Hi roncline,
Welcome to the Heartland Owners Forum and family. We have a great bunch of people here with lots of information and all willing to help if needed.
First, I moved your post to an area that more people will see it.
Second, we need more information about what your looking for. We are not a parts store and do not know part numbers. We need information on your unit and the item your having a problem with.
Hopefully when you give us more info someone will jump in here and help out. Or you could call Heartland Customer service, 877-262-8032 / 574-262-8030, but be prepared and have your VIN, and model of your unit as they will want this info.
I see you have been a member for 2 years.... jump in and join us.
Enjoy the forum.
Jim M