Detail with Sunlight
Driver (wheel) and Rail Sander (at right of wheel)
Detail 2 - Side rods, valves and drivers
UP4014 Big Boy
Detail 4 - Driver with Side Rods
Detail 1 - Side Rods and Valves
UP4014 At Houston Terminal
Coal Tender
Detail 11 Front Pistons
Detail 5, Intermediate Driver and Side Rods
Detail 6A Driver Rod
Detail 8
Detail 9
Detail 3 - Side rods, valves and drivers
Detail 10 Chain
Detsail 7
Detail with Sunlight
Driver (wheel) and Rail Sander (at right of wheel)
Detail 2 - Side rods, valves and drivers
UP4014 Big Boy
Detail 4 - Driver with Side Rods
Detail 1 - Side Rods and Valves
UP4014 At Houston TerminalUP4014 was parked at the Houston Amtrak Station for one day.
Coal TenderCoal Tender for UP 4014 Big Boy. Coal tender trucks are visible below.
Detail 11 Front Pistons
Detail 5, Intermediate Driver and Side RodsDetail of a intermediate balanced driver with its side rods.
Detail 6A Driver Rod
Detail 8
Detail 9
Detail 3 - Side rods, valves and drivers
Detail 10 Chain
Detsail 7
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