Fender skirts for RVs like the 2023 Thor Windsport 34J require precise matching by shape, measurements, and sometimes the VIN to ensure proper fit. While we may have Thor fender skirt options close to your needs, we recommend providing a clear photo of the existing fender skirt or area, detailed width and height measurements, and the RV’s VIN. This information will allow us to verify compatibility or identify the correct replacement part. In the meantime, you can review the Thor fender skirt listing we offer, such as the ICON Tandem Thor FS4995 in Polar White, to compare specs. Sharing your details with us will help guarantee you receive the perfect fit for your RV.