This is a 1990 run model imported by Overland Models, Inc. and built by Ajin Precision Mfg. in Korea. The original box shows almost no shelf wear and comes with spare and detail parts. The SD40X was an experimental testbed for EMD, featuring the new 645 series prime mover, the 16 - 645E3, built on an SD35 frame. From 1964 - 1965, nine examples were built, with eight going to the UP and one to the GM&O. This model represents Union Pacific Nos. 3046 and 3047, with flush - mounted radiators and extended - range dynamic brakes. It's a great example of Ajin's later build quality, running smoothly and relatively quietly. It's a rare model as only 25 of this version were imported. Details: Brand - Brass OMI - Overland Models, Inc; Part Number - OMI - 5396; Condition - C - 8 Like New; Wheel Wear - Almost None; Noise - 4 of 10 (Moderate motor/gearbox noise); Operation - Runs smooth; Motor - Can Motor; Backhead/Interior Detail - Yes (In Cab Detail); Decorated - Unpainted (Almost no tarnish); Control - DC – Analog; Lighting - None; Couplers/Trucks - No Couplers installed, Sprung trucks are a nice touch; Packaging - Original box, foam insert, and cardboard liner. Shipping: Free domestic USA shipping for all purchases over $199! Flat shipping rates are based on item value or weight. All items are fully insured and shipments over $250 require a signature. We ship worldwide. International rates are calculated for the lowest/slowest options. Buyer is responsible for imports, duties, and tariffs. Rates are calculated at checkout. Packing is top - notch as we have over 10 years of experience with these fragile models. Payment: We accept major credit cards, PayPal, Apple Pay, Google Pay. We don't accept personal checks or cash by mail. Bank checks and money orders may be accepted with prior approval. All prices are in USD. 100% Satisfaction Guarantee: If not happy, we offer a 30 - day no - questions - asked money - back policy. Buyer pays return shipping unless the item arrives damaged.

Using this model train is quite straightforward. First, make sure you have a DC - analog power source. Connect the model to the power source and switch it on to start the smooth operation. Since it has no lighting, you won't have to worry about any additional setup for that. When it comes to storage, keep it in the original box with the foam insert and cardboard liner to protect it from damage. As for maintenance, regularly check the wheels for any signs of wear. Although the wheel wear is almost none now, gentle handling can keep it that way. Clean the model gently with a soft cloth to prevent any tarnish. If you notice any moderate motor/gearbox noise, don't be overly concerned as it's normal for this model. And remember, if you have any issues, we're here to help with our 100% satisfaction guarantee.