An underbody panelling part of a wheel axle near the wheelhouse of a motor vehicle includes a substantially flat main part, a first mounting point provided on the main part, which first mounting point can be rotatably connected to a transverse link of the motor vehicle, and a second mounting point provided on the main part, which second mounting point can be coupled to a wheel carrier or a steering rod. The underbody panelling part can be pivoted about the first mounting point when the wheel carrier is pivoted. A subassembly having the underbody panelling part is also provided.