We do not have the part Number for this but it will fit all 1998-2005 ML's with an ABS Pump and other Mercedes-Benz Vehicles.

This is for the item pictured. This part goes between the Brush Motor on the ABS pump and the Pump Module. O Gear Bearing OEM Genuine used Part.

98-01 Mercedes W163 ML55 AMG ML320 ML430 ABS Anti Lock Brake Pump part O Gear Bearing for Pump Valve OEM.

Interchangeable with all years 1998-2005.