Motor, Train Base, 12V Modern Type I with 2 round contact holes

Reference

501a

BrickLink® #

bb0012va

Motor, Train Base, 12V Modern Type I with 2 round contact holes (part 501a) is a LEGO element. CollectORbuild's catalog records it in 5 sets, including Diesel Shunter Locomotive and Electric Goods Train. It has been produced in 2 different colors.