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 KGN34NWEAG Door Shelf Bottom Milk Rack Tray Fridge Freezer GENUINE
Bosch KGV33XW30G Series 4 Fridge Freezer Door Shelf Bottom Bottle Rack Tray
Bosch KGN27NWFAG/01 Fridge Freezer Refrigerator Door Shelf Bottom 11044042
Bosch Door Shelf Bottom KGN34NW3AG/03 KGN34NW3AG/04 KGN34NW3AG/05 KGN34NWEAG/01
Bosch Door Shelf Bottom KGN34NWEAG/02 KGN34NWEAG/03 KGN34NWEAG/04 KGN34NWEAG/05
Bosch Door Shelf Bottom KGN33NWEAG/02 KGN33NWEAG/06 KGN33NWEAG/08 KGN33NWEB/01