HO SD40T-2 Locomotive SP #8243 (ATH71747)

HO Scale SD40T-2 Locomotive SP 8243 is a highly detailed HO model of EMD’s six-axle tunnel motor, designed to bring SP’s distinctive power and styling to a model railroad layout. The replica captures the late-Dash-2 cab with see-through windows, a cab-mounted Nathan 3-chime horn, LED lighting, and the characteristic rear radiator intakes and plow that define the tunnel motor, delivering a faithful look for prototypical operation and display.

Inside, it balances show-piece accuracy with dependable running: an all-wheel-drive chassis with precision gears, a 5-pole motor with flywheels and a multi-link drivetrain, and the option to upgrade with a Genesis motor for higher performance. It’s DCC-ready with a 21-pin NEM Quick Plug and uses nickel-plated, blackened machined wheels with RP25 contours for smooth tracking on most HO tracks. Sound-equipped variants include an onboard DCC decoder with SoundTraxx Econami, delivering engine, horn, and bell sounds in DCC while remaining operable on DC. This SP 8243 model is offered in Legendary Liveries—iconic or alternative paint schemes that suit proto-freelance or display needs. For layout planning, a minimum 18" radius is recommended, with 22" or larger preferred for best performance.