They were converted from former Brake Gangwayed (BG) vehicles in 1968 to supplement the Class 419 Motor Luggage Van fleet. However, following the decline of boat train traffic, they were all stored in 1975. After a period in use as match wagons for transferring new Class 432 and 491 units from York Works, they were all taken into departmental stock initially as stores vans, but later as breakdown train tool vans.