MTH Premier Steam — Cat. No. 20-30160-1 The legendary Union Pacific Big Boy 4-8-8-4 — the world's largest articulated steam locomotive — built in MTH Premier brass and die-cast with Proto-Sound 3.0, finished in a custom Jack Daniel's road-name livery. A Roundhouse South exclusive. Pre-order details $200 deposit required at checkout to reserve your engine. Shipping will be added; sales tax if applicable. Estimated ship date: December 2026. Balance due when your engine arrives at our warehouse — we'll send you a secure payment link by email so you don't have to come back to the site. Questions? Call the shop. Tony: (386) 304-7002 Email: [email protected] About the engine MTH Premier Series — brass detailing and die-cast construction at the top of MTH's lineup Proto-Sound 3.0 — synchronized chuff, authentic whistle, bell, crew talk, and operating effects O gauge — please verify minimum curve clearance on your layout before reserving Runs in conventional, command, or DCS wireless operation Custom Jack Daniel's livery — a Roundhouse South exclusive, not appearing in any future MTH catalog