The model number is normally found inside the fridge or freezer. You will likely need to remove the salad drawer or freezer drawer to find the model number plate. Otherwise the model number is likely to be on the side or rear of the appliance.
Bosch Door Bottle Shelf Bottom Milk Rack Genuine For KIV32X23GB/03 KIV32X23GB/
Bosch Door Bottle Shelf Bottom Milk Rack Genuine For KIR18V00GB/02 KIR18V01/01
Bosch Door Bottle Shelf Fridge Freezer Bottom Rack Tray GENUINE 00709646 709646
BOSCH Door Bottle Shelf Bottom Tray Fridge KGN KGV see models GENUINE 709646
Bosch Door Bottle Shelf Bottom Milk Rack Genuine For KIV38X22GB/03 KIV38X22GB/
Bosch Door Bottle Shelf Bottom Milk Rack Genuine For KIV32X22GB/01 KIV32X22GB/