MTH Premier 20-3807-1 O Scale 4-8-8-4 Big Boy Steam Loco Union Pacific UP 4014 SavoxParts Traxxas 3777A All Star Black

Traxxas 3777A All Star Black Chrome Wheels with Anaconda Tires Nitro Front

Voice-guided Audio Assist programming tool for easy setup of almost all decoder functionality

Modeled on the real car – Includes features like the V6 cylinder engine with moving pistons

Constructed from high-quality heavy-weight brass

MTH Premier 20-3807-1 O Scale 4-8-8-4 Big Boy Steam Loco Union Pacific UP 4014 SavoxParts Traxxas 3777A All Star BlackMTH Premier 20 3807 1 O Scale 4 8 8 4 Big Boy Steam Loco Union Pacific UP 4014 Just months before Pearl Harbor, the American Locomotive Company delivered the first Big Boy to the Union Pacific Railroad. The UP's Department of Research and Mechanical Standards had designed the locomotive for a specific task: to pull a 3600 ton train unassisted over the Wasatch Mountains in Utah. While the Big Boy is often cited as the biggest steam locomotive ever