Lionel 2331290 O Scale Vision Line 4-8-8-4 Big Boy Steam Loco Union Pacific UP 4024 (Gray/Yellow Scheme) H10 supercharger air intakes and roll

supercharger air intakes and roll bars

Black-oxide coating: Corrosion and rust don't stand a chance

Updated to LED Lighting

Includes all that is needed to change your TRX-4 to the popular 12

Completion Level: Kit

Lionel 2331290 O Scale Vision Line 4-8-8-4 Big Boy Steam Loco Union Pacific UP 4024 (Gray/Yellow Scheme) H10 supercharger air intakes and rollLionel 2331290 O Scale Vision Line 4 8 8 4 Big Boy Steam Loco Union Pacific UP 4024 (Gray Yellow Scheme) Big Boy the locomotive needs no further introduction. Union Pacific's twenty five 4 8 8 4s have been turning heads and leaving lasting impressions since the day they first rolled out of the erecting shop. For all that has been said of their size, the Big Boys were just as impressive for their performance. Today, 4014 is the pride of the railroad