HO G2 SD90MAC-H Phase I Union Pacific #8512 Model Locomotive (ATHG27222)

HO scale Union Pacific SD90MAC-H Phase I locomotive is a detailed model designed for HO layouts, letting model railroaders recreate UP's late-1990s diesel power with accuracy and presence on their tracks.

It captures authentic Phase I variations, including the end-of-train device mounted farther forward on the fuel tank and, in some cases, the starter capacitor removed, reflecting real-world differences seen in early UP runs. This UP-phase I model is well suited for expanding a realistic freight roster and adding a distinctive, high-horsepower silhouette to modern-era layouts.