4 PCS Car Window Regulator Drum Gear Spool Window Regulator Sprockets Spools For 2016-2021 Kia Optima Sportage Hyundai Tucson Applicable Models: The window regulator drum gear spool compatible with Kia Optima 2016-2020, compatible with Kia Sportage 2017-2021, compatible with Hyundai Tucson 2016-2020. Quality Material: Our window regulator drum gear are made of quality materials with excellent durability, wear resistance and corrosion resistance. It can withstand frequent window operations without affecting its performance. Ensure Smooth Window Operations: Replacing the worn or damaged gear of the window regulator will help to maintain the normal operation of the window, ensure the smooth operation of the window and avoid unnecessary maintenance costs. Enhance Vehicle Safety: A properly functioning window regulator is crucial for your vehicle's safety. By fixing damaged gears, you can ensure that your windows close securely when needed, improving overall vehicle safety. Complete set: Our kit contains the gears needed for the front, rear, left and right windows of your vehicle, which makes it easier for you to maintain and repair multiple windows, saving time and effort. At the same time, the installation is also very simple, just replace the old gear with a new one.