BLI 8350 HO Scale 4-8-8-4 Big Boy Steam Loco Union Pacific UP 4001 Paragon4 DCC D&RG Weighing 9g this machined brass

Weighing 9g this machined brass servo mount increases durability and lowers your rigs center of gravity

free wheel action

True scale pinion & ring gear axles

Phase “TZL” – Outwardly identical to Phase “TZH” cars

BLI 8350 HO Scale 4-8-8-4 Big Boy Steam Loco Union Pacific UP 4001 Paragon4 DCC D&RG Weighing 9g this machined brassBLI 8350 HO Scale 4 8 8 4 Big Boy Steam Loco Union Pacific UP 4001 Paragon4 Sound & DCC As Delivered 1941, 25 C 100 Coal Tender Note: Roadnumber may vary in photos Often called the largest steam locomotive ever made, and certainly a contender for the Worlds Most Famous Locomotive, the Big Boy was forged under some of the most strenuous demands ever placed on a locomotive. The UP Railroad needed a locomotive that could be used to pull a 3,600 ton train