Dometic™ A&E 3108399.019U RV Awning Torsion Assembly - LH - BlackDometic A&E 3108399. 019U RV Awning Torsion Assembly LH Black This is a replacement torsion arm assembly for the Dometic A&E 8500 9000 Awning. The torsion assembly has a wound coil spring which provides tension on the roller tube to roll the awning up into the travel position. It includes the complete left hand end assembly, including spring, rod, pin drive, and top casting. Additional Info Product Overall Length: 39 End Cap Outside Diameter: 3 13 16