Hornby R7274 - 4 Pin Plug Locomotive Decoder The 4-pin decoder, previously only available as a spare (X9659), is compatible with the 0-4-0 W4 Peckett from the 2020 range. The 4-pin decoder, previously only available as a spare (X9659), is compatible with the 0-4-0 W4 Peckett from the 2020 range.
