The number 2343-120 is the part number of the plastic part only. The part number for the brush plate assembly is 2343-119. However, since the 2343-120 number is clearly imprinted on the part, the part is frequently mis identified by this number. When looking for a replacement search for both the 2343-119 and the 2343-120 numbers. As far as I know Lionel never sold just the plastic part, so you are fairly safe that either way you will get the correct part.
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