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Athearn (ATH)
SKU:ATH73054
HO SD40T-2 Locomotive SP/Speed Letter #8294 (ATH73054)
HO SD40T-2 Locomotive SP/Speed Letter #8294 (ATH73054)
HO Scale SD40T-2 SP Speed Lettering locomotive is a meticulously detailed, ready-to-run model that recreates Southern Pacific’s 1991 Speed Lettering era. This tunnel-motor SD40T-2 carries the SP branding, including an 88-inch nose with brake wheel, front ditch lights, a relocated P3 horn, a modified front window, and an extended dynamic braking system, all rendered with fine-scale handrails, see-through radiator grilles, and a painted, prototype-accurate shell.
On the rails, it offers dependable HO-scale performance with a 5-pole motor and flywheels for smooth, quiet operation and all-wheel electrical pickup. It is DCC-ready with 21-pin NEM Quick Plug, and some versions include onboard Tsunami2 sound for engine, horn, and bell sounds with full DC/DCC compatibility and excellent slow-speed control. The model ships fully assembled and decorated, featuring nickel-plated, blackened machined wheels with RP25 contours for reliable running on most track brands, and it’s recommended for a 22-inch radius to accommodate SP’s tunnel-motor styling and the level of detail included.
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Parts List
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Product Manual

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Example product title
Vendor:VendorRegular price $179.99Regular priceUnit price / perSale price $179.99
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