Athearn Genesis G27278 HO Scale EMD SD90MAC Union Pacific UP 8037 SavoxAir Truck sideframes

Truck sideframes

Random 2-6 second start delay prevents drivers from anticipating the start light

making it both lightweight and durable and it incorporates details such as a mock-up engine and the ability to fine-tune the wing setting for low and high downforce

fuel-efficient and having greater horsepower than its predecessors

Athearn Genesis G27278 HO Scale EMD SD90MAC Union Pacific UP 8037 SavoxAir Truck sideframesAthearn Genesis G27278 HO Scale EMD SD90MAC Union Pacific UP 8037 Introduced in 1995, the EMD SD90MAC was intended to become that builders most powerful single engine diesel locomotive. The new locomotive was to use EMDs newly developed 265H prime mover, featuring 6000 horsepower. However, this engine was experiencing technical problems in development, which led to the first groups of locomotives being delivered with the EMD 710G prime mover of 4300