MOC-89126 4014 Big Boy | Version 2 Building Blocks

Designed by Morningstrummer on Rebrickable, this MOC model faithfully recreates the legendary Big Boy steam locomotive—the world's only 4-8-8-4 wheel configuration steam engine. Renowned as the largest and most powerful steam locomotive ever built, Big Boy features two sets of four-axle driving wheels, each with its own independent pistons and crank connecting rods, offering unparalleled historical and mechanical accuracy. The finished model measures 89 cm long, 8.5 cm wide, and 13.5 cm high.

Crafted from premium eco-friendly ABS material using precision casting, the set includes tightly fitting pieces that are smooth, burr-free, and rich in color—ensuring both safety and quality in assembly.

Comes with easy-to-follow, illustrated instructions accessed via QR code, making construction straightforward and enjoyable.

Perfect for display and decoration, this RC-compatible model also promotes hands-on learning, making it a standout gift for train enthusiasts, collectors, and aspiring engineers.