I reached out to my contact at Lippert who said that the Solera 18V Power RV Awning Conversion Kit # LC434730 will allow you to open up your Dometic awning the complete 85" that you asked about. view full answer...
In order to determine if the correct Lippert Replacement Hydraulic Cylinder like part # LC339031 you would need to measure the distance between your hydraulic fitting ports and note the color of the cylinder. The above Lippert Replacement Hydraulic Cylinder is designed to replace a black cylinder with hydraulic fitting ports spaced about 25-1/2" apart. If you have a different color or spacing then let me know what that is but I cannot confirm based solely on the year, make, and model of... view full answer...