We carry the Dometic AGP series grey acrylic window pane sized 1300mm x 510mm, part number [phone removed], which fits the driver’s side window of the 2018 Winnebago Fuse. This pane is available for purchase on our website. However, the exact 1000mm x 510mm AGP series panes you need, referenced by label AGP71000X0510, are not currently listed or available in our catalog. Due to the precise sizing and series-specific nature of Dometic window panes, we recommend using the exact part number for replacements and do not advise substituting the 1300mm x 510mm pane for the smaller size. If we are able to source or add the 1000mm x 510mm pane later, we will update our inventory accordingly. For now, you can order the available 1300mm x 510mm pane directly from our site.