Application Notes: Engine: 2.5LL L6;. 2000 BMW 323Ci Engine: 2.5LL L6;. Part Type: Engine Water Pump Pulley. Oversized Pulley: No. Pulley Type: Serpentine. Undersize Pulley: No. Manufacturer: Dorman. To confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in theCompatibility Table.