Is the power liftgate on your Volvo XC90 getting weak? Maybe it's not holding itself up anymore, or it's struggling to open automatically. If so, it's probably time for new lift supports, also called struts. This PM Auto kit gives you a complete pair – one for the left and one for the right – which is exactly what you need because it's best to replace them in pairs to ensure even lifting force. This set is designed specifically for the 2016 through 2024 model years of the Volvo XC90. They're built for 100% accuracy of fit, so they should bolt right into place like the original parts, replacing OEM numbers like 31455984 and 31663099. A super important reminder before you buy: please, please double-check that this is the correct part for your specific vehicle year and model. The listing has a vehicle fitment tool you should use, and if you're unsure, you can contact the seller with your VIN number to confirm. Once installed, these new struts will restore your power liftgate to its proper function, safely holding the tailgate open and allowing the automatic open/close feature to work smoothly again.