and how you wrote it, I suggest you take the model number off your COLD
water heater and go to the Atwood (Most likely) or Suburban web site to find what you seek. I will try to find links for you to the most likely places... or you could just pull it out and take it to your local RV dealers parts counter and say; I need one of these.
Here’s a link to the Atwood Manual:
http://www.atwoodmobile.com/manuals/...rPartsList.pdf
Here is a link to the Suburan Manual. Pg 22 has the list.
https://www.rexandsonsrvs.com/manual...ice_Manual.pdf
Edit: So after all that, I’m wondering what makes you lean towards replacing the element? There are other things that could make it non functional.