ROBOROCK lower housing assembly for S7 Max Ultra robot vacuum, 9.01.2028

ROBOROCK 9.01.2028 — lower housing assembly for S7 Max Ultra robot vacuum; water tank in the box, black, weighs 0.58 kg. The lower housing carries the whole drivetrain and the mounting points for every assembly, so it gets replaced after a fall down the stairs, cracks around the mounts, or when the plastic has warped and parts no longer seat. It is a major repair: the robot has to come apart completely and all the internals move across. Match the part number and the colour — housings from different revisions do not share mounting points.