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    MTH Electric Trains
    Part # 507-3012871

    RailKing Steam 4-8-8-4 Big Boy Powered w/Proto-Sound 2.0 -- Union Pacific

    $699.95
    Out of Stock
    Availability: Sold Out
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    Union Pacific
    Walthers Part# 507-3012871
    MTH Electric Trains
    Part # 507-3012871

    RailKing Steam 4-8-8-4 Big Boy Powered w/Proto-Sound 2.0 -- Union Pacific

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