Rapido HO Scale EMD SD70AC Diesel Locomotive – CSX YN3c Rebuild #4706 w/ Flared Radiator (DC/DCC/Sound)

TheRapido HO Scale EMD SD70AC Diesel Locomotive – CSX YN3c Rebuild #4706 w/ Flared Radiator (DC/DCC/Sound)is a highly detailed HO scale model representing modern rebuilt diesel power in active CSX Transportation service. Finished in the updatedCSX YN3c paint scheme, this locomotive delivers contemporary railroading realism with premium detail and performance.

Modeled as road number4706, this locomotive represents a rebuilt SD70MAC converted intoSD70AC configuration, part of CSX’s extensive modernization program. These units retain the strength and reliability of the original SD70MAC platform while incorporating upgraded systems to extend service life and improve efficiency in modern freight operations. :contentReference[oaicite:0]{index=0}

SD70AC Rebuild – Modern CSX Fleet Power

TheSD70AC designationreflects CSX’s rebuild initiative, where existing SD70MAC locomotives are upgraded with modern electronics, traction systems, and operational enhancements. These rebuilt locomotives are now widely used across CSX’s network in heavy-haul, intermodal, and mainline service.

• CSX Transportationroad name
• YN3c paint scheme
• Road number 4706
• SD70AC rebuilt configuration
• Flared radiatorvariation
• DC/DCC/Soundconfiguration

Premium Rapido HO Scale Features

• Late-production Tier 1 SD70 tooling – first time in plastic
• Flared radiator variation specific to rebuilt units
• Multiple nose and cab variations (nose light, high headlight, gyralight)
• Railroad-appropriate PTC antennas where applicable
• Three HTCR truck variations with rotating bearing caps
• Full lighting package includingtrack, step, and walkway lights
• Heavy die-cast framefor superior traction and pulling power
• Metal grab irons and etched-metal steps
• Full cab interior detailing
• MoPower capacitor system for uninterrupted DCC operation
• Suggested minimum radius:22 inches

Ideal for Modern HO Scale Layouts

TheHO Scale CSX SD70AC #4706is ideal for modelers focused on present-day railroading, including intermodal service, manifest freight, and heavy-haul operations across the eastern United States. These rebuilt locomotives are a common sight in modern CSX consists, making them essential for accurate contemporary layouts.

• Modern HO scale diesel locomotive rosters
• CSX contemporary operations
• Intermodal and mixed freight service
• Distributed power and multi-unit consists
• Collectors of modern rebuilt locomotives

Expand Your SD70 Series Fleet

Looking to build out your modern diesel roster? Explore more SD70-series locomotives here:

Shop Rapido HO Scale EMD SD70MAC & SD70 Series Locomotives

Why This Model Stands Out

TheRapido HO Scale EMD SD70AC CSX #4706combines a modern rebuilt prototype, updated CSX YN3c styling, and premium HO scale construction into one standout locomotive. Whether you are modeling current CSX operations or expanding a modern diesel fleet, this locomotive delivers both realism and strong visual presence.

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