PRE-ORDER: Walthers Mainline 910-20686 - EMD SW7 Phase II (DCC and Sound) Louisville & Nashville (L&N) 2233 - HO Scale

Pre-Order Due Date:  March 31 2026

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Pre-Order FAQ

Most manufacturers give an ETA on when they expect to release the pre-order which can be seen near the "add to cart" button on the product page. They also give an order due date (found in the product description) which is indicative of when the product is expected to go into production.

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. We do not store your payment information and it is not charged by us when the product arrives.

For any pre-order submitted after the due date, we will try our best to fulfill your pre-order, but are at the mercy of the manufacturer and if they produce more than were preordered by their dealers. If we cannot fulfill your pre-order we will credit the 5% deposit to you.

When the pre-ordered product(s) are available to ship, you will receive an email requesting the remaining 95% payment that will take you to your cart. It is at this point you are asked for shipping address and method OR in-store pickup.. We will never charge your payment method without you checking out. At this time you are also able to add other in-stock items if you wish.

Please note that Estimated Arrival Dates can change at any point. Midwest Model Railroad is not responsible for manufacturers delaying production. Visit midwestmodelrr.com/pre-orders/ for more information.

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From coach and freight yards to primary power for shortlines, the WalthersMainline SW7 is a perfect choice for your HO layout! Delivering 1200-horsepower from an updated 567A prime mover, the prototypes proved popular with both railroads and industrial lines, with nearly 500 produced in just two years from 1949 to 1951, with several still in service, each layout-ready model is packed with features including:

• One time run of these roadnumbers, order now - limited quantity available
• Used by dozens of railroads and industrial lines for switching, local and branch line service with several preserved today!
• - Phase One body as appropriate with arched front cab windows and louvered radiator cover for units built from 1949 to 1950
• - Phase Two body as appropriate with straight front cab windows and wire grille radiator cover for units built from 1950 to 1951
• - Dual tall conical exhaust stacks
• - Large front radiator grille
• - Single straight hood to cab transition
• - 6 louvered side doors with letterboard gap
• - Factory-installed grab irons on hood and cab
• - With or without footboards as appropriate
• - 4 styles of headlights to match prototype practice as appropriate:
• * Original large single
• * Retrofit horizontal dual
• * Retrofit dual vertical
• * Dual sealed beam
• Same powerful drive as WalthersProto(R) locos featuring:
• - Five-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
• - Heavy die cast metal chassis
• - Constant and directional LED headlights
• Next18 DCC plug
• Preinstalled cube-type speaker on standard DC and sound & DCC units
• Correct size RP-25 metal wheels
• Proto MAX(TM) metal knuckle couplers

 
This version of the WalthersMainline SW7 diesel is supplied unpainted, ready for customizing, based on phase two prototypes built from 1950 to 1951. The model includes four optional headlight styles: original large single beam, dual horizontal refit, dual vertical refit and dual sealed beam. Some assembly is required. Horn is not included.