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    MTH Electric Trains
    Part # 507-8031921

    Steam 4-8-8-4 Big Boy Modified - Proto-Sound 3.0 & DCC Equipped -- Union Pacific #4017

    $599.95
    Out of Stock
    Availability: Sold Out
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    Union Pacific
    Walthers Part# 507-8031921
    MTH Electric Trains
    Part # 507-8031921

    Steam 4-8-8-4 Big Boy Modified - Proto-Sound 3.0 & DCC Equipped -- Union Pacific #4017

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