Kato USA Model Train Products EMD F3B Late Type Santa Fe "Warbonnet" N Scale Train This B-Unit (cables booster) engine features the same powerful 5-pole Kato motor as the A-units for greater power in consists Drop-in DCC compatible with the Train Control Systems and Digitrax Decoders "Late type" tooling to replicate the later appearance of these F3 locomotives Most B units were numbered so small that it is illegible at N scale levels, so this locomotive has no set road #