The Automatic Refrigerated Milk Car No. 3462 was first introduced with this car in 1947, and went on to become one of the most popular of the operating cars of the Post War Era. Production of this version ended with the issuance of the No. 3472 in 1949. Lionel offered a unique sliding mechanism on the A Varation of this car (1947), but would paint these cars EGGSHELL WHITE on the B Variation. The C Variation (issued in 1947-48) improved upon the mechanism that was in the early issues and this variation is more common. This car came with aluminum doors and Type 3 trucks.


The car came with seven magnetic milk cans, No. 3462-70, that were loaded manually through a hatch in the roof and were unloaded with the use of a 6019 or UCS track section on to the platform. However, Lionel found it more convenient to box up six cans, and later issues of this car would have only six milk cans.