The Athearn ATHG27322 is a fantastic HO scale model of the SD90MAC-H Phase I UP Union Pacific #8512. It comes with DCC and Sound Tsunami2 features. The UP series has unique characteristics. For example, #8503 and #8500 were originally #8203 and #8160. #8509, #8512, and #8520 have the starter capacitor removed and the EOT mounted forward on the fuel tank. Union Pacific was the sole buyer of the SD90MAC-H. The 8500 series we offer was delivered between 1997 - 1999 before being renumbered to the 8900 series. The SD90MAC-H locomotive has many great features. It's a brand - new model previously only in brass, fully - assembled and ready - to - run. It has DCC - ready Quick Plug™ technology with a 21 - pin NEM connector. The paint schemes are accurately done, and it's scaled from prototype resources. It has various details like coupler cut levers, rubber MU hoses, and see - through cab windows. The Genesis 2.0 version brings more advancements such as etched, see - through walkway steps, illuminated number boards, and ground lights. Sound - equipped models have an onboard DCC decoder with SoundTraxx Tsunami2 sound, dual cube speakers for great sound quality, and work in both DC and DCC. The prototype SD90MAC - H Phase 1 had a unique design due to the 256H prime mover, and only 22 were produced for Union Pacific, all scrapped by 2009. This Athearn model offers cutting - edge detail and strong pulling power for modelers.

Using this Athearn SD90MAC - H model is easy. First, if you're using DC mode, you can operate basic functions like engine, horn, and bell sounds right away. In DCC mode, you'll have access to full DCC functions. The model is ready - to - run, so you can simply place it on your track and start it up. When storing, the packaging is designed to hold the model securely. For maintenance, keep the model clean. You can use a soft brush to remove dust from the body, wheels, and details. Avoid getting water or any liquid on the electrical components. If you need to clean the wheels, use a gentle wheel cleaner. Make sure to check the couplers regularly to ensure they're working properly. Also, be careful when handling the model to avoid damaging the fine - scale details like the handrails and wire grab irons. With proper care, this model will provide you with a long - lasting and enjoyable experience.