Up for sale is genuine Nachi heavy-duty ball bearing for the supercharger/kompressor motor found in the following AMG 55 series cars:
Bearing size is 45 mm (inner diameter), 75 mm (outer diameter) and 32 mm (thickness). This is a genuine Nachi bearing (not a rebadged "Nachi Quest" bearing that others are selling). It is made in Japan and guaranteed authentic. When choosing a bearing for automotive use, you don't want to use cheap, low quality, no-name brands or counterfeit bearings as their use could endanger property or lives. Nachi is a trusted brand/manufacturer of quality bearings that meet or exceed OEM specifications.
It replaces the following part numbers:
45BG07S5DL 45BG07S5AIG-2DL CLS55 AMG Kompressor