PRE-ORDER: Walthers Mainline 910-20386 - EMD SD50 (DCC and Sound) Missouri Pacific (MP) 5053 - HO Scale

Pre-Order Due Date:  Nov 30 2025

Most manufacturers give a Pre Order ETA which can be seen near the 'add to cart' button. They also give a due date which is indicative of when the product is expected to go into production.

Please note that the software forces us to leave the "In Stock" banner up for the product to be orderable. Any pre order that says "In Stock" is not actually in stock, as denoted by the bigger "PRE-ORDER" banner.

There is a 5% NON-refundable deposit for preorders, this amount will be deducted from the price of the product when it arrives.  You will see how much downpayment is required after adding the item to your cart.

For any pre-order submitted after the due date, we will try our best to fulfill your order, but are at the mercy of the manufacturer and if they produce more than were preordered by their dealers.

Pre-Orders will show a 0 shipping cost now, and shipping will be included on your invoice at time of product arrival.

When the product(s) are available to ship, you will receive an invoice via email and text through Intuit QuickBooks for the remaining 95%. Message and data rates may apply.

Please note that Estimated Arrival Dates can change at any point. Midwest Model Railroad is not responsible for manufacturers delaying production.

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This WalthersMainline EMD SD50 is perfect for heavy freight service on your HO Scale railroad. As demand for higher-horsepower units and better fuel economy continued to grow in the late 1970s, EMD began testing a new six-axle model in 1979, which entered production as the SD50 in 1981. Like the prototype, this locomotive is a great addition to your railroad's fleet of heavy diesel road units. The WalthersMainline SD50 has the features you want to make it a star performer on your layout!

• One time run of these road numbers, order now - limited quantity available!
• Prototypes in main line, regional and lease-fleet service from 1984 to the present
• Updated power trucks with HT-C sideframes
• Open grating on steps
• Phase Two body shell with molded drill starter points for grab irons in EMD SD50-60 Diesel Detail Kit (910-256) sold separately
• Correct size RP-25 metal wheels
• Proto MAX(TM) metal knuckle couplers

Equipped with ESU sound and DCC for use on DCC and DC layouts featuring:

• 4 Function outputs with brightness control by CV
• Fully DCC compatible
• 14, 28, 128 speed steps
• Dual-mode DC-DCC
• 4 Air horns changeable by CVs
• 2 Bells changeable by CVs

Same powerful drive as WalthersProto(R) locos featuring:

• 5-pole skew-wound motor
• 14:1 gear ratio
• Helical-cut gears for quiet operation and easy multiple unit operation
• All-wheel drive and electrical pickup
• Dual machined brass flywheels
• Heavy die-cast metal chassis
• Constant and directional LED headlights

 
PLEASE NOTE: When operating Walthers-branded DCC-equipped locomotives in DC mode, do not use power packs that exceed an 18V rating. This includes MRC 1300-series power packs which have known issues with our decoders.
 

Alternate horns and bells include:

Horns:
CV163 = Nathan K3LA (default)
CV163 = Nathan P3
CV163 = Leslie RS3L
CV163 = Nathan K5LA
CV163 = Nathan P5


 
Bells:
CV164 = Steel Air Bell (default)
CV164 = Graham White E-Bell