Installation of a Motion Windows T slider aftermarket window into an '04 Sprinter sliding door. Part#: 140-1, which is specific to both the sliding door and the 140" wheelbase. This documents a consumer installation. Installation instructions were near non-existent. Internet searches, combined with some basic tools and a bit of lay-person hand-man skill level was applied. All in, it took about two hours including drying time for 3x coats of automotive primer on the cut sheet metal. We chose the Motion Windows over other options so that we could use the open window feature while the vehicle is in motion.