In order to find the correct replacement hinge for your 2018 Heartland RV Big Country 5W you're just going to need to measure your current hinge and note the type of hinge.
For instance, the replacement # PLR3408-PS is a strap hinge that measures 9-5/8" long, has a mounting bracket that measures 1-5/8" long x 4-1/2" wide, and has a 1/2" pin diameter.
Or if you're still not sure feel free to take some measurements and send a picture in and I'd be happy to help. view full answer...