Back on HO rails in several new paint schemes, the WalthersMainline Electro-Motive Division SD50 stands ready for heavy freight service on your layout. The accurately sized HO scale model is based on a hard-working prototype that’s been hauling tonnage for more than 40 years.

As demand for higher horsepower locomotives grew in the 1970s, EMD began testing a new six-axle model in 1979 that eventually entered production as the SD50 in 1981. With EMD’s powerful 3,500 hp diesel engine at its core, the SD50 joined the rosters of several class 1 railroads. SD50s continue to serve in regional and short line service today.

With a long list of features, the WalthersMainline EMD SD50 is sure to be a star performer on your layout!

Features of these models include:

• Available with factory-installed ESU Sound & DCC decoder featuring:

- Dual mode DC/DCC compatible

- 14, 28, 128 speed steps

- 4 function outputs with brightness control by CV

- 4 air horns changeable by CV (Nathan K3LA, Nathan P3, Leslie RS3L, Nathan K5LA, Nathan P5)

- 2 bell sounds changeable by CV (Steel Air Bell, Graham White E-Bell)

• Same powerful drive as WalthersProto® locomotives:

- Five-pole skew-wound motor for reliable, trouble free operation

- 14:1 gear ratio for exceptional slow-speed performance

- Helical-cut gears for quiet operation & easy multiple unit running

- All-wheel drive & electrical pickup for exceptional pulling power

- Dual-machined brass flywheels for smooth motor operation

- Heavy die-cast metal chassis keeps the SD50 on track

- Constant & directional LED headlights add even more realism

• Pre-installed 28mm round speaker
• 21-pin DCC plug
• RP-25 metal wheels
• Proto MAX metal knuckle couplers
• See-through step treads
• Phase II body shell includes molded drill starter points for grab irons in EMD SD50-60 Diesel Detail Kit (#910-256), sold separately
• Detailed HT-C truck sideframes

Order Due Date: November 30, 2025

Anticipated Delivery Date: May 2026

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