RazorBack Offroad RBO4163 Rear Sliding Window

RazorBack Offroad RBO4163 Rear Sliding Window is a direct-fit rear window replacement for Polaris RZR Trail models from 2021 to the present, with the part number RBO4163. Some retailers list the same unit as RBO4163-SSS. This window is designed for Polaris RZR Trail and Trail S configurations, providing a sliding panel in the rear area to enable adjustable airflow while the window remains mounted. It is part of RazorBack Offroad's RBO line of UTV windows, offering a purpose-built solution for the RZR Trail family. Verify compatibility with your specific year and model to ensure proper fit, as listings differentiate between Polaris RZR Trail variants. The RBO4163 designation is the official model for this rear sliding window, and, where present, retailers may reference the -SSS suffix as a variant identifier for the same window. Suitable for off-road use in recreational UTVs, this window supports ventilation needs in the rear cabin while preserving the vehicle’s rear profile.